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

While the Chilkat Valley is not unique in facing landslides, the combination of steep slopes, heavy rainfall, aging ...

Greenlands Dickson Fjord experienced a colossal landslide that triggered a 650-foot mega-tsunami, causing the Earth to pulse ...

A new online portal by NASA and the Alaska Satellite Facility maps satellite radar meas-urements across North America, ...

Mountaineering rangers in Alaska have recovered the body of a Seattle man who died after falling 3,000 feet from a climbing route on Mount McKinley ...

Alex Chiu, 41, was ascending Mount McKinley's West Buttress climbing route with two others on Monday when he fell at a spot ...

The National Transportation Safety Board says a helicopter crash has killed two people on Alaska's remote North Slope.

For the last year, Alaska's Mount Spurr has been showing signs of a potential eruption on the horizon. If an eruption happens, it would likely occur at Crater Peak, shown in the background of this ...

Scientists have, for the first time, detected a landslide-generated tsunami using satellite data from a research ship.

Climate change has put Western Canada’s glaciers on track for devastating loss over the coming decades, with the southern ...