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Lists, Maps, and Statistics at United States Geological Survey (USGS) Earthquake history of the United States through 1970 at USGS; Earthquake Data and Information at National Centers for Environmental Information (NCEI) Thomas Fuller; Anjali Singhvi; Mika Gröndahl; Derek Watkins (June 4, 2019). "Buildings Can Be Designed to Withstand Earthquakes.
Historical earthquakes is a list of significant earthquakes known to have occurred prior to the early 20th century. As the events listed here occurred before routine instrumental recordings — later followed by discoveries of Earth's tectonic plates, [1] seismotomography imaging technique, [2] observations using space satellites from outer space, [3] artificial intelligence (AI)-based ...
They remain the most powerful earthquakes to hit the contiguous United States east of the Rocky Mountains in recorded history. [10] [11] [12] The earthquakes, as well as the seismic zone of their occurrence, were named for the Mississippi River town of New Madrid, then part of the Louisiana Territory and now within the U.S. state of Missouri.
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The 1975 Morris earthquake occurred in western Minnesota on July 9 at 14:54:15 UTC, or 9:54 a.m. local time. [2] The strongest instrumentally recorded rupture in the history of the state, it registered at magnitude 4.6 M n and had a maximum Mercalli intensity of VI ( Strong ).
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.
The 1857 Fort Tejon earthquake occurred at about 8:20 a.m. (Pacific time) on January 9 in central and Southern California.One of the largest recorded earthquakes in the United States, [6] with an estimated moment magnitude of 7.9, it ruptured the southern part of the San Andreas Fault for a length of about 225 miles (350 km), between Parkfield and Wrightwood.
An unusual East Coast earthquake shook millions of people from New York and Philadelphia skyscrapers to rural New England on Friday, causing no widespread damage but startling an area unaccustomed ...