People reported feeling the earthquake as far as south Pierce County, north of Seattle and around Port Orchard.

A 4.5 magnitude earthquake by Orcas Island was the largest to hit Washington since 2020. Here’s how you can prepare for even ...

PORTLAND, Ore. (KOIN) – A new study mapping the Cascadia Subduction Zone is giving scientists clues about the state of the ...

Non-volcanic tremor ramp up precedes slow slip in Cascadia by about a day, indicating that brittle-creeping process ...

A string of earthquakes in California last week saw residents urged to 'remain alert' amid warnings bigger tremors could be on the way in a neighbouring state ...

The Cascadia Subduction Zone, capable of producing a 9.0 magnitude earthquake, last produced a major quake in 1700. The fault ...

Subduction zone earthquakes: This earthquake results from the tension of an oceanic plate slipping beneath a continental ...

Residents are urged to secure household items, maintain emergency kits, and participate in statewide drills such as the Great ...

Scientists are sounding the alarm after a series of earthquakes rocked the West Coast last week, warning a major seismic event is 'inevitable.' Earthquakes trigger tsunamis by causing the ocean ...

Saddle Mountain Fault and more), which could cause earthquakes and very intense shaking/ "Finally, off the coast of Washington is the Cascadia Subduction Zone – a 700-mile long fault capable of ...

The Cascadia subduction zone fault could kill thousands and render the greater Pacific Northwest unrecognizable during its next big slip. Researchers think the region is due for a devastating 8.0 ...

A 3.2-magnitude earthquake shook parts of east King County early Thursday afternoon, just hours after a similar quake in Bremerton.