Activity for the period August 8 - August 14, 2005:

Updated at 9:30 AM (PDT) on Monday, August 8, 2005:

The realtime computer system detected and located just one small (M=1.6) earthquake in the Long Valley caldera region since the last update at 9:50 AM on the 7th. This earthquake was located in the Sierra Nevada 14 miles southwest of Tom's Place.

Updated at 9:15 AM (PDT) on Tuesday, August 9, 2005:

The realtime computer system detected and located six earthquakes in the Long Valley caldera region since the last update at 9:30 AM on the 8th. Four were located in the Sierra Nevada south of the caldera. The largest was a M=3.0 earthquake at 8:58 AM on the 9th located in the vicinity of McGee Creek 2 miles west of Mount Morgan.

A series of small earthquakes continue to occur beneath the west flank of Mammoth Mountain. Two were large enough to be located by the realtime computer: they were M=1.2 and 1.3 earthquakes at 1:31 AM and 7:41 AM, respectively, on the 9th.

Updated at 9:30 AM (PDT) on Wednesday, August 10, 2005:

The realtime computer system detected and located five small earthquakes in the Long Valley caldera region since the last update at 9:15 AM on the 9th. All were located in the vicinity of yesterday's M=3.0 earthquake west of Mount Morgan. The largest was a M=2.0 earthquake at 2:27 PM on the 9th.

The sequence of M<1 earthquakes beneath the west flank of Mammoth Mountain appear to have gradually died away through the evening of the 9th.

Updated at 9:30 AM (PDT) on Thursday, August 11, 2005:

The realtime computer system detected and located four small earthquakes in the Long Valley caldera region since the last update at 9:30 AM on the 10th. Three occurred in the Sierra Nevada south of the caldera, all of M<2.0. The fourth was a M=1.3 earthquake beneath the west flank of Mammoth Mountain at 11:07 PM on the 10th. This represents a continuation of the low-level Mammoth Mountain seismic activity in which most of the earthquakes are too small (M<1)for automatic compter-generated locations.

Updated at 9:20 AM (PDT) on Friday, August 12, 2005:

The realtime computer system detected and located three small earthquakes in the Long Valley caldera region since the last update at 9:30 AM on the 11th. Two occurred in the Sierra Nevava south of the caldera, both of M<2.0. The third, a M=1.5 earthquake at 5:56 AM on the 12th, represents a continuation of the low-level activity beneath the west flank of Mammoth Mountain.

Updated at 9:40 AM (PDT) on Saturday, August 13, 2005:

The realtime computer system detected and located seven small earthquakes in the Long Valley caldera region since the last update at 9:20 AM on the 12th. Six were located in the Sierra Nevada south of the caldera. The largest were M=2.0 and 2.1 at 11:15 AM on the 12th and 6:40 AM on the 13th respectively. A M=1.1 earthquake at 7:07 PM on the 12th occurred beneath the west flank of Mammoth Mountain.

Updated at 9:50 AM (PDT) on Sunday, August 14, 2005:

The realtime computer system detected and located four small earthquakes in the Long Valley caldera region since the last update at 9:40 AM on the 13th. All had magnitudes M<2.0. Two were located in the Sierra Nevada south of the caldera. The other two represent a continuation of the low-level activity beneath Mammoth Mountain with M=1.4 and 1.3 earthquakes at 4:34 PM on the 13th and 7:19 AM on the 14th, respectively. This activity continues to include a number of smaller earthquakes (M<1) that are not recroded on enough seismic stations for automatic computer locations.