American Samoa is a United States territory which comprises the easternmost islands of a volcanic island chain formed by the Samoan hotspot in the South Pacific Ocean. Its small islands are the tops ...

New seismic imaging shows magma lingering beneath quiet Cascade volcanoes, shaping how scientists monitor and plan for eruptions.

James Dacey investigates a plan to use muons to peer inside the throat of Mexico’s famous volcano, Popocatépetl, to help predict the timing and extent of its fiery outbursts Fiery mountain ...

Several Indian airlines, including Air India and Akasa Air, cancelled their flights on Tuesday due to a disruption in air traffic over ash plumes from the volcano eruption in Ethiopia. Air India ...

A gigantic bulge in the north rim of the Yellowstone caldera is the latest sign of volcanic activity in the national park.

Volcanoes rarely erupt without warning, but the signals they send are often subtle, scattered and easy to miss. Now a new line of research suggests the forests that cloak many volcanoes quietly record ...

A new study has investigated the use of a new monitoring technique for early warning of a volcanic eruption. The research team compared the earthquake signals during two eruptions of Ontake Volcano in ...