A major earthquake with a preliminary magnitude of 7.3 initially triggered a tsunami warning for the southern Alaska Peninsula. It was later downgraded to an advisory.

State officials are urging residents and visitors to prioritize earthquake and tsunami preparedness following the significant seismic event today.

The warning center runs the annual test each March as part of Tsunami Preparedness Week. It falls around the anniversary of the devastating tsunamis of the Great Alaska Earthquake of 1964.

A massive 7.3-magnitude earthquake struck off the southern coast of Alaska on Wednesday afternoon, briefly triggering tsunami warnings for coastal regions before being cancelled after further ...

A major earthquake with a preliminary magnitude of 7.3 initially triggered a tsunami warning for the southern Alaska Peninsula. It was later downgraded to an advisory.

The Pacific Tsunami Warning Center said a tsunami had been generated by the quake that could cause damage along the coastlines of all the Hawaiian islands.

A powerful earthquake that prompted tsunami warnings and evacuations Tuesday night caused serious shaking in some Alaska Peninsula communities but little damage.

Packing a disaster preparedness kit for a massive Cascadia earthquake and tsunami, as described by The New Yorker magazine, can intimidate even the most conscientious Pacific Northwest resident.