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Minor Aftershock hits Seattle
Released: 3/1/2001

Contact Information:
U.S. Department of the Interior, U.S. Geological Survey
Office of Communication
119 National Center
Reston, VA 20192
Butch Kinerney 1-click interview
Phone: 703-648-4732

Carolyn Bell
Phone: 703-648-4463

A minor aftershock struck the Seattle area early Thursday morning, March 1, 2001. The aftershock, which struck at 1:10 a.m. local time, had a preliminary magnitude of 3.4 and was felt throughout the Seattle-Tacoma-Olympia area.

It was centered about 15 miles west-southwest of Tacoma at a dept of 52 kilometers or 34 miles. It is in the same vicinity of yesterday’s 6.8 earthquake. No damage was reported from the aftershock.

The aftershock follows a strong earthquake, with a preliminary magnitude of 6.8, which struck near Olympia, Washington, south of Seattle, at 10:55 a.m. PST on February 28, 2001.

The earthquake was centered at 47 degrees, 10 minutes, North; 122 degrees, 44 minutes, West. The epicenter was about 11 miles northeast of Olympia – between Olympia and Tacoma. The earthquake was about 49 kilometers deep.

The quake was felt across the Pacific northwest and there was moderate damage in Seattle, Tacoma and Olympia. Scores of injuries were reported and news reports said one person died from a heart attack which occured after the earthquake.

It was the second-worst earthquake in recent Washington history, according to USGS seismologists. An earthquake of magnitude 6.5 occurred in 1965 (3 people killed) and another of magnitude about 7.0 occurred in 1949 (8 people killed). The epicenter of today’s earthquake is near that of the 1949 earthquake.

The USGS reported that the area in which the February 28 earthquake struck is seismically quite active.

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