Saturday, November 03, 2018

To me, it seems more like the beginning of a rift valley than any other geological formation.

Field Guide to the San Andres Fault (click here)

Nov. 1, 2018
By Alejandra Reyes-Velarde

The San Andreas fault (click here) begins its dangerous dance through California at the Salton Sea, at a spot that seismologists long have feared could be the epicenter of a massive earthquake.

But in recent months, this desolate location where the North American and Pacific plates rub together has become the focus of intense interest for a type of movement that is less the Big One than the Slow One.

A muddy spring mysteriously has begun to move at a faster pace through dry earth — first 60 feet over a few months, and then 60 feet in a single day, according to Imperial County officials....

November 1, 2018
By Ron Brackett

The county declared (click here) an emergency this summer, the Los Angeles Times reported, to speed up efforts to prevent the geyser from reaching Union Pacific's tracks, a stretch of State Route 111, a petroleum pipeline, and fiber optic telecommunications lines.

The geyser, also called a mud pot or mud spring, has been in existence near Niland, California, since 1953, an Imperial County fact sheet says. It has moved slowly for the past 11 years, but recently, that movement has accelerated.

It's near the southern end of the San Andreas Fault, but the movement is not seismic activity, U.S. Geological Survey geophysicist Ken Hudnut told the Los Angles Times....

November 2, 2018

Hollister -- A swarm of earthquakes (click here) along the San Andreas Fault, the largest measuring a 4.1 magnitude, rumbled through the Hollister area and the Salinas Valley Friday morning. CBS San Francisco, citing officials, reports the quakes rattled nerves but caused no major damage.

.According to the U.S. Geological Survey, the 4.1 quake hit at 5:58 a.m. PDT 12 miles southwest of the small community of Tres Pinos. It was followed by quakes measuring 3.6, 3.2 and 3.0.

The USGS said the quakes were most strongly felt in nearby Hollister followed by Salinas, Gonzales, Monterey, Carmel Valley and Santa Cruz.

Authorities did not report any damage.Matzuma Li, who lives in the Central Valley took to Twitter, saying the jolt awoke she and her cats.

"Nice way to start the day… A pleasant 4.0 to shake the cats through the roof at 6am," she tweeted.