Another Episodic Tremor-and-Slip Event
The Seattle Times reports today that we are in the midst of another Tremor-and-Slip Event:
blockquote>University of Washington seismologists are closely monitoring another slow-moving tremor that’s been detected under the Olympic Peninsula.
So-called “tremor-and-slip” events have occurred about every 15 months since they were first detected in 2002. The latest was found early Sunday north of Olympia and west of Tacoma, and is expected to travel north under the peninsula toward Vancouver Island. UW scientists say it can’t be felt at the surface, but over the course of several weeks can release as much energy as a magnitude 6 earthquake.
Oh great! Researchers believe the tremors may be associated with stress building in the Cascadia subduction fault zone, about 50 miles off the Pacific coast.
Tags: Slow-slip events Earthquake episodic tremor-and-slip event
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I check the pacific northwest webicorders every so often. This past month, they have seemed more restless to me.
My mountain, Mt. Adams, is usually pretty quiet, and boring with flat lines, but even “The Old Man” has had a few more jigs and jogs lately.
This morning it has had quite a few scribbles.
Some of them are probably far away quakes, such as 7.1 Ecuador quake this morning at about 12:00 UTC.
http://www.pnsn.org/WEBICORDER/VOLC/ASR_SHZ_UW_–.2010081212.html