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‘This is surprising’: Researchers find California quakes have awakened quiet fault line

Earth changes california

There have been signs recently that the “long quiet” in California – USA seismic activity is coming to an end. Here’s something new to be concerned about and prepared for (and as a quake survivor myself, I do urge Californians to be calm and prepared when the inevitable occurs). MH

Sputnik International
Sat, 19 Oct 2019 00:49 UTC

Garlock fault

© Screenshot/Courtesy of Planet Labs IncThe 160-mile-long Garlock fault that runs northeast-southwest along the Mojave Desert in Southern California has begun moving for the first time on record, according to a study published Thursday by Caltech scientists and based on new satellite radar images.

“This is surprising, because we’ve never seen the Garlock fault do anything. Here, all of a sudden, it changed its behavior,” lead author of the study Zachary Ross, an assistant professor of geophysics at Caltech, is quoted as saying by the Los Angeles Times. “We don’t know what it means.”

According to the scientists, a portion of the fault has shifted about 0.8 inches since July, when two earthquakes took place in the region. The 6.4-magnitude tremor that struck 122 miles northeast of Los Angeles on July 4 was followed one day later by a powerful 7.1-magnitude earthquake that caused a fissure within the Little Lake fault zone in Southern California’s Indian Wells Valley area.

The earthquakes in July, which involved other criss-crossing faults, are believed to have strained the Garlock fault.

“It’s going to force people to think hard about how we quantify seismic hazard and whether our approach to defining faults needs to change,” Ross said, the Washington Post reported. “We can’t just assume that the largest faults dominate the seismic hazard if many smaller faults can link up to create these major quakes.”

The fact that the Garlock fault has shifted is unnerving, given that it’s located in an area that can produce magnitude 8 quakes.

According to the Los Angeles Times, it’s difficult to predict whether an earthquake along that fault will soon occur. However, if it does, it is likely to affect the San Fernando Valley, Santa Clarita, Lancaster, Palmdale, Ventura, Oxnard and Bakersfield, as well as Kern County, which is an important area for agriculture and oil production.

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About the author

    Martin Harris

    I have a lovely partner and 3 very active youngsters. We live in the earthquake ravaged Eastern Suburbs of Christchurch, New Zealand. I began commenting/posting on Uncensored back in early 2012 looking for discussion and answers on the cause and agendas relating to our quakes. I have always maintained an interest in ancient mysteries, UFOs, hidden agendas, geoengineering and secret societies and keep a close eye on current world events. Since 2013 I have been an active member of theCONTrail.com community, being granted admin status and publishing many blogs and discussion threads. At this time I'm now helping out with admin and moderation duties here at Uncensored where my online "life" began.

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