Activity for the period Feburary 13 -19, 2006:

Updated at 10:00 AM (PST) on Monday, February 13, 2006:

The realtime computer system detected no earthquakes in the Long Valley caldera region since the last update at 11:00 AM on the 12th.

Updated at 11:00 AM (PST) on Wednesday, February 15, 2006:

The realtime computer system detected three small earthquakes in the Long Valley caldera region since the last update at 10:00 AM on the 13th. Two events were located to the south of the caldera in the Sierra Nevada. The third was located inside the caldera in the south moat. All three events had magnitudes of M<2.0.

Updated at 9:00 AM (PST) on Thursday, February 16, 2006:

The realtime computer system detected one magnitude M=1.4 earthquake in the Long Valley caldera region since the last update at 10:00 AM on the 15th. The event was located to the south of the caldera in the Sierra Nevada.

Updated at 9:59 AM (PST) on Thursday, February 16, 2006:

The realtime computer system detected a moderate earthquake to the east of Mono Lake at 9:47 AM this morning. The preliminary magnitude assigned to the event is M=4.3. It was located ~ 30 km (19 miles) east of Lee Vining, and was followed by a M=2.0 aftershock. In the Fall of 2004 (September-November) a swarm of earthquakes occurred in an area close to today's event (Adobe Hills) that included three events of magnitude 5 or above (M=5.5, 5.4, 5.0).

Updated at 9:00 AM (PST) on Friday, February 17, 2006:

The realtime computer system detected one magnitude M=1.1 earthquake in the Long Valley caldera region since the last update at 9:59 AM on the 16th. The event was located to the south of the caldera in the Sierra Nevada SW of Toms Place.

Elsewhere in the region, the area east of Mono Lake that was shook by a M=4.2 (revised magnitude) earthquake at 9:59 AM yesterday was the location of 5 after- shocks. The largest of these was a M=2.0.

Updated at 11:00 AM (PST) on Saturday, February 18, 2006:

The realtime computer system detected two magnitude M<2.0 earthquakes in the Long Valley caldera region since the last update at 9:00 AM on the 17th. Both events were located to the south of the caldera in the Sierra Nevada SW of Toms Place.

Updated at 12:00 PM (PST) on Sunday, February 19, 2006:

The realtime computer system detected one magnitude M=1.5 earthquake in the Long Valley caldera region since the last update at 11:00 AM on the 18th. The event was located to the south of the caldera in the Sierra Nevada SW of Toms Place.

Elsewhere in the region, six magnitude M<2.0 earthquakes occurred east of Mono Lake in the area of the magnitude M=4.2 event that occurred on the 16th of February.