An earthquake centered 6 miles east-northeast of Dover, Delaware, hit the Mid-Atlantic region late Thursday afternoon, shaking buildings and people, but causing no apparent damage. To the east, the hard basement rocks are overlain by a blanket of softer sediments that thickens toward the Atlantic Ocean. That's when a 5.8 magnitude earthquake struck near Richmond, Virginia. Earthquake energy can travel well through these hard, cold ancient rocks, in contrast with areas such as California where there is abundant faulting and softer rocks, which absorb the energy more quickly.The DGS will update this page with additional information, as it becomes available, on the earthquake of August 23, 2011.© 2020 Delaware Geological Survey, University of Delaware, Newark, DE 19716-7501Geologic and hydrologic research and exploration for Delaware Seismograph recording of the August 23, 2011 earthquake "It just felt like a train going by, but there aren't any trains around here," said Gustavo Vila, an Anne Arundel County resident.A spokesman for New Jersey State Police, Sgt. (USGS Public domain.
That did not happen. (USGS Public Domain)"Did You Feel It?" Thursday’s earthquake magnitude was a way from matching a 2011 temblor that was felt along the East Coast, including parts of Delaware. In the area of central Virginia near the earthquake epicenter, intensities of VII or "Very Strong" were reported, a level strong enough to make standing difficult and to damage poorly built structures. After assessing Delaware’s roadways and bridges afterward, state transportation officials reported no damage or closures.According to the U.S. Geological Survey, the state has a spotty, infrequent relationship with earthquakes.Delaware residents noted effects from two earthquakes even before the state entered the Union in 1787, though neither caused damage in Delaware. USGS says the quake struck at 4:45 p.m. Before Thursday, the most recent earthquake in Delaware was a magnitude 1.2 in April 2005. ! Last time that happened, I was freshman at @UDelaware . !It is a friends business hes trying to get up and running help him out by taking the … The August 23 temblor fell in the upper end of the Moderate strength range, between Richter magnitudes 5.0 and 5.9. As he reacted to the loud noise and questioned what was happening, the woman on the line — who could hear the noise because the speaker was on — answered him.“The lady said, ‘You just had an earthquake. This 5.9 event had considerably more energy than the magnitude 3.8 quake that occurred in Delaware in 1973.The Virginia Geological Survey notes that the earthquake activity in the area is associated with old faults related to movements of the earthâs tectonic plates related to ancient mountain building episodes that were followed by the opening of the Atlantic Ocean about 150 million years ago. This is the largest earthquake to occur within about a 90 mile radius since 1994 when a M4.6 event was recorded near Reading, Pennsylvania, and it might be the largest in Delaware since an earthquake of unknown magnitude near Wilmington on October 9, 1871. These two categories fit most of our reports from Delaware.The Richter scale measures the energy released by an earthquake.
The quake started about five miles underground.Little Creek Mayor Glenn Gauvry said the shaking caused him to fall off the couch and also upset his pet.Mr. Go like and spread the word!!! ET and was centered about 6 miles east-northeast of Dover, Delaware. The rare mid-Atlantic earthquake was about 6 miles east-northeast of Dover and was registered at a depth of 5 miles, the US Geological Survey reported. It sounded like a train and lasted about a second. You can also read the "We have not received any reports of damage at this time. “Obviously, on the East Coast, earthquakes are not very common.”Some people in central Kent County, given their proximity to Dover Air Force Base, thought the sound and shaking they felt was a plane crash or explosion.Mr. Those rumors were quickly debunked.At the time, the Delaware Emergency Management Agency reported minimal power outages and a single gas line rupture after the tremor hit. Find out what's happening in the world as it unfolds.CNN's Dave Alsup and Rob Frehse contributed to this report. The USGS has so far received more than 16,000 reports on its Since 1973, several other earthquakes were recorded north of the Dover event on the New Jersey side of the Delaware Bay and Delaware River.
was back in August of 2011. Moderately damaging earthquakes strike in the urban corridor roughly twice a century and smaller earthquakes are felt about every 2-3 years.Field crews from Carnegie Institute, the University of Maryland, Columbia University and Lehigh University and USGS are deploying seismometers in Delaware and New Jersey to record aftershocks.If you felt this earthquake, report your experience on the The USGS operates a 24/7 National Earthquake Information Center in Colorado that can be reached for more information at 303-273-8500.The November 30, 2017 earthquake in Delaware was felt in major cities along the U.S. East Coast. The opening of the Atlantic Ocean was accompanied by cracking of the earth's crust, or faulting, along eastern North America. One group went to Port Mahon, near where the earthquake originated, to check the company’s fire boat docked there.As of 6 p.m., no damage had been reported outside of a few plates and pictures being knocked over from the force, he said.He encouraged residents to check their homes today just in case the structure may have been affected.When the 2011 earthquake affected Kent County, Mr. Bundek was at work on the telephone with a software company representative. More than 570 people were killed, and thousands of structures in Erciş, Van, and other nearby towns were destroyed. A man who lives near Baltimore told CNN affiliate WJZ that he recognized the feeling from his days in California. The last time people around the Delaware Valley jumped from their chairs and yelled "what was that?" It was the strongest recorded earthquake in the state's history, Jaime Tomlinson, a geologist with the Delaware Geological Survey, said.
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