Summary
A series of at least 18 earthquakes occurred far off the coast of Washington state early Sunday, with the strongest measuring up to magnitude 4.2. These earthquakes did not cause any tsunami and posed no threat to coastal communities.
Key Facts
- The earthquakes happened about 250 miles offshore from Washington state.
- The largest earthquake in the sequence had a magnitude of 4.2.
- The earthquakes occurred between midnight and 9 a.m. on Sunday.
- The Pacific Northwest Seismic Network noted the swarm happened at the Juan de Fuca Ridge.
- The U.S. Geological Survey confirmed there was no risk of a tsunami.
- The earthquakes were not close to the Cascadia Subduction Zone or the Axial Seamount undersea volcano.
