Historical Cone Collapses in the Southwest Pacific

Ritter (PNG) 1888. Major cone collapse without signs of volcanic eruptions

led to the formation of a Tsunami 12 to 15 meters high on nearby islands. An early missionary

map shows the positions of villages in western New Britain that no longer exist. Several

hundred people were probably killed.



Ambae (Vanuatu) 1913. A lateral collapse after a large earthquake generated a landslide that

Caused possibly about 50 deaths.



White Island (New Zealand) 1914. This volcano located 48 kilometers offshore from the

North Island has a horse-shoe shaped crater just above sea-level. Part of the crater rim

collapsed along a fault on or about September 10th and fell to the crater floor. There were 11

fatalities. No Tsunamis were reported.



Ruapehu (New Zealand) 1953. The upper portion of Ruapehu's crater wall failed on Christmas

Eve releasing more than 1 million cubic meters of Crater Lake waters. The collapse was

relatively small but resulted in a devastating lahar that swept away a railway bridge as the

main Wellington-Auckland express train was crossing and 151 lives were lost in what has

become known as the  Tangwai Disaster.



Tinakula (Solomon Islands) 1966. A landslide of unknown cause slipped into the sea from

the high wall of an ancient avalance amphitheater. There may have been a Tsunami but no

lives were lost.



Lopevi (Vanuatu) 1975. A landslide associated with a lava flow from the summit crater

plunged into the sea. No Tsunami was recorded but the residents have now been permanently evacuated. 

Mt. Ruapehu-Crater-Lake (Fact Sheet)

Early Warnings When the Volcano Starts to Slip

Cumbre Vieja Volcano - Potential Collapse and Tsunami at La Palma, Canary Islands

MAR-2005: Bulletin of the Global Volcanism Network

(WOVO) World Organization of Volcano Observatories

Maps of Volcanoes located within the North American Continent

Map of North American Volcanoes

Map of Aleutian Volcanoes

Map of Nevada Volcanoes

Map of Volcanic Hazard Zones for California

Major Volcanoes of Mexico

General Location Map of the Long Valley area, California

Eastern California Shear Zone
CA/NV Border/Eastern Sierras/Yellowstone/Cascades
Tectonic and Volcanic Activity

Mount St. Helens Erupts Again: Activity from September 2004 through March 2005

An Assessment of Volcanic Threat and Monitoring Capabilities in the U.S.:
Framework for a National Volcano Early Warning System

Birth of a Fault: Kern County to Walker Pass

Probing Volcanoes: USGS Public Lecture in Multimedia .wmv (12/4/2004)

Yellowstone Supervolcano: Transcript

The 1700 Seattle SuperQuake & Japanese Tsunami: Nature

How Volcanoes Work

Yellowstone Swarm Report: 2004

Volcanoes of Canada

The Long Valley Caldera: White Mountains Region

Living With a Restless Caldera:Long Valley, California

Future Eruptions in California's Long Valley Area--What's Likely

Adobe Hills Volcanic Field

Summary of Holocene eruptive activity and probable greatest hazards from future eruptions at volcanic centers in California

Eruptions from the Inyo chain about 600 Years ago: sequence of events and effects in the Long Valley Area

Long Valley Tilt Meters

Photo Gallery of the Long Valley area, California

ERS radar interferometry reveals strain transient in the Eastern California Shear Zone

Lithospheric Dynamics and Continental Deformation

USGS California Tiled 2 Degree Maps

USGS California Quarternary Fault and Fold Database Maps

Earthquake Prediction & Forecasting Techniques

USGS 24 hour Seismic Forecast

Predicting an Earthquake

Earthquake Prediction

EARTHQUAKE PREDICTION: Some Basic Principles

Earthquake Prediction: Predicting the Unpredictable?

Time-Dependent Viscoelastic Stress Transfer and Earthquake Triggering

Inferring Viscous Properties of the Lithosphere

Potential Sources for Earthquakes in Northern California

Pulling the Rug Out from Under California

Giant Earthquakes Beneath Canada's West Coast

The role of stress transfer in earthquake occurrence

The San Andreas Fault System: General Information, Data, Maps, Charts and Graphics

Foreshocks & Aftershocks of the Great 1857 Fort Tejon, CA Earthquake

The Great 1857 Fort Tejon Earthquake: Shake, Rattle & Roll

Quakes Along Central San Andreas Fault Peak Every Three-Years

Volcanoes and the San Andreas Fault

The San Andreas Fault system through the Transverse Ranges as illuminated by earthquakes

Deep Tremors Along the San Andreas Fault

Aftershocks of the 1952 Tehachapi Earthquake

Mantle Downwelling Beneath the Transverse Range

San Jacinto Fault Zone Advisories
&
MT ULF Updates
Released by
GeoSeismic Labs of California

(View MT ULF REPORTS published in October 2004)


(View MT ULF REPORTS published in November 2004)


(View MT ULF REPORTS published in December 2004)


(View MT ULF REPORTS published in January 2005)


(View MT ULF REPORTS published in February 2005)


(View MT ULF REPORTS published in March 2005)


(View MT ULF REPORTS published in April 2005)


(View a previously Published MT ULF REPORT


(View the Currently Published MT ULF REPORT

MT ULF UPDATE: May 1, 2005

Note: The San Jacinto Fault Alert along with Inland Empire advisory continues to stay in effect. There was no infrasonic harmonic activity below 2 Hz on Sunday. The ULF and MT activity level was low to moderate during the past 24 hours. The inferred mean average unclamping level was unchanged during the past 24 hours. The ULF mean average was unchanged. The MT peak reading was measured at 8.8 units of regional lithospheric stress. All daily charts were updated to reflect the latest analysis.

The most recently detected ULF activity was apparently associated with a micro quake epicentered near Running Springs, CA. Also, there were some periods of detected geomagnetic oscillation which appears to be related to crustal stress changes now occurring along the Plate Boundary, at the Cajon Pass.

 01-MAY-2005: 24 Hour Geomagnetic and Magneto-Telluric Graph

MT ULF UPDATE: May 2, 2005

Note: The San Jacinto Fault Alert along with Inland Empire advisory continues to stay in effect. There was no infrasonic harmonic activity below 2 Hz on Monday. The ULF and MT activity level was low to moderate during the past 24 hours. The inferred mean average unclamping level was unchanged during the past 24 hours. The ULF mean average was unchanged. The MT peak reading was measured at 8.9 units of regional lithospheric stress. All daily charts were updated to reflect the latest analysis.

The most recently detected ULF activity was apparently associated with a micro quake epicentered near Running Springs, CA. Also, there were some more detected periods with geomagnetic oscillation which appears to be related to crustal stress changes now occurring along the Plate Boundary, from Big Bear Lake to Anza, CA.

 02-MAY-2005: 24 Hour Geomagnetic and Magneto-Telluric Graph

MT ULF UPDATE: May 3, 2005

Note: The San Jacinto Fault Alert along with Inland Empire advisory continues to stay in effect. There was infrasonic harmonic activity below 2 Hz on Tuesday. The Peak (Crustal) Infrasonic Harmonic Resonant Frequency was measured at 1.83 Hz (-74.61 dBv). The ULF and MT activity level was low to moderate during the past 24 hours. The inferred mean average unclamping level was unchanged during the past 24 hours. The ULF mean average was increased(Positive). The MT peak reading was measured at 8.8 units of regional lithospheric stress. All daily charts were updated to reflect the latest analysis.

The most recently detected ULF activity was associated with a micro quake epicentered near Borrego Springs, CA Also, detected was a single short period with geomagnetic oscillation which appears to be related to crustal stress changes now occurring along the San Jacinto fault zone Near Borrego Springs, CA. Some anomalous Geomagnetic spikes that may be related to a small earthquake epicentered near Big Pine, CA (Eastern Sierras).

