USGS - 3.6 Earthquake in Metro Washington D.C. USA

[sharon sanders]

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<hr> Magnitude 3.6 - POTOMAC-SHENANDOAH REGION

2010 July 16 09:04:47 UTC

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Earthquake Details

• This event has been reviewed by a seismologist.

<table id="parameters" summary="Earthquake Details"><tbody><tr><th>Magnitude</th><td>3.6</td></tr> <tr><th>Date-Time</th><td>

• Friday, July 16, 2010 at 09:04:47 UTC
• Friday, July 16, 2010 at 05:04:47 AM at epicenter

</td></tr> <tr><th>Location</th><td>39.167?N, 77.252?W</td></tr> <tr><th>Depth</th><td>5 km (3.1 miles) set by location program</td></tr> <tr><th>Region</th><td>POTOMAC-SHENANDOAH REGION</td></tr> <tr><th>Distances</th><td>15 km (10 miles) NW of Rockville, Maryland
30 km (15 miles) ENE of Leesburg, Virginia
35 km (20 miles) NW of WASHINGTON, D.C.
70 km (45 miles) WNW of ANNAPOLIS, Maryland
</td></tr> <tr><th>Location Uncertainty</th><td>horizontal +/- 13.3 km (8.3 miles); depth fixed by location program</td></tr> <tr><th>Parameters</th><td>NST= 15, Nph= 15, Dmin=44.7 km, Rmss=1.49 sec, Gp=133?,
M-type="Nuttli" surface wave magnitude (mbLg), Version=6</td></tr> <tr><th>Source</th><td>

• USGS NEIC (WDCS-D)

</td></tr> <tr><th>Event ID</th><td>us2010yua6</td></tr></tbody></table>

http://earthquake.usgs.gov/earthquakes/recenteqsww/Quakes/us2010yua6.html#details

 

[sharon sanders]

Re: USGS - 3.6 Earthquake in Metro Washington D.C. USA

hat tip Sally Furness-


A very rare event.


District of Columbia


Earthquake History

No historical earthquake has been centered within the District of Columbia.

Ground vibrations from earthquakes in such seismic regions as the St. Lawrence River Valley, Missouri, Ohio, Virginia, and South Carolina have been felt by D.C. residents, but have caused no damage. A great earthquake which did considerable damage at Guadeloupe, West Indies, was felt in the Eastern United States, especially at Washington, D.C., in 1843.

The earliest shock that may have affected some sections of Washington occurred on April 24, 1758. Its probable center was near Annapolis, Maryland, and it was felt into Pennsylvania.



more.....


http://earthquake.usgs.gov/earthquakes/states/district/history.php