The Pacific Coast is tiptoeing around not one but two of the largest seismic triggers of the region’s modern history.

Although the quake was relatively modest, it was reportedly felt in several surrounding communities, including Enumclaw (12.5 ...

Californians have long dreaded the 'Big One'. But growing fears of a deadly earthquake are no longer confined to just the ...

Our guide on how to prepare for a tsunami alert as this year's Tsunami Preparedness Week approaches on March 22–30.

At the confluence of multiple tectonic plates, on the Pacific Ring of Fire ... The region also is at risk for a catastrophic Cascadia subduction zone earthquake, potentially registering in ...

Submarine topographic map of the Manila subduction zone. Showing the locations and depths of earthquakes with magnitudes of 5 (Mw) and above that have occurred along the Manila Trench. In order to ...