A massive earthquake off the Pacific Northwest coast is not a distant abstraction but a well-defined geological threat. Along the Cascadia Subduction Zone, where one tectonic plate dives beneath ...

Nine seismic stations in Alaska are set to go dark this month, leaving tsunami forecasters without important data used to determine whether an earthquake will send a destructive wave barreling toward ...

Japan’s weather agency has issued its highest-level warning that a megaquake could follow Monday’s 7.5-magnitude tremor. Authorities urged anyone living near the Pacific coast to remain vigilant ...

A 7.6 magnitude earthquake triggered 10 ft high tsunami warnings for across the northeastern coast of Japan on Monday, the country's meteorological agency said. That tsunami warning has since been ...