Earthquakes recorded by the Pacific Northwest Seismograph Network during the past two weeks. Times are local (PST or PDT). Most recent earthquakes are at the top of the list. Click on the word "map" or "MAP" to see a map view. Click on a "DATE" to get additional text information. Magnitude 3 and greater earthquakes are printed in bold type. The top three magnitudes greater than or equal to 3 are in red. Earthquake locations are not being updated currently, although seismicity is continuing at Mount St Helens

Automatically calculated locations and magnitudes for Mount St. Helens events were inaccurate due to the continuous nature of the activity, so we have suspended posting of automatic locations in the MSH area. Analysts are going through the recorded data systematically and event locations will be posted as they become available. Our efforts are directed toward interpretation of data, in a rapidly evolving situation, rather than rapid posting of individual events.

Please see the Volcanic Advisory for updates.

Current Webicorder Records

    MAG  DATE    LOCAL-TIME  LAT     LON    DEPTH    LOCATION
          y/m/d     h:m:s     deg     deg     km
   

map 1.0  2010/03/20 18:49:00 45.104N 120.912W 27.5   15 km (10 mi) ESE of  Maupin, OR
map 1.2  2010/03/20 09:06:55 46.928N 121.974W 10.6   18 km (11 mi) SSE of  Carbonado, WA
map 1.1  2010/03/20 07:43:24 47.452N 123.204W  0.0   14 km ( 9 mi) NNW of  Skokomish, WA
map 1.2  2010/03/20 04:53:38 46.485N 122.416W 22.0    7 km ( 4 mi) SE  of  Mossyrock, WA
map 1.6  2010/03/19 17:52:03 48.889N 125.173W 10.0   71 km (44 mi) NW  of  Neah Bay, WA
map 1.2  2010/03/18 16:50:09 45.575N 122.656W 18.1    6 km ( 4 mi) NNW of  Portland, OR
map 1.1  2010/03/18 13:42:33 47.890N 122.615W  0.0    7 km ( 4 mi) ESE of  Port Ludlow, WA
map 1.1  2010/03/18 12:33:44 45.561N 122.645W  3.7    4 km ( 3 mi) N   of  Portland, OR
map 1.4  2010/03/18 01:29:13 45.547N 122.675W  6.7    4 km ( 2 mi) NW  of  Portland, OR
map 1.8  2010/03/17 12:42:10 45.619N 121.322W 50.9    7 km ( 4 mi) SSW of  Rowena, OR
map 1.1  2010/03/17 05:31:13 48.039N 123.088W 44.6    3 km ( 2 mi) S   of  Bell Hill, WA
map 1.9  2010/03/16 18:37:09 44.263N 123.284W 22.6    6 km ( 4 mi) SSE of  Monroe, OR
map 1.6  2010/03/15 07:00:39 45.118N 120.927W 20.7   14 km ( 8 mi) ESE of  Maupin, OR
map 1.3  2010/03/13 20:43:21 47.998N 121.906W 10.7    2 km ( 1 mi) NNE of  Lake Roesiger, WA
map 1.3  2010/03/13 08:02:30 48.150N 124.930W 26.8   33 km (21 mi) SW  of  Neah Bay, WA
map 1.2  2010/03/13 01:52:20 41.335N 121.973W  2.3   16 km (10 mi) ENE of  McCloud, CA
map 1.5  2010/03/11 17:42:20 46.514N 122.442W 18.3    4 km ( 2 mi) ESE of  Mossyrock, WA
map 1.0  2010/03/09 22:51:59 47.725N 121.829W 71.6    7 km ( 4 mi) ENE of  Lake Marcel-Stillwater, WA
map 1.7  2010/03/08 15:48:44 44.364N 122.862W 12.6   10 km ( 6 mi) ESE of  Brownsville, OR
map 1.3  2010/03/08 01:15:55 41.260N 122.012W 12.5   10 km ( 6 mi) E   of  McCloud, CA