 03-MAY-2005: 24 Hour Geomagnetic and Magneto-Telluric Graph

 03-MAY-2005 18:00 - 21:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram

MT ULF UPDATE: May 4, 2005

Note: The San Jacinto Fault Alert along with Inland Empire advisory continues to stay in effect. There was no infrasonic harmonic activity below 2 Hz on Wednesday. The ULF and MT activity level was low during the past 24 hours. The inferred mean average unclamping level was unchanged during the past 24 hours. The ULF mean average was decreased(Negative). The MT peak reading was measured at 8.8 units of regional lithospheric stress. All daily charts were updated to reflect the latest analysis. The most recently detected geomagnetic oscillations appear to be associated with a string of micro quakes epicentered from near Mexicali, Colton, Upland, Quartz Hill and at Pine Mountain Club, CA. The later seismic event was also in the same location as the M3.6 earthquake.

 04-MAY-2005: 24 Hour Geomagnetic and Magneto-Telluric Graph

MT ULF UPDATE: May 5, 2005

Note: The San Jacinto Fault Alert along with Inland Empire advisory continues to stay in effect. There was no infrasonic harmonic activity below 2 Hz on Thursday. The ULF and MT activity level was low to moderate during the past 24 hours. The inferred mean average unclamping level was unchanged during the past 24 hours. The ULF mean average was increased(positive). The MT peak reading was measured at 8.7 units of regional lithospheric stress. All daily charts were updated to reflect the latest analysis.

M3.2 2005/05/06 02:07:13 UT 35.026N 119.183W d:13.5 km ( 12 mi) WSW of Mettler, CA
M4.1 2005/05/06 02:29:09 UT 35.024N 119.184W d:11.2 km ( 12 mi) N of Pine Mountain Club, CA
M3.1 2005/05/06 04:44:21 UT 32.336N 115.174W d:6.9 km ( 5 mi) NW of Guadalupe Victoria, Mexico

The most recently detected high frequency ULF signal bursts appear to be associated with micro quakes epicentered from Malibu to Santa Barbara, CA. The HFB's were also prior to a light aftershock (M4.1) to the April 16, 2005 M5.2 Mettler earthquake. There was an update to a previously released chart   used for the location of all earthquakes epicentered in the region of Pine Mountain Club, CA. It would be best to stay on advisory as we approach a maximum Lunar-Tidal phase angle during the next New Moon on May 8, 2005.

 05-MAY-2005: 24 Hour Geomagnetic and Magneto-Telluric Graph

MT ULF UPDATE: May 6, 2005

Note: The San Jacinto Fault Alert along with Inland Empire advisory continues to stay in effect. There was no infrasonic harmonic activity below 2 Hz on Friday. The ULF and MT activity level was low to moderate during the past 24 hours. The inferred mean average unclamping level was unchanged during the past 24 hours. The ULF mean average was increased(positive). The MT peak reading was measured at 8.8 units of regional lithospheric stress. All daily charts were updated to reflect the latest analysis.

The most recently detected ULF activity appeared to be associated with a micro quake epicentered near Lucerne Valley, CA. There was a sudden impulse which was detected at 13:06 UTC. A long period of low frequency ULF disturbance was observed for several hours after the arrival of the CME. Piezomagnetic activity was increased during the past 24 hours.

 06-MAY-2005: 24 Hour Geomagnetic and Magneto-Telluric Graph
hr>

MT ULF UPDATE: May 7, 2005

Note: The San Jacinto Fault Alert along with Inland Empire advisory continues to stay in effect. There was infrasonic harmonic activity below 2 Hz on Saturday. The Peak (Crustal) Infrasonic Harmonic Resonant Frequency was measured at 1.60 Hz (-75.28 dBv). The ULF and MT activity level was low to moderate during the past 24 hours. The inferred mean average unclamping level was unchanged during the past 24 hours. The ULF mean average was increased(positive). The MT peak reading was measured at 8.9 units of regional lithospheric stress. All daily charts were updated to reflect the latest analysis.

The most recently detected ULF activity appears to be associated with a micro quake epicentered near the "Geysers" in Northern California. Also, ULF activity was observed during a micro quake epicentered near Loma Linda and Randsburg, CA. Piezomagnetic activity was increased during the past 24 hours. As I go to press with this edition an earthquake with a preliminary magnitude 4.1 was epicentered in Northern California near Green Valley, CA. It's inferred that a sudden increase in detected ULF activity from the Geysers may be related to it. An earlier infrasonic harmonic at 1.6 Hz is inferred to also be for Northern California. A small M3.4 earthquake appears to have been epicentered not far from the M4.1 and close to San Francisco Bay, on the Hayward fault. Possibly remote triggered as a result of a combined New Moon (spring tide) induced Lunar-Tidal Maximum Phase Angle, and a step over in crustal stress coming from the Green Valley Fault. The area is in close proximity to the San Andreas and Calaveras faults, and under the influence of high crustal stress that needs to be closely monitored.

 07-MAY-2005: 24 Hour Geomagnetic and Magneto-Telluric Graph

MT ULF UPDATE: May 8, 2005

Note: The San Jacinto Fault Alert along with Inland Empire advisory continues to stay in effect. There was infrasonic harmonic activity below 2 Hz on Sunday. The Peak (Crustal) Infrasonic Harmonic Resonant Frequency was measured at 0.93 Hz (-75.46 dBv). The ULF and MT activity level was moderate during the past 24 hours. The inferred mean average unclamping level was unchanged during the past 24 hours. The ULF mean average was increased(positive). The MT peak reading was measured at 9.1 units of regional lithospheric stress. All daily charts were updated to reflect the latest analysis.

M4.1 2005/05/08 08:43:55 38.378 -122.166 9.6 13 km ( 8 mi) N of Green Valley, CA
M3.4 2005/05/08 10:35:55 37.840 -122.222 6.1 2 km ( 1 mi) NNE of Piedmont, CA
M3.0 2005/05/08 12:08:08 36.883 -121.615 6.0 2 km ( 2 mi) ESE of Aromas, CA

The latest detected period of Geomagnetic oscillation came immediately after a significant geomagnetic shift which appears to be associated with a micro quake epicentered near Pine Mountain Club, CA. The infrasonic harmonic at 0.98 Hz is inferred to mean that seismic activity is moving closer to border region and the Coachella Valley where a micro quake epicentered near Bombay Beach also had a period of geomagnetic oscillation associated with it. The series of quakes started in Northern California after I observed a period with ULF activity at the Geysers. It appears that the new moon induced lunar-tides triggered at least three separate earthquakes(en echelon). Also, seismic activity increased near San Clemente Isl., and at Tres Pinos, CA, which is close to the inferred location of a strong piezomagnetic signal burst   reported on April 5, 2005.

 Point Bonita, Bonita Cove, San Francisco Bay, California
8 May 2005
37.8183° N, 122.5283° W

2005-05-08  03:06 UTC   Sunset
2005-05-08  06:21 UTC   6.44 feet  High Tide

2005/05/08  08:43:55    M4.1  38.378 -122.166   9.6   13 km (  8 mi) N   of Green Valley, CA

2005-05-08  08:48 UTC   New Moon

2005/05/08 10:35:55     M3.4  37.840 -122.222   6.1    2 km (  1 mi) NNE of Piedmont, CA
2005/05/08 12:08:08     M3.0  36.883 -121.615   6.0    2 km (  2 mi) ESE of Aromas, CA

2005-05-08  13:06 UTC   Sunrise
2005-05-08  13:10 UTC  -0.92 feet  Low Tide

 08-MAY-2005: 24 Hour Geomagnetic and Magneto-Telluric Graph

The New Moon and Associated

Spring Tides

Advisory is Now in Effect!

