Columbia shaken by yet another small earthquake

April 09, 1993

Another minor earthquake rattled parts of Columbia early yesterday, the 12th since March 10, experts said.

The earthquake was reported about 5:10 a.m. yesterday in central Columbia registering between 1.0 and 1.5 on the Richter scale, said Emery Cleaves, director of the Maryland Geological Survey. There were no reports of damage or injuries.

The epicenter, or the origin of the earthquake, hasn't been determined yet.

But it did occur in the same general area as the others near Routes 29 and 32, Mr. Cleaves said.

"It's assumed there's some kind of fault that's slipping a bit," he said, adding there's not much movement, because the earthquakes have been very small.

Russ Needham, a geophysicist with the National Earthquake Information Center in Colorado, said the tremor was too small to register on their equipment.

Yesterday's earthquake was the 12th to rumble through the area since March 10, when a freak earthquake hit near the intersection of Routes 108 and 175. The earthquake with the biggest jolt registered 2.7 on the Richter scale about 11:30 p.m. March 14, experts said.

The series of earthquakes doesn't necessarily have to be a prelude to a bigger one. "We have no reason to say these small ones will cause a big one," Mr. Needham said.

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