Southern California took stock on Friday of the damage from an intense bout of rain. Among the most dramatic scenes: a Fire Department vehicle that was swept to the sea.

Scientists are keeping a close eye on three US volcanoes after their threat levels rose Thursday, suggesting eruptions may be ...

A new atmospheric river is slamming California, including fire-ravaged Los Angeles, where residents are bracing for the possibility of mudslides and landslides.

After a wildfire, the danger continues, especially during torrential rain that can set off fast-moving landslides known as ...

Street flooding and mudslides, and a weak tornado, were reported across the region as the storm barreled through Thursday evening.

Kilauea, one of the world's most active volcanoes, has been erupting on and off for nearly two months since it burst to life on Dec. 23. The eruption has been taking place at the the volcano's summit ...

As Kilauea erupts a 330-foot-tall fountain of lava, officials warn of hazards from volcanic gas that may affect nearby ...

Volcanoes can be morbidly fascinating for plenty of reasons, as can the lava they release. But what effect might all that ...

The goal is to show the power of moving water. So let's see a close-up of a waterfall, or, an exploding wave, or, a fast, rushing river. Look at the examples provided. Hint, perspective can make a big ...

The U.S. Army Corps of Engineers has released water from two reservoirs in the foothills of the southern Sierra Nevada to ...

It's this basaltic, low silica composition lava flows that is a particularly good host to groundwater ... And in late summer, ...

A small fountain can be seen on the south side with a small lava flow emerging. Each episode since 23 December has continued for 13 hours to eight days, the observatory said. The pauses have ...