A tsunami advisory has expired for coastal areas south of Santa Barbara County on Wednesday morning, the National Weather Service says. The entire West Coast of the U.S. was placed under a tsunami ...

Put away the doggles, at least for now: Mount Spurr, a volcano about 80 miles west of Anchorage, is no longer primed to erupt anytime soon. The Alaska Volcano Observatory on Wednesday reduced its ...

SEATTLE — One of the largest earthquakes in recorded history struck Tuesday afternoon off the coast of Russia, prompting tsunami alerts to go out across the West Coast of the U.S. But what does each ...

Depending on the nature and severity of the situation, different types of alerts may be issued. Understanding these alert levels helps ensure that everyone knows what to expect and how to respond when ...

The Philippines on Tuesday raised its alert level for the Mayon volcano in the central province of Albay, warning of "potential explosive activity" in the coming days or weeks and advising people to ...

The Philippine Institute of Volcanology and Seismology (Phivolcs) on Thursday raised the alert status of Mayon Volcano in ...