Aftershocks of the 1952 Tehachapi Earthquake
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)
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(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 MT ULF REPORTS published in May 2005)
(View MT ULF REPORTS published in June 2005)
(View MT ULF REPORTS published in July 2005)
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MT ULF UPDATE: August 1, 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 0.11 Hz (-66.36 dBv).
The ULF and MT activity level was moderate to high 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 8.7 units of regional lithospheric stress.
The MT mean average was measured at 7.7 units. There were no detected ULF suppression incidents. There were no periods with severe
unclamping (dilatancy). There was upper level infrasonic resonant harmonic activity at 5 Hz observed on the electronic
tracking filter. There were no periods with detected geomagnetic oscillation or any significant long duration
piezomagnetic burst activity.
M3.1 2005/08/01 05:24:42 36.684 -121.309 4.3 12 km ( 7 mi) S of Tres Pinos, CA
M3.1 2005/08/01 05:00:11 36.681 -121.304 4.3 12 km ( 8 mi) S of Tres Pinos, CA
All daily charts were updated to reflect
the latest analysis.
General Discussion:
Early in the period, there was strong ULF signal burst activity associated with a micro quake swarm epicentered near Niland, CA
within the Brawley Seismic Zone, a conjugate strike-slip fault region which extends up the Imperial Valley from the Imperial fault towards the
Southern San Andreas fault (Bombay Beach).
The Current Statement Summary is periodically updated.
01-AUG-2005: 24 Hour Geomagnetic and Magneto-Telluric Graph
01-AUG-2005 00:00 - 03:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram
01-AUG-2005 15:00 - 18:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram
01-AUG-2005 18:00 - 21:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram
01-AUG-2005 21:00 - 24:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram
02-AUG-2005 00:00 - 03:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram
MT ULF UPDATE: August 2, 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 Tuesday.
The Peak (Crustal) Infrasonic Harmonic Resonant Frequency was measured at 0.94 Hz (-71.52 dBv).
The ULF and MT activity level was 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 8.9 units of regional lithospheric stress.
The MT mean average was measured at 7.6 units. There were no detected ULF suppression incidents. There were no periods with severe
unclamping (dilatancy). There was upper level infrasonic resonant harmonic activity at 5 Hz observed on the electronic
tracking filter. There were no periods with detected geomagnetic oscillation or any significant long duration
piezomagnetic burst activity.
M3.0 2005/08/03 18:20:41 33.627 -118.540 2.2 20 km ( 12 mi) SSW of Palos Verdes Point, CA
All daily charts were updated to reflect
the latest analysis.
General Discussion:
Early in the period, there was strong ULF signal burst activity associated with a micro quake epicentered in an offshore region
SW of Rancho Palos Verdes, CA within San Pedro Channel. Later on, there was a long duration extremely low frequency ULF signal burst
associated with a micro quake epicentered near Ludlow, CA and the ECSZ/Mojave Desert Block.
The Current Statement Summary is periodically updated.
02-AUG-2005: 24 Hour Geomagnetic and Magneto-Telluric Graph
02-AUG-2005 12:00 - 15:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram
02-AUG-2005 15:00 - 18:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram
02-AUG-2005 18:00 - 21:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram
02-AUG-2005 21:00 - 24:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram
MT ULF UPDATE: August 3, 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 0.04 Hz (-56.00 dBv).
The ULF and MT activity level was low to moderate during the past 24 hours. The inferred mean average unclamping level was increased.
The ULF mean average was unchanged. The MT peak reading was measured at 8.8 units of regional lithospheric stress.
The MT mean average was measured at 7.8 units. There were no detected ULF suppression incidents. There were no periods with severe
unclamping (dilatancy). There was upper level infrasonic resonant harmonic activity at 5 Hz observed on the electronic
tracking filter. There were no periods with detected geomagnetic oscillation or any significant long duration
piezomagnetic burst activity.
3.0 2005/08/03 18:20:41 33.627 -118.540 2.2 20 km ( 12 mi) SSW of Palos Verdes Point, CA
All daily charts were updated to reflect
the latest analysis.
General Discussion:
There was a detected nucleation of lithospheric stress out of the ECSZ and along the Northern edge of the Mojave Desert Block along the Western
Garlock Fault zone near Tehachapi, CA and across the Pacific & North Anerican Plate Boundary near Gorman, CA. Yesterday, I detected a
high frequency ULF signal burst associated with a micro quake epicentered 6 miles NNW of the Western Garlock Fault Zone. Another Double
Scalar Energy Pulse was detected sometime after an offshore M3.0 earthquake epicentered near Long Beach, CA.
The Current Statement Summary is periodically updated.
03-AUG-2005: 24 Hour Geomagnetic and Magneto-Telluric Graph
03-AUG-2005 03:00 - 06:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram
03-AUG-2005 15:00 - 18:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram
03-AUG-2005 18:00 - 21:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram
03-AUG-2005 21:00 - 24:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram
MT ULF UPDATE: August 4, 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 Thursday.