MT ULF UPDATE: May 9, 2005

Note: The San Jacinto Fault Alert along with Inland Empire advisory continues to stay in effect. There was no infrasonic harmonic activity below 2 Hz on Monday. The ULF and MT activity level was moderate during the past 24 hours. The inferred mean average unclamping level was unchanged during the past 24 hours. The ULF mean average was increased(positive). The MT peak reading was measured at 8.6 units of regional lithospheric stress. All daily charts were updated to reflect the latest analysis.

M3.1 2005/05/09 13:08:36 35.930 -120.477 10.3 5 km ( 3 mi) NW of Parkfield, CA
M3.2 2005/05/09 17:48:11 34.802 -116.281 5.1 14 km ( 9 mi) NW of Ludlow, CA
M3.0 2005/05/09 21:48:37 32.434 -115.312 6.0 25 km ( 15 mi) NW of Guadalupe Victoria, Mexico
M4.4 2005/05/09 22:37:39 38.786 -122.754 1.2 5 km ( 3 mi) ESE of The Geysers, CA
M3.0 2005/05/10 04:01:32 32.443 -115.310 6.0 25 km ( 16 mi) NW of Guadalupe Victoria, Mexico
M3.1 2005/05/10 04:19:21 32.441 -115.314 6.0 25 km ( 16 mi) NW of Guadalupe Victoria, Mexico

The most recently observed ULF activity was from Near Mexicali in Northern Baja Mexico where a swarm was observed later in the day. Obviously, there is a major crustal stress nucleation from both the north and south that is greatly affecting the number of earthquakes epicentered in Southern California along the plate boundary. So, stay on alert.

MT ULF UPDATE: May 10, 2005

Note: The San Jacinto Fault Alert along with Inland Empire advisory continues to stay in effect. There was no infrasonic harmonic activity below 2 Hz on Tuesday. The ULF and MT activity level was moderate to high during the past 24 hours. The inferred mean average unclamping level was unchanged during the past 24 hours. The ULF mean average was significantly increased(positive). The MT peak reading was measured at 10.2 units of regional lithospheric stress. All daily charts were updated to reflect the latest analysis.

M3.2 2005/05/10 05:18:17 32.440 -115.312 6.0 25 km ( 16 mi) NW of Guadalupe Victoria, Mexico
M4.4 2005/05/10 20:21:10 40.946 -121.757 18.0 11 km ( 7 mi) NW of Burney, CA

Today's activity was variable and contained some of the most significant observed anomalies of the past several months, when a strong piezomagnetic burst was observed immediately after a M4.4 earthquake epicentered in Northern California's Southern Cascades Range in close proximity to three major volcanic centers, including Mt. Shasta, Lassen Peak (last erupted between 1914 and 1917) and Medicine Lake, CA. There were two other strong Piezomagnetic Signal Bursts, which appear to be associated with the San Andreas Fault Zone in both Central and Southern California. I now believe it indicates the region from San Jose to Parkfield, CA is undergoing high crustal stress along the Pacific and North American Plate Boundary. So, continue to stay on alert.

 10-MAY-2005: 24 Hour Geomagnetic and Magneto-Telluric Graph

 10-MAY-2005: 24 Hour Geomagnetic Field Anomalies Report

MT ULF UPDATE: May 11, 2005

Note: The San Jacinto Fault Alert along with Inland Empire advisory continues to stay in effect. There was no infrasonic harmonic activity below 2 Hz on Wednesday. The ULF and MT activity level was moderate to high during the past 24 hours. The inferred mean average unclamping level was unchanged during the past 24 hours. The ULF mean average was decreased(negative). The MT peak reading was measured at 10.0 units of regional lithospheric stress. All daily charts were updated to reflect the latest analysis.

M3.1 2005/05/11 12:31:02 32.451 -115.312 6.0 26 km ( 16 mi) NW of Guadalupe Victoria, Mexico

There was one more detected piezomagnetic burst very early in the period which was associated with high levels of crustal stress along the Pacific and North American Plate Boundary in Southern California.

 11-MAY-2005: 24 Hour Geomagnetic and Magneto-Telluric Graph

MT ULF UPDATE: May 12, 2005

Note: The San Jacinto Fault Alert along with Inland Empire advisory continues to stay in effect. There was no infrasonic harmonic activity below 2 Hz on Thursday. The ULF and MT activity level was low to moderate during the past 24 hours. The inferred mean average unclamping level was unchanged during the past 24 hours. The ULF mean average was significantly decreased(negative). The MT peak reading was measured at 8.9 units of regional lithospheric stress. All daily charts were updated to reflect the latest analysis.

M3.2 2005/05/12 22:01:20 34.845 -116.324 4.8 20 km ( 13 mi) NW of Ludlow, CA

There was one period with moderate ULF activity which appears to be associated with the ECSZ and the Mojave Desert Block. So, continue to stay on alert.

 12-MAY-2005: 24 Hour Geomagnetic and Magneto-Telluric Graph

MT ULF UPDATE: May 13, 2005

Note: The San Jacinto Fault Alert along with Inland Empire advisory continues to stay in effect. There was no infrasonic harmonic activity below 2 Hz on Friday. The ULF and MT activity level was low to moderate during the past 24 hours. The inferred mean average unclamping level was higher during the past 24 hours and was last exceeded in early January 2005. The ULF mean average was decreased(negative). The MT peak reading was measured at 9.8 units of regional lithospheric stress. The MT mean average reading was 8.5 units of regional lithospheric stress.

M3.5 2005/05/13 17:20:30 32.339 -115.187 1.8 9 km ( 6 mi) NW of Guadalupe Victoria, Mexico

All daily charts were updated to reflect the latest analysis.

There was a significant increase in piezomagnetic activity which appears to be associated with the earthquakes epicentered in Northern Baja CA, Mexico. Also, ULF activity including a high frequency ULF burst were observed coming from near Borrego Springs, CA. The MT mean average chart is now headed above 8.5 units. There is now a geo-effective CME coming towards Earth, which was generated by today's strong M8 Xray Solar Flare. The divergent plate boundary in the California/Mexico border region may become greatly affected by the arrival of the CME and any subsequential storming incidents. So, continue to stay on alert.

Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 134 Issued at 0245Z on 14 May 2005
This report is compiled from data received at SWO on 13 May
A.  Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
 1613 1657 1728  0759 N12E12 M8.0  2b 420    2900   II/IV           
B.  Proton Events:  None
C.  Geomagnetic Activity Summary:  The geomagnetic field ranged from
quiet to minor storm levels.
D.  Stratwarm:  None
E.  Daily Indices: (real-time preliminary/estimated values)
10 cm 126  SSN 100  Afr/Ap 025/027   X-ray Background B2.7
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 1.4e+06   GT 10 MeV 2.7e+04 p/(cm2-ster-day)
(GOES-11 satellite synchronous orbit W114 degrees)
Daily Electron Fluence
GT 2 MeV 1.40e+08 e/(cm2-ster-day)
(GOES-12 satellite synchronous orbit W76 degrees)
3 Hour K-indices:
Boulder 5 5 5 2 3 4 3 3 Planetary 5 5 5 3 3 4 3 2 
F.  Comments:  The Afr index reported in Part E is estimated from
Boulder observations. The greater than 2 MeV electron fluence at
geosynchronous orbit was moderate.

