Researchers studying a massive landslide in Alaska have detected strange seasonal seismic pulses caused by water freezing and ...

Beneath the steep walls of Alaska's Prince William Sound, an unstable mountainside is sending out sharp seismic bursts each autumn and winter. For years, these signals baffled scientists monitoring ...

It was just before midnight when the tsunami that started with an earthquake in Alaska’s Prince William Sound reached Washington state. The year was 1964. At La Push, a 7-foot wave knocked boats and a ...

Japan was struck by a new 6.9-magnitude earthquake on Friday morning, hitting a similar area of the Pacific coast to Monday night’s powerful 7.5-magnitude tremor. The new quake off Aomori prefecture ...

In Alaska, a federal grant that funded seismic data collection in order to warn people about tsunamis is being cancelled. Experts say cuts like this could make tsunami warnings less reliable. Millions ...

TOKYO (AP) — A powerful 7.5 magnitude earthquake struck off northern Japan late Monday, injuring 23 people and triggering a tsunami in Pacific coast communities, officials said. Authorities warned of ...