From the Los Angeles Times:
A San Andreas fault mystery: The 'slow-moving disaster' in an area where the Big One is feared
The San Andreas fault 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.
More at the site. The acceleration of movement is curious and vexatious - it stands to take out a major rail line as well as a major fiber optic cable and a highway.
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