February 2009 Commentary

A minor earthquake occurred at 01:52 AM (PST). This event was located about 29 miles WNW of Grants Pass, OR. The moment magnitude for this event is 4.0.

A minor earthquake occurred at 02:29 AM (PST). This event was located about 1 mile NNW of The Geysers, CA. The moment magnitude for this event, determined at Berkeley, is 3.7. The maximum modified Mercalli intensity was II. Shake Map of instrument intensities measured for this event, is available. ("Did You Feel It?") Map.

A major earthquake occurred at 09:34 AM (PST). This event was located Kepulauan Talaud, Indonesia, about 175 miles SSE of General Santos, Mindanao, Philippine Islands. The moment magnitude for this event, determined by the U.S. Geological Survey, is 7.2. USGS NEIC information.

A minor earthquake occurred at 04:20 PM (PST). This event was located abou t7 miles S of Tres Pinos, CA. The local magnitude for this event, is 3.7. The maximum modified Mercalli intensity was III. Shake Map of instrument intensities measured for this event, is available. ("Did You Feel It?") Map.