A lightly populated stretch of Alaska’s southern coast was under a tsunami warning after the magnitude 7.3 quake was felt throughout the region.

The National Weather Service said there is no tsunami threat to Hawaii after a 7.2 magnitude earthquake shook the Alaska Peninsula.

This fault line, stretching from Northern California to Canada, could trigger a catastrophic wave event threatening the Pacific Northwest, Alaska, and Hawaii.

Tsunamis pose a risk to the entire California coast. But should a major one strike, how bad could it be? A single tsunami likely won't cause the worst-case scenario for every region. But in total ...

Distant-source tsunami: More than 350 people could die or be injured along the Southern California coast if people wait to evacuate half an hour after an official evacuation warning is given.

In a worst-case tsunami, parts of Alameda, Oakland and Berkeley could be flooded up to an 18-foot elevation, California officials said in new study.

The risk of flooding from a major tsunami may be greater than many realized along California’s coastline, state officials reported in new study.

Some sections of Northern California's coast are considered vulnerable to tsunamis. Here's where those locations are and how to best prepare.