Welcome! Log In Create A New Profile Recent Posts
Dogwood bloom in Yosemite Valley

The Moon is Waning Crescent (15% of Full)


Long Valley Volcanic Center Weekly Update issued Sep 3, 2010

All posts are those of the individual authors and the owner of this site does not endorse them. Content should be considered opinion and not fact until verified independently.

avatar Long Valley Volcanic Center Weekly Update issued Sep 3, 2010
September 03, 2010 02:26PM
Nineteen earthquakes between magnitude M=1.0 and M=2.7 occurred in the Long Valley area since the last update on August 27, 2010. One, a M=1.9 earthquake at 10:53 PM on Aug. 27, was located within the caldera beneath the south moat 0.5 mile south of Whitmore Hot Springs. The others were located in the Sierra Nevada south of the caldera. The largest was a M=2.7 earthquake on Aug 30 at 12:38 AM located beneath the McGee Creek area 1 mile east of Mt. Baldwin. This was followed by six M>1 aftershocks and a number of smaller earthquakes over the next ten minutes. Four small (M<1) earthquakes occurred beneath Mammoth Mountain, two on Aug 29 and two on Sept. 2. Post-processing analysis has identified a M 2.3 long-period earthquake beneath the summit of Mammoth Mountain that occurred during the previous week (August 23 at 2:17 PM).
Sorry, only registered users may post in this forum.

Click here to login