Activity for the period August 22-28, 2005:

Updated at 10:00 AM (PDT) on Monday, August 22, 2005:

The realtime computer system detected and located fourteen small earthquakes in the Long Valley caldera region since the last update at 9:50 AM on the 21st. All were located in the Sierra Nevada south of the caldera, and only one had a magnitude above M=2.0 (M=2.1 at 8:36 PM on the 21st). Elsewhere, a magnitude M=1.5 was detected ~ 35 km (21 miles) east of Lee Vining.

Updated at 9:00 AM (PDT) on Tuesday, August 23, 2005:

The realtime computer system detected and located two small earthquakes in the Long Valley caldera region since the last update at 10:00 AM on the 22nd. Both were located in the Sierra Nevada south of the caldera, and had magnitudes less than M=2.0.

Updated at 10:27 AM (PDT) on Wednesday, August 24, 2005:

The realtime computer system detected and located six small earthquakes in the Long Valley caldera region since the last update at 9:00 AM on the 23rd. All were located in the Sierra Nevada south of the caldera, and had magnitudes less than M=2.0.

Updated at 9:00 AM (PDT) on Thursday, August 25, 2005:

The realtime computer system detected and located two small earthquakes in the Long Valley caldera region since the last update at 10:27 AM on the 24th. Both were located in the Sierra Nevada south of the caldera, and had magnitudes less than M=2.0.

Updated at 9:00 AM (PDT) on Friday, August 26, 2005:

The realtime computer system detected and located three small earthquakes in the Long Valley caldera region since the last update at 9:00 AM on the 25th. All three were located in the Sierra Nevada south of the caldera, and had magnitudes less than M=2.0.

Updated at 10:00 AM (PDT) on Saturday, August 27, 2005:

The realtime computer system detected and located six small earthquakes in the Long Valley caldera region since the last update at 9:00 AM on the 26th. Five were located in the Sierra Nevada south of the caldera. The largest Sierran event, a magnitude M=2.6, occurred at 9:11 AM today; the others were below M=2.0. The sixth event was located beneath the south flank of Mammoth Mountain. It had a magnitude of M=1.6.

Updated at 11:00 AM (PDT) on Sunday, August 28, 2005:

The realtime computer system detected and located ten small earthquakes in the Long Valley caldera region since the last update at 10:00 AM on the 27th. Nine were located in the Sierra Nevada south of the caldera and one was located to the east of Devils Postpile. All of the events were of magnitude M<2.0.