 13-MAY-2005: 24 Hour Geomagnetic and Magneto-Telluric Graph

 13-MAY-2005 18:00 - 21:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram

MT ULF UPDATE: May 14, 2005

Note: The San Jacinto Fault Alert along with Inland Empire advisory continues to stay in effect. There was infrasonic harmonic activity below 2 Hz on Saturday. The Peak (Crustal) Infrasonic Harmonic Resonant Frequency was measured at 1.73 Hz (-73.50 dBv). The ULF and MT activity level was low to moderate during the past 24 hours. The inferred mean average unclamping level was unchanged. The ULF mean average was decreased(negative). The MT peak reading was measured at 9.0 units of regional lithospheric stress. The MT mean average reading was at 8.4 units of regional lithospheric stress.

M3.1 2005/05/14 10:32:27 32.419 -115.299 3.0 23 km ( 14 mi) NW of Guadalupe Victoria, Mexico
M3.1 2005/05/14 10:53:20 37.704 -121.961 11.0 4 km ( 3 mi) WSW of Dublin, CA

All daily charts were updated to reflect the latest analysis.

The effects the sudden impulse shockwave from the geo-efective CME (02:42 UTC) are beginning to be detected, just as the 24 hour reporting period has ended. The seismicity in Southern California and Baja Mexico may now become greatly affected by any subsequential sub-storming incidents.
The initial official report that I received was:

Space Weather Message Code: SUMSUD
Serial Number: 65
Issue Time: 2005 May 15 0253 UTC


SUMMARY: Geomagnetic Sudden Impulse
Observed: 2005 May 15 0238 UTC
Deviation: 67 nT
Station: Boulder

However, the timing for first detection is approximately ten minutes earlier for my station. Apparently, it must have hit the Pacific Plate first, and would be closer to the impact zone. Earlier this morning, I observed the dip compass needle moving very slightly up and down. No doubt, a result of the intense storming now occurring around the planet. Infrasonics appear to be on the rise of importance with the detection of some strong infrasonic spectral components on the tracking filter. So, continue to stay on alert, as the effects of the solar shockwave's sudden impulse can greatly affect the level of seismic activity within a short period of time, upon its arrival.

 14-MAY-2005: 24 Hour Geomagnetic and Magneto-Telluric Graph

 14-MAY-2005 15:00 - 18:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram

 14-MAY-2005 21:00 - 23:59 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram

MT ULF UPDATE: May 15, 2005

Note: The San Jacinto Fault Alert along with Inland Empire advisory continues to stay in effect. There was infrasonic harmonic activity below 2 Hz on Sunday. The Peak (Crustal) Infrasonic Harmonic Resonant Frequency was measured at 1.99 Hz (-76.96 dBv) along with a fundamental harmonic at 0.94 Hz (-76.96 dBv), which is inferred to be for the Anza, CA region. The ULF and MT activity level was moderate during the past 24 hours. The inferred mean average unclamping level was slightly higher. The ULF mean average was decreased(negative). The MT peak reading was measured at 9.1 units of regional lithospheric stress. The MT mean average reading was at 8.4 units of regional lithospheric stress.

M3.2 2005/05/16 00:54:20 40.945 -125.608 5.0 120 km ( 75 mi) WNW of Ferndale, CA
M4.4 2005/05/16 07:24:37 35.928 -120.478 10.0 5 km ( 3 mi) NW of Parkfield, CA

All daily charts were updated to reflect the latest analysis.

The geo-storm is apparently still affecting the level of seismic activity along the plate boundary. A M4.4 earthquake was epicentered near Parkfield, CA. The infrasonic indicators are becoming quite interesting to observe and need to be monitored very closely. Another period with a strong harmonic was detected late in the reporting period.

 15-MAY-2005: 24 Hour Geomagnetic and Magneto-Telluric Graph

 16-MAY-2005 00:00 - 03:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram

MT ULF UPDATE: May 16, 2005

Note: The San Jacinto Fault Alert along with Inland Empire advisory continues to stay in effect. A short term seismic advisory was issued for both South-Central and Southern California and Eastern California from Long Valley to the Garlock fault. A short term alert was issued for the Imperial and San Jacinto faults. A short term seismic alert was also issued for the Mojave Desert Block from Ludlow to Ridgecrest, CA, and is in effect until further notice.

There was strong infrasonic harmonic resonant activity below 2 Hz on Monday. The Peak (Crustal) Infrasonic Harmonic Resonant Frequency was measured at 1.46 Hz (-70.53 dBv). The ULF and MT activity level was low to moderate during the past 24 hours. The inferred mean average unclamping level was slightly higher. The ULF mean average was unchanged. The MT peak reading was measured at 8.9 units of regional lithospheric stress. The MT mean average reading was at 8.3 units of regional lithospheric stress.

M3.2 2005/05/16 17:34:00 32.422 -115.297 28.6 23 km ( 14 mi) NW of Guadalupe Victoria, Mexico
M3.0 2005/05/16 19:38:43 35.938 -120.490 10.0 7 km ( 4 mi) NW of Parkfield, CA
M3.2 2005/05/16 19:50:52 35.938 -120.487 10.2 6 km ( 4 mi) NW of Parkfield, CA

All daily charts were updated to reflect the latest analysis.

The geo-storm's after-effects have increased seismic activity along the plate boundary. A couple of small earthquakes were epicentered near Parkfield, CA. The infrasonic resonant harmonic activity accelerated during the past 24 hours. A long period with strong harmonic energy was detected. It is inferred that the strong infrasonics are related to a rise in deep crustal stress along the Pacific & North American Plate Boundary in Southern California. So, continue to stay on alert.

 16-MAY-2005: 24 Hour Geomagnetic and Magneto-Telluric Graph

 16-MAY-2005 15:00 - 18:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram

MT ULF UPDATE: May 17, 2005

Note: The San Jacinto Fault Alert along with Inland Empire advisory continues to stay in effect. A short term seismic advisory was issued yesterday for both South-Central and Southern California and Eastern California from Long Valley to the Garlock fault. A short term alert was issued for the Imperial and San Jacinto faults. A short term seismic alert was also issued for the Mojave Desert Block from Ludlow to Ridgecrest, CA, and is in effect until further notice. Additionally, the Helendale fault was placed on alert after the observation of increased MT activity coming from the Big Bear Lake region.

There was strong infrasonic harmonic resonant activity below 2 Hz on Tuesday. The Peak (Crustal) Infrasonic Harmonic Resonant Frequency was measured at 1.78 Hz (-71.02 dBv). The ULF and MT activity level was low to moderate during the past 24 hours. The inferred mean average unclamping level was lower.

M3.2 2005/05/17 09:09:18 35.667 -121.069 6.0 11 km ( 7 mi) ENE of San Simeon, CA
M3.1 2005/05/17 16:00:38 38.227 -117.874 7.3 20 km ( 12 mi) ESE of Tonopah Junction, NV
M3.0 2005/05/18 02:16:12 31.747 -115.739 6.9 38 km ( 23 mi) N of Lázaro Cárdenas, Mexico

I detected an MT disturbance at the same time as that for the beginning of the Isla Vista / Santa Barbara offshore seismic swarm. The infrasonic resonant harmonic activity continues to be high. A period with strong harmonic energy was detected. It is inferred that the strong infrasonics are related to a rise in deep crustal stress along the Pacific & North American Plate Boundary in Southern California. So, continue to stay on alert.

 17-MAY-2005 12:00 - 15:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram

MT ULF UPDATE: May 18, 2005

Note: The San Jacinto Fault Alert along with Inland Empire advisory continues to stay in effect. There was strong infrasonic harmonic resonant activity below 2 Hz on Wednesday. The Peak (Crustal) Infrasonic Harmonic Resonant Frequency was measured at 1.30 Hz (-70.36 dBv). The ULF and MT activity level was low to moderate during the past 24 hours. The inferred mean average unclamping level was unchanged.

It is inferred that the strong infrasonics are related to a rise in deep crustal stress along the Pacific & North American Plate Boundary in Southern California. So, continue to stay on alert.

