Japan’s new earthquake-detection network lengthens warning times, and researchers in Wales have harnessed nuclear blast ...

Federal forecasters issued their first flood warning at 1:14 a.m. on July 4. Local officials haven’t shed light on when they saw the warnings or whether they saw them in time to take action.

That’s how much time passed from when the National Weather Service sent out its first flash flood warning for part of Kerr ...

“Move to higher ground now,” the police department said. “Be safe and move to higher ground,” said the county. The water had ...

The two survivors of the deadly Lake Tahoe tragedy that claimed eight lives have been credited with making a crucial decision ...

A search continues for one person still missing after seven others were killed when a boat capsized on Lake Tahoe in ...

Get the latest news on President Donald Trump’s second term in the White House and the Republican-led Congress.

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.

Tsunamis pose a risk to the entirety of the California coast. But should a major one strike, how bad could it be?

Snider said the tsunami warning from last week — issued in the wake of a magnitude 7.0 quake that struck 30 miles off the coast of Humboldt County — is a good reminder that this type of event ...