A magnitude 4.3 earthquake was recorded early Monday morning in the Pacific Ocean west of Bandon, Oregon, according to seismic monitoring reports.
The quake occurred at approximately 12:44 a.m. and was located roughly 80 to 120 miles offshore of the southern Oregon coast. The tremor originated in a seismically active region near the Blanco Fracture Zone, an underwater transform fault system where oceanic tectonic plates slide past one another.
Earthquakes of this size are relatively common in offshore areas of the Pacific Northwest and are rarely felt on land, particularly when they occur this far out at sea.
The broader region sits near the Cascadia Subduction Zone, where the Juan de Fuca Plate is slowly pushing beneath the North American Plate. While the Cascadia zone is known for its potential to produce large earthquakes, most of the smaller seismic activity detected offshore each year is related to movement along nearby fracture zones like Blanco.
At this time, no damage or tsunami concerns have been reported, and the quake appears to be part of the routine seismic activity that occurs beneath the Pacific Ocean along the Oregon coast.
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Scientists continue to monitor the region closely as part of ongoing efforts to better understand earthquake patterns in the Pacific Northwest.
