Roughly 80 percent of all volcanic eruptions on Earth happen underwater, far from any seismograph station or satellite camera. The planet’s official volcano catalogs list about 1,350 potentially ...

Scientists discovered Mount Fuji's ground uplift during storms was caused by rain, not magma. Years of GPS data revealed a ...

Communities across eastern Indonesia’s Flores Island face another round of volcanic disruption after the Lewotobi volcano ...

Scientists know that changing tree leaves can indicate when a nearby volcano is becoming more active and might erupt. In a new collaboration between NASA and the Smithsonian Institution, scientists ...

Borehole tiltmeters have been used by the USGS Hawaiian Volcano Observatory since the early 1970s and have since become an essential part of HVO’s volcano monitoring program. An older style of ...

This week the U.S. Geological Survey Cascades Volcano Observatory, in cooperation with the U.S. Forest Service and Mount Hood National Forest, installed three new volcano monitoring stations on the ...

The 1980 Mount St. Helens eruption remains the deadliest in U.S. history, fundamentally changing how scientists monitor volcanic activity.

Add Yahoo as a preferred source to see more of our stories on Google. Volcanoes in Alaska, Washington state, Oregon and Hawaii have been rumbling and even spewing lava, enough to spark a swarm of news ...

Add Yahoo as a preferred source to see more of our stories on Google. Nov. 20—The Senate Committee on Energy & Natural Resources has reapproved legislation that increased monitoring of Washington's ...

HVO plans to be back next year for another round of monitoring network maintenance, strengthening partnerships, and continuing to serve the people of American Samoa. If you want to learn more about ...

A spending freeze could disrupt systems that warn communities when eruptions appear imminent. By Raymond Zhong When the fuming and rumbling at Mount Spurr, a giant volcano northwest of Anchorage, ...