6.3 Magnitude Quake Strikes Off Coos Bay

At 8:07 a 6.3 magnitude earthquake struck some 296 miles off the coast of Coos Bay, Oregon. No Tsunami warning was issued and no damage from the quake has been reported.

Western Oregon residents reported feeling the earthquake, as did people in Washington state. According to the U.S. Geological Survey, people as far away as 460 miles felt tremors.

The magnitude 6.3 earthquake near the coast of Oregon occurred as the result of strike-slip faulting along the Blanco Fracture Zone, a transform fault marking the boundary between the Pacific Plate to the southwest and the Juan de Fuca Plate to the northeast.

At this location, the Juan de Fuca Plate slides past the Pacific Plate at a rate of 49 mm a year. The Juan de Fuca plate ultimately subducts beneath North America along the Cascadia subduction zone about 200 km to the east of today’s event; hence, this earthquake did not occur on the subduction zone, but rather is the result of Pacific:Juan de Fuca plate boundary interactions farther west.

Authorities said they had no reports of injuries or damage.

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