 18-MAY-2005 15:00 - 18:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram

MT ULF UPDATE: May 19, 2005

Note: The San Jacinto Fault Alert along with Inland Empire advisory continues to stay in effect. There was strong infrasonic harmonic resonant activity below 2 Hz on Thursday. There was a strong (Crustal) Infrasonic Harmonic Resonant Frequency measured at 1.18 Hz. The Peak (Crustal) Infrasonic Harmonic Resonant Frequency was measured at 0.92 Hz (-68.77 dBv). The ULF and MT activity level was low during the past 24 hours. The inferred mean average unclamping level was higher. The ULF mean average was increased (positive). THe MT peak reading was measured at 8.5 units of regional lithospheric stress. THe MT mean average was measured at 8.0 units.

M3.0 2005/05/19 06:40:28 32.163 -115.864 6.0 65 km ( 41 mi) S of Ocotillo, CA

It is inferred that the strong infrasonics are related to a rise in deep crustal stress along the Pacific & North American Plate Boundary in Southern California. The current infrasonics are inferred to be associated with high crustal stress along the San Andreas fault zone from Southern California to Central California. So, continue to stay on alert.

 19-MAY-2005 18:00 - 21:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram

 20-MAY-2005 00:00 - 03:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram

MT ULF UPDATE: May 20, 2005

Note: The San Jacinto Fault Alert along with Inland Empire advisory continues to stay in effect. There was strong infrasonic harmonic resonant activity below 2 Hz on Friday. The Peak (Crustal) Infrasonic Harmonic Resonant Frequency was measured at 1.27 Hz (-70.05 dBv). The ULF and MT activity level was low to moderate during the past 24 hours. The inferred mean average unclamping level was slightly higher. The ULF mean average was decreased (negative). The MT peak reading was measured at 8.5 units of regional lithospheric stress. THe MT mean average was measured at 7.8 units.

M4.1 2005/05/21 00:39:32 33.225 -116.214 14.4 12 km ( 7 mi) NW of Ocotillo Wells, CA

All daily charts were updated to reflect the latest analysis.

General Discussion:
There was a period of strong infrasonic resonant harmonic activity, which is inferred to be associated with the San Jacinto fault in the Inland Empire. Today's M4.1 Ocotillo Wells earthquake was preceded by a long period with an absence of background ULF activity. It's now believed that the suppression incident is an indication, or precursor for a strong earthquake epicentered within the Inland Empire (San Bernardino County). There were two micro quakes which fell during the period of maximum suppression. One was epicentered near Moreno Valley, the other was epicentered near Loma Linda, CA. The activity is consistent with recent reports of a high number of "lost and found" pet ads published in a Riverside, CA newspaper. So, everything appears to still be on target for the current San Jacinto fault zone alert.

Statement Summary:
It is inferred that the strong infrasonics are related to a rise in deep crustal stress along the Pacific & North American Plate Boundary in Southern California. The current infrasonics are inferred to be associated with high crustal stress along the San Andreas fault zone from Southern California to Central California. So, continue to stay on alert.

 20-MAY-2005: 24 Hour Geomagnetic Field Anomalies Report,
including the Ocotillo Wells, CA M4.1 precursor

 20-MAY-2005: 24 Hour Geomagnetic and Magneto-Telluric Graph

 20-MAY-2005 15:00 - 18:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram

 20-MAY-2005 18:00 - 21:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram

 20-MAY-2005 21:00 - 23:59 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram

MT ULF UPDATE: May 21, 2005

Note: The San Jacinto Fault Alert along with Inland Empire advisory continues to stay in effect. There was strong infrasonic harmonic resonant activity below 2 Hz on Saturday. The Peak (Crustal) Infrasonic Harmonic Resonant Frequency was measured at 1.18 Hz (-69.62 dBv). The ULF and MT activity level was low to moderate during the past 24 hours. The inferred mean average unclamping level was lower. The ULF mean average was decreased (negative). The MT peak reading was measured at 8.7 units of regional lithospheric stress. THe MT mean average was measured at 7.7 units.

M3.4 2005/05/22 10:35:27 40.434 -125.501 4.9 104 km ( 64 mi) W of Petrolia, CA

All daily charts were updated to reflect the latest analysis.

General Discussion:
Infrasonic resonant harmonic activity, according to its fundamental frequency, shifted to north of the Mojave Desert block. where several periods with moderate level appeared to be associated with the Owens Valley region from near Bishop, CA to as far south as the Coso Volcanic Center near China Lake, CA. There was another ULF suppression incident during the early evening hours, which lasted until about midnight local time. I believe it's an indication that the Mojave Desert Block is building high levels of crustal stress from Ludlow to Ridgecrest, CA where it is inferred that a new plate boundary is in its early formation stage along the West Calico-Blackwater-Little Lake fault system lineament which is attempting to circumvent the "Big Bend" along the San Andreas fault. There were several micro quakes which fell during the period of maximum ULF suppression: A swarm was observed north of Bishop, CA. a micro quake was epicentered near Louisiana Butte (Coso Volcanic Center), and there were two micro quakes epicentered near San Simeon, CA. In Southern California, there ware two micro quakes which were epicentered near Borrego Springs and Anza, CA.

Statement Summary:
It is inferred that the strong infrasonics are related to a rise in deep crustal stress along the Pacific & North American Plate Boundary in Southern California. The current infrasonics are inferred to be associated with high crustal stress along the San Andreas fault zone from Southern California to Central California and may also now be affecting the Owens Valley from Bishop to Coso Junction, CA as it nucleates north of the Mojave Desert Block and west along the Garlock fault zone towards the South-Central Coastal region near San Simeon, CA via the Pine Mountain-Big Pine faults. So, continue to stay on alert.

The Full Moon and Associated

Spring Tides

Advisory is Now in Effect!

 21-MAY-2005: 24 Hour Geomagnetic and Magneto-Telluric Graph

 21-MAY-2005 18:00 - 21:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram

 21-MAY-2005 21:00 - 23:59 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram

 22-MAY-2005 03:00 - 06:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram

MT ULF UPDATE: May 22, 2005

Note: The San Jacinto Fault Alert along with Inland Empire advisory continues to stay in effect. There was strong infrasonic harmonic resonant activity below 2 Hz on Sunday. The Peak (Crustal) Infrasonic Harmonic Resonant Frequency was measured at 1.50 Hz (-70.90 dBv). The ULF and MT activity level was low to moderate during the past 24 hours. The inferred mean average unclamping level was unchanged. The ULF mean average was decreased (negative). The MT peak reading was measured at 8.7 units of regional lithospheric stress. THe MT mean average was measured at 7.7 units.

All daily charts were updated to reflect the latest analysis.

General Discussion:
Infrasonic resonant harmonic activity, spanned from Long Valley to as far south as the San Andreas fault in Southern California. There was another ULF suppression incident during the late afternoon, which lasted until early evening. There was a micro quake which fell during the period of maximum ULF suppression which was epicentered north of Los Angeles, CA near Valle Vista, CA.

Statement Summary:
It is inferred that the strong infrasonics are related to a rise in deep crustal stress along the Pacific & North American Plate Boundary in Southern California. The current infrasonics are inferred to be associated with high crustal stress along the San Andreas fault zone from Southern California to Central California and may also now be affecting the Owens Valley from Bishop to Coso Junction, CA as it nucleates north of the Mojave Desert Block and west along the Garlock fault zone towards the South-Central Coastal region near San Simeon, CA via the Pine Mountain-Big Pine faults. Also, appears to be affecting faults north of Los Angeles, CA. The Full Moon arrives on Monday with a maximum lunar-tidal phase angle early Tuesday morning, before sunrise. So, continue to stay on alert.

