An earthquake measuring 5.5 on the Richter scale on Friday evening struck Iran's north-central province of Semnan.

An underwater volcano known as Axial Seamount has shown signs of a possible eruption off the coast of Oregon. Volcanologist ...

As another school year ends, the USGS Hawaiian Volcano Observatory welcomes two new summer interns: Kamalani Poepoe and Ruth ...

As another school year ends, the U.S. Geological Survey Hawaiian Volcano Observatory welcomes two new summer interns: Kamalani Poepoe and Ruth Gale. With an ongoing eruption at the summit of Kīlauea, ...

Dozens of flights to and from Indonesia's resort island of Bali were cancelled on Wednesday, according to authorities and the ...

There were no immediate reports of injury after Mount Lewotobi Laki-laki ejected a plume of smoke and ashes on Tuesday night. An eruption there killed 10 people last year.

Slow magma flows, small chambers, and hot rock all contribute to surprise volcano eruptions that occur without any prior ...

A 5.6 magnitude earthquake that struck off Peru’s central coast Sunday, rattling Lima and the port city of Callao, has left ...

USGS Hawaiian Volcano Observatory geologists visited the western rim of Halemaʻumaʻu crater for a closer look at the active ...

The Mount Veniaminof study may help prepare for eruptions for other volcanoes near major population centers around the world.

Subduction zones, where one tectonic plate dives underneath another, drive the world’s most devastating earthquakes and ...

The Kaiser effect, which is known as a stress memory effect, predicts that seismic events occur only when the previous ...