The Peak (Crustal) Infrasonic Harmonic Resonant Frequency was measured at 0.18 Hz (-67.18 dBv).
The ULF and MT activity level was low to moderate during the past 24 hours. The inferred mean average unclamping level was unchanged.
There were no periods with severe unclamping (dilatancy). There was upper level infrasonic resonant harmonic activity at 5 Hz
observed on the electronic tracking filter. Some parameters (ULF/MT/Geomagnetic) are missing due to a computer hardware failure
which was repaired within 24 hours. A reminder, that we are now in the New Moon period for Lunar-Tidal
related stress changes.
A New Moon Advisory is now
in effect.
All daily charts were updated to reflect
the latest analysis.
General Discussion:
Lithospheric Stress Continues to increase along the Pacific & North American Plate Boundary from the Gulf of California
to Central California, including that which is nucleated west along the Garlock fault zone towards Frazier Park, CA.
There were periods with increased upper level (5 Hz) spectral harmonic content at the Plate Boundary from Northern Baja California,
Mexico to the Mojave Desert Block/ECSZ.
The Current Statement Summary is periodically updated.
04-AUG-2005 00:00 - 03:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram
04-AUG-2005 15:00 - 18:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram
04-AUG-2005 18:00 - 21:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram
04-AUG-2005 21:00 - 24:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram
05-AUG-2005 03:00 - 06:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram
MT ULF UPDATE: August 5, 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 Friday.
The Peak (Crustal) Infrasonic Harmonic Resonant Frequency was measured at 0.94 Hz (-70.71 dBv).
The ULF and MT activity level was low to moderate during the past 24 hours. The inferred mean average unclamping level was decreased.
There were no periods with severe unclamping (dilatancy). There was upper level infrasonic resonant harmonic activity at 5 Hz
observed on the electronic tracking filter. Some parameters (ULF/MT/Geomagnetic) are still missing due to a computer hardware failure
which was repaired by the middle of the regular reporting period.
M3.7 2005/08/05 13:30:42 32.353 -115.221 31.0 13 km ( 8 mi) NW of Guadalupe Victoria, Mexico
A New Moon Advisory is now
in effect.
All daily charts were updated to reflect
the latest analysis.
General Discussion:
Lithospheric Stress Continues to increase along the Pacific & North American Plate Boundary from the Gulf of California
to Central California. An earthquake epicentered in Northern Baja California, Mexico appears to be related to the obsevered
increase in deep crustal stress. There were long periods with increased upper level (5 Hz) spectral harmonic content at the
Plate Boundary from Northern Baja California, Mexico to the Mojave Desert Block/ECSZ.
The Current Statement Summary is periodically updated.
05-AUG-2005 15:00 - 18:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram
05-AUG-2005 18:00 - 21:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram
05-AUG-2005 21:00 - 24:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram
06-AUG-2005 00:00 - 03:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram
06-AUG-2005 03:00 - 06:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram
MT ULF UPDATE: August 6, 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 Saturday.
The Peak (Crustal) Infrasonic Harmonic Resonant Frequency was measured at 0.76 Hz (-74.09 dBv).
The ULF and MT activity level was low to moderate during the past 24 hours. The inferred mean average unclamping level was
decreased. 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 7.8 units. There were no periods with severe unclamping (dilatancy). There was strong
upper level infrasonic resonant harmonic activity at 5 Hz observed on the electronic tracking filter. There were no periods with
detected geomagnetic oscillation, or any significant long duration piezomagnetic burst activity.
M3.0 2005/08/06 05:42:24 36.156 -118.072 5.7 14 km ( 8 mi) SSW of Olancha, CA
M4.2 2005/08/06 05:40:32 36.150 -118.078 0.8 14 km ( 9 mi) SSW of Olancha, CA
A New Moon Advisory is now
in effect.
All daily charts were updated to reflect
the latest analysis.
