Timeline of earthquakes felt in Maryland

Montgomery County (Virginia)Howard CountyMontgomery County (Maryland)

Some significant quakes felt in Maryland

Earliest

April 24, 1758: The 30 seconds of shaking in Annapolis were preceded by subterranean noises. Also felt inPennsylvania.

Largest

1811-1812: Series of quakes centered in New Madrid, Mo., were felt in Maryland and much of the East.

Aug. 31, 1886: The great quake in Charleston, S.C., was felt in West Virginia, Maryland and Pennsylvania.

May 31, 1897: A quake centered in southwestern Virginia, was felt in Baltimore, Southern Maryland and the Eastern Shore.

Nov. 1, 1935: A 6.2-quake in northeastern Ontario was felt from Cumberland to Baltimore andChestertown.

Sept. 4, 1944: A quake in the St. Lawrence River Valley was felt in Baltimore andWestminster.

Most recent

1993: A flurry of nearly two dozen small tremors shook Howard County, with no damage reported.

Feb. 23, 2005: A series of shakes measured between 2.0 and less, five and a half miles beneath the epicenter inDundalk.

Oct. 8, 2007: A magnitude 1.0 tremor rattled neighborhoods just west of Arbutus at 8:30 a.m.

July 16, 2010: A 3.6-magnitude tremor just after 5 a.m. was centered in Germantown,Montgomery County. It was felt as far away as southern New Jersey.

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