The Full Moon and Associated

Spring Tides

Advisory is Now in Effect!

 22-MAY-2005: 24 Hour Geomagnetic and Magneto-Telluric Graph

 22-MAY-2005 18:00 - 21:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram

MT ULF UPDATE: May 23, 2005

Note: The San Jacinto Fault Alert along with Inland Empire advisory continues to stay in effect. There was strong infrasonic harmonic resonant activity below 2 Hz on Monday. The Peak (Crustal) Infrasonic Harmonic Resonant Frequency was measured at 1.04 Hz (-69.51 dBv). The ULF and MT activity level was low to moderate during the past 24 hours. The inferred mean average unclamping level was unchanged. The ULF mean average was decreased(negative) and reached its most negative point since November 8, 2004. The MT peak reading was measured at 8.6 units of regional lithospheric stress. THe MT mean average was measured at 7.7 units.

M3.0 2005/05/23 11:26:40 32.097 -115.550 6.0 47 km ( 29 mi) WSW of Guadalupe Victoria, Mexico
M4.1 2005/05/23 19:59:58 35.669 -121.087 9.0 10 km ( 6 mi) ENE of San Simeon, CA

All daily charts were updated to reflect the latest analysis.

Epilog:
As stated beginning with the May 21, 2005 MT ULF Report, "The current infrasonics are inferred to be associated with high crustal stress along the San Andreas fault zone from Southern California to Central California and may also now be affecting the Owens Valley from Bishop to Coso Junction, CA as it nucleates north of the Mojave Desert Block and west along the Garlock fault zone towards the South-Central Coastal region near San Simeon, CA via the Pine Mountain-Big Pine faults."   Editors Note: Where today's M4.1 earthquake was epicentered.

General Discussion:
Infrasonic resonant harmonic activity spanned from the Mojave Desrt Block at the San Andreas fault in Southern California to as far south as Northern Baja California, Mexico. There was one more ULF suppression incident during the mid-afternoon, which began at 22:34 UTC, which was in effect with a duration total of one hour and forty minutes. The Full moon arrived at 20:20 UTC, which was 20 minutes after a M4.1 earthquake epicentered near San Simeon, CA. Also, the typical scattering of infrasonic waves preceded the earthquake along with strong infrasonic harmonic activity at close to the frequency inferred for the San Andreas fault and the Southern edge of the Mojave Desert Block. There were at least two high frequency ULF signal bursts detected during the past 24 hours. One of them began seven minutes after the M4.1 at San Simeon, CA. A second burst was detected approximately eight minutes prior to M2.8 which was epicentered in Northern Baja Mexico near the divergent Plate Boundary.

Statement Summary:
It is inferred that the strong infrasonics are related to a rise in deep crustal stress along the Pacific & North American Plate Boundary in Southern California. The current infrasonics are inferred to be associated with high crustal stress along the San Andreas fault zone from Southern California to Central California and may also now be affecting the Owens Valley from Bishop to Coso Junction, CA as it nucleates north of the Mojave Desert Block and west along the Garlock fault zone towards the South-Central Coastal region near San Simeon, CA via the Pine Mountain-Big Pine faults. Also, appears to be affecting faults north of Los Angeles, CA. Current strong infrasonic activity appears to be moving further south towards the border region with Mexico. The Full Moon arrived on Monday with a maximum lunar-tidal phase angle to occur early Tuesday morning, before sunrise. So, continue to stay on alert.

The Full Moon and Associated

Spring Tides

Advisory is Now in Effect!

 23-MAY-2005: 24 Hour Geomagnetic and Magneto-Telluric Graph

 23-MAY-2005 15:00 - 18:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram

 23-MAY-2005 18:00 - 21:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram

 23-MAY-2005 21:00 - 23:59 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram

 24-MAY-2005 00:00 - 03:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram

MT ULF UPDATE: May 24, 2005

Note: The San Jacinto Fault Alert along with Inland Empire advisory continues to stay in effect. There was very strong infrasonic harmonic resonant activity below 2 Hz on Tuesday. The Peak (Crustal) Infrasonic Harmonic Resonant Frequency was measured at 0.83 Hz (-68.30 dBv). The ULF and MT activity level was low to moderate during the past 24 hours. The inferred mean average unclamping level was unchanged. The ULF mean average was unchanged. The MT peak reading was measured at 9.9 units of regional lithospheric stress. The MT mean average was measured at 8.1 units.

M2.8 2005/05/24 10:21:54 33.504 -116.466 5.5 20 km ( 12 mi) ESE of Anza, CA
M3.5 2005/05/24 17:06:20 35.677 -121.090 0.0 10 km ( 6 mi) ENE of San Simeon, CA
M3.5 2005/05/25 01:41:44 32.195 -115.341 0.4 24 km ( 15 mi) WSW of Guadalupe Victoria, Mexico

All daily charts were updated to reflect the latest analysis.

Epilog:
As stated in the May 23, 2005 MT ULF Report, "Current strong infrasonic activity appears to be moving further south towards the border region with Mexico."   Editors Note: Where today's M3.5 earthquake was epicentered in Baja California, Mexico.

General Discussion:
Infrasonic resonant harmonic activity became very strong during the past 24 hours. The activity in the range of frequency from 0.84 to 1.27 Hz was particularly active and is inferred to span from Central California to the Gulf of California in Northern Baja California, Mexico. There were two more ULF suppression incidents, one prior to midnight local time and the other during late afternoon, which began at 23:10 UTC and was in effect for a duration total of one hour and twenty-eight minutes. There was a strong infrasonic resonant harmonic (15:00 - 17:00 UTC) which preceded a M3.5 earthquake epicentered near San Simeon, CA. A typical scattering of infrasonic waves followed the earthquake along with a dominant upper level infrasonic harmonic at 5Hz, which was detected on the active tracking filter between 18:30 and 21:00 UTC. The upper level harmonic is inferred to be associated with a continuous buildup of high lithospheric stress within the "Anza Seismic Gap" at Toro Peak that appears to be sensitive to major crustal changes at depth in Southern California, especially those that are associated with the Pacific & North American plate boundary from the Salton Sea, Coachella and Imperial Valleys to the Cajon Pass region, and west to the Elsinore fault zone. Infrasonic activity lowered to near 0.83 Hz during the early evening hours (00:00 - 03:00 UTC) which is inferred to be associated with the border region between Mexicali and San Felipe, Baja California, Mexico.

Statement Summary:
It is inferred that the strong infrasonics are related to a rise in deep crustal stress along the Pacific & North American Plate Boundary in Southern California. The current infrasonics are inferred to be associated with high crustal stress along the San Andreas fault zone from Southern California to Central California and may also now be affecting the Owens Valley from Bishop to Coso Junction, CA as it nucleates north of the Mojave Desert Block and west along the Garlock fault zone towards the South-Central Coastal region near San Simeon, CA via the Pine Mountain-Big Pine faults. Also, appears to be affecting faults north of Los Angeles, CA. Current strong infrasonic activity appears to also be moving southeast towards the border region with Mexico, and the Gulf of California. It's also likely that the strong resonant harmonic activity could move north again, and significantly affect Southern California. So, continue to stay on alert.

The Full Moon and Associated

Spring Tides

Advisory is Now in Effect!

