Magnitude 3.8 earthquake shakes Oak Harbor, WA: Felt around Puget Sound

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A magnitude 3.8 earthquake that struck near Oak Harbor Wednesday night was felt by hundreds of people, according to the U.S. Geological Survey (USGS).

According to the USGS, the quake struck at about 11:35 p.m. in Crescent Harbor at a depth of 15.7 miles. 

Multiple earthquakes strike in WA's Crescent Harbor

Timeline:

The earthquake was part of a series of quakes and aftershocks in the same general area:

  • 11:34 p.m.: Magnitude 2.4
  • 11:35 p.m.: Magnitude 3.8
  • 11:48 p.m.: Magnitude 2.3
  • 12:07 a.m.: Magnitude 1.4
  • 3:50 a.m.: Magnitude 2.0

Local perspective:

As of 6 a.m. Thursday, about 1,300 people in the Puget Sound region reported feeling the earthquake. According to the USGS Community Internet Intensity Map, reports came primarily from Whidbey Island and Skagit County, with some as far south as Joint Base Lewis-McChord and others from Victoria and Vancouver, British Columbia.

What you can do:

Anyone who felt the quake is encouraged to report it to the USGS.

Big picture view:

Washington sits along the Cascadia subduction zone, where the Earth’s tectonic plates are constantly shifting and earthquakes are common. Geologists say damage typically does not occur unless an earthquake's magnitude exceeds 4.0 or 5.0.

The Source: Information in this story comes from the United States Geological Survey.

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