A 4.5 magnitude earthquake struck 70 miles northwest of Seattle early Monday, causing mild tremors in the region, with authorities warning of potential additional tremors

Fifteen years after the catastrophic 8.8 magnitude earthquake and tsunami in southern Chile, scientists predict a major quake in the mineral-rich north. Chile's seismically active location on the Ring of Fire makes it prone to such events,

An earthquake with a preliminary magnitude of 4.5 was recorded at 5:02 a.m. Monday, 6 miles east of Orcas Island.

A new international collaboration is surveying ancient landslide sites in two deep undersea canyons to better understand New Zealand’s tsunami risk; If some of the documented la

A moderate earthquake in the San Juan Islands jostled Whatcom County residents awake early Monday, rattling dishes and triggering an app-based warning system. Monday’s quake was at 5:02 a.m. and registered at a magnitude 4.

The Cascadia Subduction Zone, located off the coast, has the potential to trigger "the big one", a catastrophic event that could result in severe shaking and a tsunami, warns Tobin. The last significant earthquake in Washington was the 6.8 magnitude ...

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