 24-MAY-2005: 24 Hour Geomagnetic and Magneto-Telluric Graph

 24-MAY-2005 15:00 - 18:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram

 24-MAY-2005 18:00 - 21:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram

 24-MAY-2005 21:00 - 23:59 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram

 25-MAY-2005 00:00 - 03:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram

MT ULF UPDATE: May 25, 2005

Note: The San Jacinto Fault Alert along with Inland Empire advisory continues to stay in effect. There was extremely strong infrasonic harmonic resonant activity below 2 Hz on Wednesday. The Peak (Crustal) Infrasonic Harmonic Resonant Frequency was measured at 0.83 Hz (-67.31 dBv). The ULF and MT activity level was low to moderate during the past 24 hours. The inferred mean average unclamping level was unchanged. The ULF mean average was unchanged. The MT peak reading was measured at 8.6 units of regional lithospheric stress. The MT mean average was measured at 7.9 units.

All daily charts were updated to reflect the latest analysis.



General Discussion:
Infrasonic resonant harmonic activity was extremely strong during the past 24 hours. The activity in the range of frequency from 0.84 to 1.27 Hz was particularly active and is inferred to span from Central California to the Gulf of California in Northern Baja California, Mexico. There were two more ULF suppression incidents, one prior to midnight local time and the other during mid afternoon, which began at 22:43 UTC and was in effect for a duration total of one hour and eight minutes. There was a strong infrasonic resonant harmonic (12:00 - 17:00 UTC) which appears to be related to a micro quake epicentered near Piru, CA.

Statement Summary:
It is inferred that the strong infrasonics are related to a rise in deep crustal stress along the Pacific & North American Plate Boundary in Southern California. The current infrasonics are inferred to be associated with high crustal stress along the San Andreas fault zone from Southern California to Central California and may also now be affecting the Owens Valley from Bishop to Coso Junction, CA as it nucleates north of the Mojave Desert Block and west along the Garlock fault zone towards the South-Central Coastal region near San Simeon, CA via the Pine Mountain-Big Pine faults. Also, appears to be affecting faults north of Los Angeles, CA with the latest activity near Piru, CA. Current strong infrasonic activity appears to also be moving southeast towards the border region with Mexico, and the Gulf of California. It's also likely that the strong resonant harmonic activity could move north again, and significantly affect Southern California. So, continue to stay on alert.

 25-MAY-2005: 24 Hour Geomagnetic and Magneto-Telluric Graph

 24-MAY-2005 12:00 - 15:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram

 24-MAY-2005 15:00 - 18:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram

 24-MAY-2005 18:00 - 21:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram

MT ULF UPDATE: May 26, 2005

Note: The San Jacinto Fault Alert along with Inland Empire advisory continues to stay in effect. There was infrasonic harmonic resonant activity below 2 Hz on Thursday. The Peak (Crustal) Infrasonic Harmonic Resonant Frequency was measured at 1.74 Hz (-72.71 dBv). The ULF and MT activity level was low to moderate during the past 24 hours. The inferred mean average unclamping level was unchanged. The ULF mean average was decreased (negative). The MT peak reading was measured at 8.7 units of regional lithospheric stress. The MT mean average was measured at 7.9 units.

All daily charts were updated to reflect the latest analysis.



General Discussion:
Infrasonic resonant harmonic activity was strong during the past 24 hours. There was activity at 0.84 Hz and from 1.6 Hz to 1.9 Hz. California, Mexico. There were two more ULF suppression incidents, one prior to midnight local time and the other during mid afternoon, which began at 22:24 UTC and was in effect for a duration total of nearly two hours. It's apprently related to the San Jacinto fault from Ocotillo Wells to north of Borrego Springs, CA.

Statement Summary:
It is inferred that the strong infrasonics are related to a rise in deep crustal stress along the Pacific & North American Plate Boundary in Southern California. The current infrasonics are inferred to be associated with high crustal stress along the San Andreas fault zone from Southern California to Central California and may also now be affecting the Owens Valley from Bishop to Coso Junction, CA as it nucleates north of the Mojave Desert Block and west along the Garlock fault zone towards the South-Central Coastal region near San Simeon, CA via the Pine Mountain-Big Pine faults. Also, appears to be affecting faults north of Los Angeles, CA with the latest activity near Piru, CA. Current strong infrasonic activity appears to also be moving southeast towards the border region with Mexico, and the Gulf of California. It's also likely that the strong resonant harmonic activity could move north again, and significantly affect Southern California. The San Jacinto fault zone is apparently the focus of the latest detected anomalies. So, continue to stay on alert.

Critical Reminder:
All donations should be sent in to the lab prior to next June 15th 2005. Your contributions will be used to offset the cost of maintaining the website, which is currently over one thousand dollars per year. It's your web-site, too. Your support is essential to it being in operation 24/7. Prior to 2004, I went on a "summer schedule." If I get the proper financial support for maintaining the release of the vital information provided here, I may not have to resort to a reduced schedule this coming Summer. I prefer to give out the information to everyone without any restrictions. Those who can afford one, should sponser my pioneering efforts with a small donation, which is entirely appreciated. I believe this to be the fairest method for all.

Finally, I Hope that everyone has a nice and safe Memorial Day holiday weekend!  -FRANK CONDON

 26-MAY-2005: 24 Hour Geomagnetic and Magneto-Telluric Graph

MT ULF UPDATE: May 27, 2005

Note: The San Jacinto Fault Alert along with Inland Empire advisory continues to stay in effect. There was infrasonic harmonic resonant activity below 2 Hz on Friday. The Peak (Crustal) Infrasonic Harmonic Resonant Frequency was measured at 1.62 Hz (-71.48 dBv). The ULF and MT activity level was low to moderate during the past 24 hours. The inferred mean average unclamping level was unchanged. The ULF mean average was decreased (negative). The MT peak reading was measured at 8.7 units of regional lithospheric stress. The MT mean average was measured at 8.0 units.

All daily charts were updated to reflect the latest analysis.

Recent Solar Flare Activity:

Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 148 Issued at 0245Z on 28 May 2005
This report is compiled from data received at SWO on 27 May
A.  Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
 0000 0000 0025                                        IV           
 1153 1230 1240  0767 S08E04 M1.1  2f 140    130                    
 2057 2139 2204  0767 S06E13 C8.6  1f 75               IV         
 

Solar Shockwave: Sudden Impulse Warning:

SUMMARY: Geomagnetic Sudden Impulse
Observed: 2005 May 28 0444 UTC
Deviation: 16 nT
Station: Boulder

General Discussion:
Infrasonic resonant harmonic activity was moderate during the past 24 hours. There was activity at 0.94 Hz, 1.12 Hz and from 1.3 Hz to 1.65 Hz. There were two more ULF suppression incidents, one prior to midnight local time and the other during mid-afternoon, which began at 22:07 UTC and was in effect for a total duration of approximately two hours. It's apparently related to the San Jacinto fault zone from Ocotillo Wells to north of Borrego Springs, CA, including the Anza Seismic Gap.

Statement Summary:
It is inferred that the strong infrasonics are related to a rise in deep crustal stress along the Pacific & North American Plate Boundary in Southern California. The current infrasonics are inferred to be associated with high crustal stress along the San Andreas fault zone from Southern California to Central California and may also now be affecting the Owens Valley from Bishop to Coso Junction, CA as it nucleates north of the Mojave Desert Block and west along the Garlock fault zone towards the South-Central Coastal region near San Simeon, CA via the Pine Mountain-Big Pine faults. Also, appears to be affecting faults north of Los Angeles, CA with the latest activity near Piru, CA. Current strong infrasonic activity appears to also be moving southeast towards the border region with Mexico, and the Gulf of California. It's also likely that the strong resonant harmonic activity could move north again, and significantly affect Southern California. The San Jacinto fault zone and the Anza Seismic Gap is the focus of the latest detected anomalies. So, continue to stay on alert.

