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On August 23, 2011, a magnitude 5.8 earthquake hit the Piedmont region of the Commonwealth of Virginia, United States, at 1:51:04 p.m. EDT.
2011 Virginia earthquake.
2011 Virginia earthquake.
| USGS-ANSS | ComCat |
| Local date | August 23, 2011 |
| Local time | 1:51:04 pm EDT |
| Magnitude | 5.8 Mw |
| Depth | 6 km (4 mi) |
Similarly, did the East Coast just have an earthquake?
A 4.7 magnitude earthquake occurred more than 100 miles off the coast of Maryland Tuesday night, according to the United States Geological Survey. The East Coast quake was recorded 136 miles off the coast of Ocean City, Maryland, according to the USGS.
In this manner, when was the last time Maryland had an earthquake?
— A 5.8 magnitude quake, centered in 35 miles northwest of Richmond, Va., in August 2011, one of the strongest ever felt in Maryland. — The U.S. Geological Survey says the strongest Maryland earthquake on official record was a 3.1 magnitude tremor in 1978 near Hancock in Washington County.
No magnitude 10 earthquake has ever been observed. The most powerful quake ever recorded was a magnitude 9.5 temblor in Chile in 1960. A magnitude 10 quake would likely cause ground motions for up to an hour, with tsunami hitting while the shaking was still going on, according to the research.