MT ULF UPDATE: June 12, 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 1.28 Hz (-70.24 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 basically unchanged. The MT peak reading was measured at 8.7 units of regional lithospheric stress. The MT mean average was measured at 8.0 units. There was a geomagnetic transient excursion which was detected early in the period that caused a geomagnetic storm which peaked during a period with high seismic activity in Southern California.

M5.6 2005/06/12 15:41:46 33.533 -116.578 14.1 9 km ( 6 mi) ESE of Anza, CA
M3.1 2005/06/12 20:47:47 33.500 -116.571 12.6 11 km ( 7 mi) ESE of Anza, CA

All daily charts were updated to reflect the latest analysis.
 

General Discussion:
On Sunday, there was a moderate earthquake epicentered within the Anza Seismic Gap near Anza, California. It appears that the trigger for this already high crustal stress zone was a transient geomagnetic excursion that was detected early in the reporting period. The ensuing geomagnetic storm peaked out just prior to its switch into negative bz territory. The storm appears to have caused enough of a stress increase along the San Jacinto fault zone to have caused a M5.6 seismic event. If not for the storm, the area would have been delayed for a while longer. There was very little change detected after the M5.6 and the situation appears to be the same at last check. The danger comes next when the high spring tides arrive during the next Full Moon and Perigee, 32 hours later. The area from South-Central to Southern California should remain on alert for a chance that another geomagnetic disturbance could change the time schedule again, as it did on Sunday. One interesting factor was that infrasonic resonant harmonics were quite active for several hours prior to the Anza Earthquake, also indicating that the region was already under high lithospheric stress prior to the arrival of the trigger mechanism. Crustal stress now appears to have nucleated further northwest towards the Cajon Pass. The Riverside to Lytle Creek Seismic Gap should be considered at high risk, according to the infrasonics. The Inland Empire should now be on Full Alert at this time. Maybe it would be an excellent idea to schedule an earthquake drill at work or at school. We definitely are in the middle of something happening at both the north and south ends of the San Bernardino Valley region. Other faults which need to be monitored are the Southern San Andreas, Helendale, Eastern Sierra Madre-Cucamonga, Rialto-Colton, Banning, and the entire San Jacinto fault zone should now be at the focus of this short term alert.

Epilog:
Begining on June 6, 2005 until June 9, 2005 I detected a series of high amplitude infrasonic resonant harmonic pulsations that were from three specific areas in the Inland Empire. Colton, Beaumont, and Idyllwild were the specific targets of a similar infrasonic disturbance, which peaked out just prior to the June 9, 2005 M3.1 earthquake at Anza, CA. I immediately stepped up my analysis of all anomalies. My conclusion as published on June 10, 2005 was that the San Jacinto fault was at an immediate high risk for having a major earthquake within the next three weeks, and included the Anza Seismic Gap as the inferred to be at high risk epicentric location.

12 JUN 2005  (163)

     ot  = 15:41:46.00   +/-   0.00         SOUTHERN CALIFORNIA             
     lat =      33.532   +/-    0.0
     lon =    -116.567   +/-    0.0              MAGNITUDE 5.6 (PAS)      
     dep =        13.5   +/-    0.0   

     35 km (20 miles) S of Palm Springs, California (pop 42,000)
     35 km (20 miles) NNW of Borrego Springs, California (pop 2,500)
     40 km (25 miles) WSW of Indio, California (pop 49,000)
     715 km (445 miles) SE of SACRAMENTO, California

 

 

Statement Summary:
It's inferred that the strong infrasonic resonant frequencies are related to a general rise in deep crustal stress along the Pacific & North American Plate Boundary in Baja, and Southern California. The current infrasonic harmonics are associated with high crustal stress along the San Andreas fault zone( Mojave Desert Block) from Southern to Central California, that may also affect the Southern Owens Valley as it nucleates north, and west along the Garlock fault zone towards 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 San Francisco Bay, and most recently within Central California near Avenal and Parkfield, CA. The latest observations are indicating that crustal stress is also high in Northern Baja, Californa, Mexico. We may now potentially be within 3 weeks of the next strong seismic event epicentered in the Southern California region. There is a greater propensity for an event of this magnitude during an upcoming extremely low transit of the Full Moon, where it won't even become visible above the horizon at Fairbanks, Alaska. The low path of the Full Moon is also going to give us some unusually high spring tides at mid-latitudes during Perigee. So, that could be the catalyst for triggering an area which is known to be overdue for having its next major earthquake. Note: Perigee arrives 32 hours after the next Full Moon, which is on June 21st. Frank Condon
GeoSeismic Labs Report
 

Date:June 13, 2005 at 04:36:30 From:Don in Hollister,  Subject:The Next Major Quake, Coashella Valley???