Critical Reminder:
All donations should be sent in to the lab prior to next June 15th 2005. Your contributions will be used to offset the cost of maintaining the website, which is currently over one thousand dollars per year. It's your web-site, too. Your support is essential to it being in operation 24/7. Prior to 2004, I went on a "summer schedule." If I get the proper financial support for maintaining the release of the vital information provided here, I may not have to resort to a reduced schedule this coming Summer. I prefer to give out the information to everyone without any restrictions. Those who can afford one, should sponser my pioneering efforts with a small donation, which is entirely appreciated. I believe this to be the fairest method for all.

Finally, I Hope that everyone has a nice and safe Memorial Day holiday weekend!  -FRANK CONDON

 27-MAY-2005: 24 Hour Geomagnetic and Magneto-Telluric Graph

MT ULF UPDATE: May 28, 2005

Note: The San Jacinto Fault Alert along with Inland Empire advisory continues to stay in effect. There was strong infrasonic harmonic resonant activity below 2 Hz on Saturday. The Peak (Crustal) Infrasonic Harmonic Resonant Frequency was measured at 1.33 Hz (-70.77 dBv). The ULF and MT activity level was low to moderate during the past 24 hours. The inferred mean average unclamping level was unchanged. The ULF mean average was unchanged. The MT peak reading was measured at 9.1 units of regional lithospheric stress. The MT mean average was measured at 8.2 units.

M3.0 2005/05/28 18:40:28 36.584 -121.180 7.0 7 km ( 4 mi) NNW of Pinnacles, CA
M3.0 2005/05/29 07:44:51 40.486 -124.207 22.6 9 km ( 5 mi) W of Rio Dell, CA

All daily charts were updated to reflect the latest analysis.

General Discussion:
Infrasonic resonant harmonic activity was strong during the past 24 hours. There was activity at 1.33 Hz, and from 1.2 Hz to 1.5 Hz. There were two more ULF suppression incidents, one after midnight local time for ten minutes, and the other during mid-afternoon, which began at 21:56 UTC and was in effect for a total duration of approximately one hour and forty-three minutes. It appears to be spreading further north now and into the Mojave Desert Block and the Eastern Sierras with some indication that it may be affecting areas as far north as Central California. Tonight, another long duration ULF suppression incident was detected Saturday evening beginning at 5:46 UTC, which lasted for approximately one hour and twenty-one minutes and had a strong ULF burst at the very end of it. So, the incidents with ULF suppression are definitely on the rise.

Statement Summary:
It is inferred that the strong infrasonics are related to a rise in deep crustal stress along the Pacific & North American Plate Boundary in Southern California. The current infrasonics are inferred to be associated with high crustal stress along the San Andreas fault zone from Southern California to Central California and may also now be affecting the Owens Valley from Bishop to Coso Junction, CA as it nucleates north, and outside of the Mojave Desert Block, and west along the Garlock fault zone into the Central California Coastal region near San Simeon, CA (Pine Mountain-Big Pine faults). Also, appears to be affecting crustal stress levels as far north as The San Francisco Bay area. The San Jacinto fault zone and the Anza Seismic Gap was the focus of some of the most recently detected anomalies. We may now potentially be within 30 days of the next strong seismic event epicentered in Southern California. So, continue to stay on alert.

Critical Reminder:
All donations should be sent in to the lab prior to next June 15th 2005. Your contributions will be used to offset the cost of maintaining the website, which is currently over one thousand dollars per year. It's your web-site, too. Your support is essential to it being in operation 24/7. Prior to 2004, I went on a "summer schedule." If I get the proper financial support for maintaining the release of the vital information provided here, I may not have to resort to a reduced schedule this coming Summer. I prefer to give out the information to everyone without any restrictions. Those who can afford one, should sponsor my pioneering efforts with a small donation, which is entirely appreciated. I believe this to be the fairest method for all.

Finally, I Hope that everyone has a nice and safe Memorial Day holiday weekend!  -FRANK CONDON

 28-MAY-2005: 24 Hour Geomagnetic and Magneto-Telluric Graph

 28-MAY-2005: Infrasonic Spectrogram

MT ULF UPDATE: May 29, 2005

Note: The San Jacinto Fault Alert along with Inland Empire advisory continues to stay in effect. There was moderate infrasonic harmonic resonant activity below 2 Hz on Sunday. The Peak (Crustal) Infrasonic Harmonic Resonant Frequency was measured at 1.57 Hz (-70.98 dBv). The ULF and MT activity level was low to moderate during the past 24 hours. The inferred mean average unclamping level was unchanged. The ULF mean average was unchanged. The MT peak reading was measured at 8.6 units of regional lithospheric stress. The MT mean average was measured at 8.0 units.

M3.9 2005/05/29 18:30:45 32.559 -117.493 24.8 33 km ( 20 mi) WSW of Coronado, CA

All daily charts were updated to reflect the latest analysis.

General Discussion:
Infrasonic resonant harmonic activity was moderate during the past 24 hours. There was peak activity at 1.57 Hz, within a range from 1.45 Hz to 1.75 Hz. There was one ULF suppression incident, which began at 05:46 UTC and was in effect for a total duration of approximately one hour and twenty minutes. There was Infrasonic resonant harmonic activity during the morning period and prior to a M3.9 earthquake epicentered offshore of San Diego, CA. Two clouds appeared over the Cajon Pass region that I was able to capture photographs of before they dispersed and were taken between 15:45 and 16:00 UTC. It was noted that a series of three micro quakes were epicentered near Borrego Springs about 1.5 hours prior to the earthquake near San Diego, CA. The ULF suppression incident appears to be associated with crustal stress along the Western Garlock fault zone near Tehachapi, CA.

Statement Summary:
It is inferred that the strong infrasonics are related to a rise in deep crustal stress along the Pacific & North American Plate Boundary in Southern California. The current infrasonics are inferred to be associated with high crustal stress along the San Andreas fault zone from Southern California to Central California and may also now be affecting the Owens Valley from Bishop to Coso Junction, CA as it nucleates north, and outside of the Mojave Desert Block, and west along the Garlock fault zone into the Central California Coastal region near San Simeon, CA (Pine Mountain-Big Pine faults). Also, appears to be affecting crustal stress levels as far north as The San Francisco Bay area. The San Jacinto fault zone and the Anza Seismic Gap was the focus of some of the most recently detected anomalies. We may now potentially be within 30 days of the next strong seismic event epicentered in Southern California. So, continue to stay on alert.

Critical Reminder:
All donations should be sent in to the lab prior to next June 15th 2005. Your contributions will be used to offset the cost of maintaining the website, which is currently over one thousand dollars per year. It's your web-site, too. Your support is essential to it being in operation 24/7. Prior to 2004, I went on a "summer schedule." If I get the proper financial support for maintaining the release of the vital information provided here, I may not have to resort to a reduced schedule this coming Summer. I prefer to give out the information to everyone without any restrictions. Those who can afford one, should sponsor my pioneering efforts with a small donation, which is entirely appreciated. I believe this to be the fairest method for all.

Finally, I Hope that everyone has a nice and safe Memorial Day holiday weekend!  -FRANK CONDON

 29-MAY-2005: 24 Hour Geomagnetic and Magneto-Telluric Graph

nbsp;24-MAY-2005 12:00 - 15:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram

 29-MAY-2005: Recent Infrasonic Spectrogram

Scientific Earthquake Prediction is by no means an exact science, and much more work still needs completion before it's out of the experimental stages of development. You can compare this with looking at the Moon through a telescope, and arriving in a spaceship at Trinity Base. We are still looking at it through a focused lens and just beginning to take the step into outer space via satellite detection. My goal is to fill in the gaps down here at earth level. the Mojave segment along the San Andreas fault, the Garlock fault, and the Mojave Desert Block are my favorite subject. From the Gulf of California to Parkfield in Central California is my general zone of exploratory research. Anything outside of this is done for extra credit.

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