5.0 Earthquake Shakes Up Seattle Area / Strongest tremor in 30 years, but damage is minor
Published 4:00 am, Monday, January 30, 1995
1995-01-30 04:00:00 PDT Seattle -- In a sharp reminder that western Washington sits astride the seismically active Pacific Rim, an earthquake with a magnitude of 5.0 rumbled through the Seattle- Tacoma area over the weekend.
No injuries or major damage were reported, but the quake, which hit at 7:11 Saturday night, was felt from Canada to central Oregon and as far east as Yakima, Wash.
"It was widely recorded," said Deiter Weichert of the Pacific Geoscience Centre in Victoria. "It was recorded by all our monitoring stations on Vancouver Island and up the West Coast, even to the Rocky Mountain Trench."
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Seismologists at the University of Washington said it was the most significant earthquake to hit the area in 30 years, when a 6.5 temblor caused substantial damage around Puget Sound.
The epicenter was placed about eight miles deep, halfway between Seattle and Tacoma near the town of Federal Way.
Seismologists said it was caused by movement laterally along a fault, and it was not a subduction- type quake, in which the leading edge of one tectonic plate dives under another. A subduction quake capable of an 8.0 or greater magnitude has long been anticipated in the Pacific Northwest.
Skyscrapers swayed in downtown Seattle, and grocery stores across a wide area lost items off shelves. The Washington State ferry dock at Vashon Island in Puget Sound was reported to have been damaged.
Drew Graham of KGMI Radio in Bellingham said the tremor "just made a couple of things in here swing around, things that were hanging."
Scientists said aftershocks probably will occur in the coming days.
The largest quake to hit western Washington in recent history was a 7.1 temblor near Olympia in 1949.