Magnitude 4.6 Earthquake Recorded Off Oregon Coast Near Coos Bay
Two earthquakes, magnitudes 4.6 and 3.0, were recorded off the Oregon Coast near Coos Bay early Tuesday morning, just 12 minutes apart.

Portland, OR, July 21, 2026 —
A seismic event measuring 4.6 on the Richter scale was detected off the coast of Oregon near Coos Bay early Tuesday morning. The earthquake occurred shortly after another tremor of magnitude 3.0 in the same vicinity.
The two earthquakes were recorded just 12 minutes apart. The U.S. Geological Survey confirmed the seismic activity, which occurred in the Pacific Ocean off the southern Oregon coast.
Further details regarding the exact time of the quakes and their precise location relative to the coastline were not immediately available. There were no immediate reports of damage or injuries resulting from the tremors. Information on the depth of the earthquakes was also not provided.
Coastal communities in the region, including Coos Bay, are located in a seismically active zone. While smaller earthquakes are not uncommon, the magnitude 4.6 event is noteworthy. Residents in coastal areas often monitor seismic activity due to the region’s geological setting.
Officials have not released further information regarding the cause of the seismic activity or any potential aftershocks. The public is advised to stay informed through official channels for any updates on this developing situation.
Story summarized from the original created by Josh Cozart on www.koin.com, see more information here.