Seismicity has decreased” from 30 events per hour at the peak to a few per hour as of Saturday morning, the U.S. Geological Survey said Saturday.

Magma from the mantle finds its way to the surface, where it erupts as lava or ash and gas—sometimes in spectacular spurts, ...

SEATTLE (AP) — Officials are tracking the largest swarm of earthquakes in more than 15 years on Washington’s Mount Rainier ...

Have you heard or read about the Axial Seamount? The Axial is an underwater volcano located approximately 480 kilometers ...

Why do researchers believe an underwater volcano off the Oregon Coast will erupt in 2025? Researchers at Oregon State University's Hatfield Marine Science Center are monitoring the Axial Seamount ...

Fortunately for residents of California, Oregon and Washington, Axial Seamount doesn't erupt explosively, so it poses zero risk of any tsunami.

The volcano, known as Axial Seamount, is more than 4,900 feet beneath the Pacific Ocean and 300 miles off the Oregon coast, but it is showing signs it will soon erupt for the first time since 2015.

A mysterious and highly active undersea volcano off the Pacific Coast could erupt by the end of this year, scientists say.

Nearly a mile deep and about 700 miles northwest of San Francisco, the volcano known as Axial Seamount is drawing increasing scrutiny from scientists who only discovered its existence in the 1980s.

Nearly a mile deep, the Pacific Ocean volcano known as Axial Seamount is drawing increasing scrutiny from scientists who only discovered its existence in the 1980s.

The Axial Seamount, the most active volcano in the Pacific Northwest, has been making headlines lately with signs that it could erupt sometime this year.

A volcano eruption near Oregon is brewing — but don't panic about Axial Seamount. The undersea volcano has been attracting attention for months as scientists prepare for an eruption they expect ...