General Discussion:
Lithospheric Stress Continues to increase along the Pacific & North American Plate Boundary from the Gulf of California
to Central California. A M4.2 earthquake was epicentered near Olancha, in Central California and appears to be related to the
an increase in deep crustal stress in the Mojave Desert Block/ECSZ. There were long periods with increased upper level (5 Hz)
spectral harmonic content at the Plate Boundary from Northern Baja California, Mexico to the Mojave Desert Block/ECSZ and as far
north as Kernville, and Olancha, CA. A short term warning was issued during a period with extremely active 5 Hz harmonic content
and a detected quintuple Scalar Energy Pulsation was observed late in the period and inferred to be associated with the Mojave Desert
Block/ECSZ by virtue of the concurrent strong upper level harmonic at 5Hz. That activity deceased immediately after a pair of micro
quakes epicentered near Kernville, CA. The M4.2 which occurred very early in the reporting period was apparently associated with a
high frequency ULF signal burst which was recently detected and inferred to be related to a micro quake epicentered 6 miles NNW of
the Garlock Fault Zone near Tehachapi, CA. The reported high crustal stress nucleating out of the Mojave Desert Block/ECSZ and along
the Northern edge of the Mojave Desert Block (Garlock fault Zone) seems to have affected an area directly to its north in the Southern
Sierras with two light earthquakes in the range of M4.2 to M3.0 along with a swarm of smaller aftershocks. All of this activity is
inferred to be related to the birth of a new plate boundary within the Mojave Desert Block/ECSZ headed north via the West
Calico/Blackwater fault, across the Garlock Fault Zone near Ridgecrest, CA and into the Southern Owens Valley via the Little Lake
fault to Olancha, CA. Adjacent faults such as the Kern Canyon and Owens Valley Fault can also be disturbed by a change in deep crustal
energy nucleating north across the Garlock Fault Zone and into the Southern Sierras between Lone Pine and Lake Isabella, CA. Another
area with increased ULF activity was located in the Inland Empire near Devore and Rancho Cucamonga, CA and close to the Eastern Sierra
Madre/Cucamonga fault, where it intersects with the Northern San Jacinto Fault.
06-AUG-2005: 24 Hour Geomagnetic and Magneto-Telluric Graph
06-AUG-2005 09:00 - 12:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram
06-AUG-2005 18:00 - 21:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram
06-AUG-2005 21:00 - 24:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram
07-AUG-2005 00:00 - 03:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram
07-AUG-2005 03:00 - 06:00 UTC
ECSZ Mojave Desert Block: Infrasonic Spectrogram
Statement Summary:
It's inferred that recently detected strong infrasonic resonant harmonics are related to a general rise in deep crustal
resonant energy coming from along the Pacific & North American Plate Boundary in Baja, and Southern California. The current
infrasonic harmonics are associated with high a lithospheric stress level along the San Andreas fault zone( Mojave Desert Block/ECSZ)
from Southern to South-Central California, which affects the Walker Lane/ Owens Valley region as it nucleates into Northern
California. It then nucleates westward at the southern edge of the Cascades Range near Burney, CA (5.10.2005/M4.4) and into the
offshore Mendocino-Triple-Junction Subduction zone to the west of Crescent City and Petrolia, CA(6.14.2005/M7.2, 6.16.2005/M6.7
respectively). The same crustal stress also nucleates westward along the Garlock fault zone and the border between the Southern
Sierras batholith / Mojave Desert Block near Tehachapi/Arvin/Keene, CA(9.29.2004/M5.0) where it crosses the Plate boundary at the
Grapevine, near Mettler (4.16.2005/M5.2), and Frazier Park, CA (4.15.2005/M3.1) at the western end of the big bend along the San
Andreas fault and Pine Mountain-Big Pine-Hosgri fault system, which ultimately affects the crustal stress level at the Central
California Coast near San Simeon/Cayucos and Paso Robles, CA(12.22.2003/Mw6.5).It may also be the source of the stress trigger
for the long predicted Parkfield Experiment M6.0 earthquake on September 28, 2004. It also affects the lithospheric stress level
along major faults in the Inland Empire of Southern California, where there was a recent fifty mile distant pairing of moderate
earthquakes near both the Anza Seismic Gap(6.12.2005/M5.2) , and at Yucaipa, CA(6.16.2005/M4.9) which are inferred to be related
to stress nucleation out of the Salton Sink/Coachella Valley region being driven alternately by the ECSZ and the Gulf of California
to the south, along the Southern San Andreas Fault, which hasn't had a strong earthquake within the past 350 years.
The newly analyzed infrasonics are indicating that the source of this stress (1.04 Hz) is extremely close to Southern California
latitudes at the Pacific and North American Plate Boundary (ECSZ), where 34.0 degrees North is inferred to equal 1.0 Hz. We may now
potentially be very close in timing to the next strong seismic event epicentered in the Southern California region. We should also
proceed to a heightened level of alert whenever solar induced-geomagnetic earth activity appears (6.13.2005/Chile M7.8). The long
duration periods with sub-ionospheric ULF wave absorption are an excellent indicator to when the activity begins to surface. However,
I must emphasize that not everything is yet known about how this works, and I must warn you to be prepared for an event which is higher
in magnitude. Danger also arises if the deep resonant harmonic energy is vectored through a volcanic center, of which the Walker Lane
Owens valley region has many in the direction of the energy coming out of the ECSZ and towards the Coso Volcanic Center, Long
Valley Caldera, and the Inyo/Mono Basin Craters. Additionally, any major seismic or volcanic activity epicentered from Central America
to Central Mexico, appears to increase the lithospheric stress along the Pacific & North American Plate Boundary in Baja and Southern
California.
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, the San Jacinto fault, and the Mojave
Desert Block are my favorite subjects. 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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Infrasonic harmonic pulsations and spectrum content, detected
