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The U.S. Geological Survey (USGS) reported that a magnitude 5.8 M w earthquake hit Virginia on Tuesday, August 23, 2011, at 17:51:04 UTC (1:51 pm Eastern Daylight Time). The quake occurred at an approximate depth of 3.7 miles and was centered in Louisa County (location at 37.936°N, 77.933°W), 5 miles SSW of Mineral, Virginia and 37 miles NW of Richmond, Virginia's capital. [3]
Earthquakes likeliest along Atlantic Coast, California, Alaska The most damaging earthquakes are likeliest to occur along the central and northeastern Atlantic Coast, which includes Washington D.C ...
2011 Virginia earthquake Washington (state) 8.7–9.2 January 26, 1700 1700 Cascadia earthquake West Virginia: 5.8 August 23, 2011 2011 Virginia earthquake Wisconsin: unk. May 6, 1947 1947 Wisconsin earthquake Wyoming: 7.2 August 17, 1959 1959 Hebgen Lake earthquake
The primary purpose of a seismometer is to locate the initiating points of earthquake epicenters. The secondary purpose, of determining the 'size' or magnitude must be calculated after the precise location is known. [citation needed] The earliest seismographs were designed to give a sense of the direction of the first motions from an earthquake.
According to the U.S. Geological Survey [U.S.G.S.], a 2.1 magnitude earthquake with a depth of 5.0 km rattled parts of Central Virginia around 10:46 p.m. on Monday, April 8.
Moderately damaging earthquakes strike between New York and Wilmington, Delaware, about twice a century, the USGS said, and smaller earthquakes are felt in the region roughly every two to three years.
Virginia has a low risk of earthquakes, [17] especially in the northern part of the state. The Virginia seismic zone has not had a history of regular earthquake activity. Earthquakes are rarely above 4.5 in magnitude because Virginia is located centrally on the North American Plate, far from plate boundaries. Locations near tectonic plates ...
More than 70 people reported feeling the earthquake. A 2.6-magnitude earthquake struck near the North Carolina-Virginia border around 5 a.m. on Tuesday, Oct. 25, the U.S. Geological Survey reports.