RE: [californiadisasters] Quake swarm near Lassen Peak doesn't appear to be volcanic

So, are these quakes then related to those in Northern Nevada hat have been occurring lately? Jim

-----Original Message-----
From: californiadisasters@yahoogroups.com [mailto:californiadisasters@yahoogroups.com]
Sent: Saturday, November 15, 2014 9:24 AM
To: undisclosed-recipients:
Subject: [californiadisasters] Quake swarm near Lassen Peak doesn't appear to be volcanic




Quake swarm near Lassen Peak doesn't appear to be volcanic


Staff Reports

Posted: 11/14/2014


Click photo to enlarge
<http://www.chicoer.com/portlet/article/html/render_gallery.jsp?articleId=26942012&siteId=135&startImage=1>
Screen shot of the U.S. Geological Survey's earthquake website (http://earthquake.usgs.gov) shows...
LASSEN PARK >> A hundred years ago the ground around Lassen Peak was shaking, as the volcano was in the midst of a year-long string of small eruptions that would culminate with an explosive eruption May 22, 1915.

The ground in that vicinity had been shaking again for the last week, although scientists don't think it's related to volcanic activity.

Since Nov. 8, there have been in excess of 150 densely-packed earthquakes just south of Lassen Volcanic National Park. Almost all the quakes have been tiny, with just a handful that could be felt even under favorable conditions. The largest was a 3.86 magnitude quake that happened just after midnight on Nov. 11.

The quake swarm has been concentrated in a band between Mill Creek and the North Fork of the Feather River, between Lassen Park and Childs Meadow. As of 5 p.m., there had been seven quakes on Friday, ranging from magnitude 2.7 to 1.6.

A call to the U.S. Geological Survey seeking comment was not returned by deadline, but the website of its California Volcanic Observatory indicated the swarm's cause doesn't appear to be volcanic activity. "Ground deformation indicative of volcanic unrest has not been detected by nearby GPS receivers," the website states.

Instead the quakes are likely fault motion along the Walker Lane Fault System, which runs near the California-Nevada border. No immediate threat is seen.

The Volcanic Observatory is in contact with Lassen Park, however, watching for any changes in the hydrothermal features there.

http://www.chicoer.com/news/ci_26942012/quake-swarm-near-lassen-peak-doesnt-appear-be
--



V <http://goog_333603103> ei8 <http://goog_333603103> Volcanoes of the World Webcams <http://vei8home.blogspot.com/>
Roxxfoxx~~Adventures in Geology <http://1roxxfoxx.blogspot.com/>
Penguin News Today <http://penguinnewstoday.blogspot.com/>
Penguinology: The Science of Penguins <http://penguinology.blogspot.com/>
Gentoo Penguins of Gars O'Higgins Station, Antarctica <http://wiinterrr.blogspot.com/>
Canis lupus 101 <http://canislupus101.blogspot.com/>
Through Golden Eyes <http://throughgoldeneyes.blogspot.com/>
Foxes in the Vines <http://foxesinthevines.blogspot.com/>
Follow me on Pinterest <http://pinterest.com/wiinterrr/> !
<http://i.imgur.com/NMmD0Es.jpg>







------------------------------------
Posted by: "jim rawls" <jazzpiano@ca.rr.com>
------------------------------------

Be sure to check out our Links Section at http://groups.yahoo.com/group/californiadisasters/links
Please join our Discussion Group at http://groups.yahoo.com/group/californiadisasters_discussion/ for topical but extended discussions started here or for less topical but nonetheless relevant messages.
------------------------------------

Yahoo Groups Links

<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/californiadisasters/

<*> Your email settings:
Individual Email | Traditional

<*> To change settings online go to:
http://groups.yahoo.com/group/californiadisasters/join
(Yahoo! ID required)

<*> To change settings via email:
californiadisasters-digest@yahoogroups.com
californiadisasters-fullfeatured@yahoogroups.com

<*> To unsubscribe from this group, send an email to:
californiadisasters-unsubscribe@yahoogroups.com

<*> Your use of Yahoo Groups is subject to:
https://info.yahoo.com/legal/us/yahoo/utos/terms/