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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]
Why the Geological Survey produced the earthquake map. In this file photo from 2018, a geologist collects samples of spatter for laboratory analysis after the eruption of Hawaii's Kilauea volcano ...
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
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.
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 suffer earthquakes frequently. The largest recorded earthquake, at an estimated 5.9 magnitude, was in 1897 near Blacksburg. [18]
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.
Cross-sectional illustration of normal and reverse dip-slip faults. The earthquake occurred in the Virginia seismic zone, located in the Piedmont region. [8] The Virginia Piedmont area was formed originally as part of a zone of repeated continental collisions that created the ancestral Appalachian Mountains, a process that started during the Ordovician period with the Taconic orogeny and ...
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