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Mini-quake taps Arbutus

Maybe it was my mother falling out of bed. The US Geological Survey is reporting a very mild earthquake at 8:28 a.m. today, centered 3 miles below the surface, just a mile west-northwest of Arbutus. The USGS put the epicenter just west of the UMBC campus. Here's the seismic record from the Maryland Geological Survey (red squiggles, right center of the chart.)

The tremor measured 1.3 on the Richter Scale, not even enough to be felt unless you're a seismometer. The last time we registered a quake you could feel was on Feb. 23, 2005. That tremor, centered near Dundalk, registered a whopping 2.1 on the the Richter Scale and was felt, or heard in several spots around the city.

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There are thousands of these "micro-quakes" each day around the world. If you did happen to feel, or hear this one, or if your dogs went crazy ... leave us a comment.

Here's the report from the USGS on this event. And here are some links to data on Maryland's earthquake history.


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