URL:San Andreas Fault

Hi All. It is felt that the number one location for the next big quake in Southern California is the San Andreas Fault in the Coachella Valley.  The San Andreas is the most prominent fault in the region. It is divided into the northern, central and southern sections. The central and southern sections stretch from Cholame in northeastern San Luis Obispo County to the Salton Sea in Imperial County and are broken into five segments: the Cholame, Carrizo, Mojave, San Bernardino Mountains and Coachella Valley. Because the San Andreas is the longest fault, it is capable of producing the largest earthquakes. The last earthquake on the southern San Andreas occurred in 1857. Scientists believe the fault ruptured at an area close to Parkfield in southern Monterey County and extended to Cajon Creek in San Bernardino County. Its magnitude is estimated at 7.8. The 1857 earthquake did not extend onto the San Bernardino Mountains and Coachella Valley segments. Scientists estimate that the last earthquakes on these segments occurred in 1812 and 1690, respectively. If the San Andreas Fault hasn’t had any serious movement since 1690 that could mean that it is locked tight because of the surrounding faults are applying pressure to it from the sides. The Anza quake was a strike-slip on a down-dipping fault plane. This is close to a normal fault in that there is some downward motion. Downward motion won’t occur unless the fault sort of separates a little. If enough separation occurs it could give the San Andreas Fault enough room to move. This is what triggered the Loma Prieta quake in 1989.  There were two M>5.0+ quake 15 months and 2 months prior to the quake. They didn’t occur on the San Andreas Fault, but on a fault about 5 miles away from it. The area of the Loma Prieta quake was in a seismic gap. This isn’t to say that the next quake is going to be the big one, but it can’t be ruled out. Don in creepy town

Date:June 13, 2005 at 04:50:49 From:Lisa/Lanc CA,  Subject:From this article... (AMG Read too)

This gives me more concern that this San Jacinto area is the trigger to what the San Andreas has in store for CA: The southern California segment of the San Andreas fault is described from the vicinity of Gorman, about 60 miles northwest of Los Angeles. There, it bends abruptly to the east for six miles, then resumes its original southeast heading. This "Big Bend" area is possibly the most significant tectonic area in California today. Here, the San Andreas intersects the left-lateral Garlock fault, the only major east-west trending fault in southern California. Earthquakes are common in this area. The Fort Tejon earthquake in 1857 (magnitude 8-plus) is thought to have been at least as violent as the San Francisco earthquake 49 years later. The San Fernando earthquake of 1971 (magnitude 6.6) was also associated with this zone of intersection. From Tejon Pass, the main trace of the San Andreas fault passes through the high desert north of Los Angeles, defining the north face of the San Gabriel Mountains. It then separates the San Gabriel Mountains from the San Bernardino Mountains, creating Cajon Pass that takes Interstate 15 out of southern California. From the vicinity of Cajon Pass, the southern California segment of the San Andreas fault becomes very complex with no distinctive single trace as in the north. Instead, it is divided into several right-lateral elements, all somewhat parallel to each other. Principal among these are the San Jacinto and Elsinore faults. Several branches go through the San Bernardino Mountains and along the north margin of San Gorgonio Pass into the Coachella Valley.

 

Date:June 13, 2005 at 04:22:01 From:AboveClouds,  Subject:I think we have some real.....

URL:real-time magnetosphere simulation

solar/earth problems here. I wish I could figure it out....just a "gut" feeling, this data is too bizzare...its looking worse than ominous in relation to eq's being triggered....larger like 6m or 7's and right now am getting hit with tones that are pulsing and louder. FWIW ps: link shows strange "hits" in the back frames..that coincide W/latest 5+ eq(below main current pic)see link^ AboveClouds

 
 

Maranatha!
Deborah
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