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Location of Marianna. The Marianna Fault is a fault located in the Crowley's Ridge area west of Marianna in eastern Arkansas. [citation needed] The discovery was first announced by seismologists on January 21, 2009. It is separate from the New Madrid seismic zone, [1] which is 100 kilometers (62 mi) to the east. [2]
The Guy–Greenbrier earthquake swarm occurred in central Arkansas beginning in August 2010. [2] The epicenters of earthquakes in the swarm showed a linear distribution, with a clear overall shift in activity towards the southwest with time, [3] and the largest event in the swarm was the 2011 Arkansas earthquake, at 4.7 on the moment magnitude scale.
Two-percent probability of exceedance in 50 years map of peak ground acceleration from the United States Geological Survey, released July 17, 2014. Earthquake swarms which affected the United States: 1962–71 Denver earthquake swarm [38] Enola earthquake swarm; 2008 Reno earthquakes; Guy-Greenbrier earthquake swarm
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According to the USGS, "ShakeMaps provide near-real-time maps of ground motion and shaking intensity following significant earthquakes. These maps are used by federal, state, and local organizations, both public and private, for post-earthquake response and recovery, public and scientific information, as well as for preparedness exercises and ...
The most recent earthquakes mean at least 129 have been detected in the Palmetto State since the start of 2022, according to South Carolina DNR. ... 111 earthquakes have hit the Columbia area ...
MARTIN COUNTY, Texas (KMID/KPEJ) – The United States Geological Survey recorded a 3.1 magnitude earthquake about 10 miles northwest of Stanton and about 19 miles northeast of Midland at around 8 ...
The New Madrid seismic zone (NMSZ), sometimes called the New Madrid fault line (or fault zone or fault system), is a major seismic zone and a prolific source of intraplate earthquakes (earthquakes within a tectonic plate) in the Southern and Midwestern United States, stretching to the southwest from New Madrid, Missouri.