An aerial view of Haleakala volcano’s southern slope of East Maui.

Scientists can map the surface of Mars in sharper detail than stretches of Earth’s own ocean floor. Nowhere is that gap more glaring than the Bismarck Sea, a deep, geologically tangled basin north of ...

The volcano in the Bismarck Sea could lead to the formation of a new island, scientists say. It has been erupting for weeks now, sending plumes 10,000 feet above the ocean surface. Experts are curious ...

The ShakeAlert earthquake early warning system has been rapidly expanding since its launch in 2021. Now, researchers at ...

The previous chapters reviewed the hazards to property and life from Mount Rainier and outlined research needed to provide for better understanding of their nature and frequency of occurrence. This ...

For people living in communities in the shadow of a volcano, a long silence may give the impression that the geological beast is not merely sleeping but has gone extinct. But, as research detailing ...

Roughly three-quarters of all volcanic activity on Earth takes place deep beneath the ocean surface, along chains of seafloor ...

SAN JUAN, Puerto Rico (AP) — Researchers have installed a seismometer atop an active volcano called Kick 'em Jenny under the Caribbean Sea to warn of eruptions or earthquake activity, scientists said ...

Tour guides near the summit of Mount Etna in Italy have been told to stay away as the volcano erupts again, a recurring ...

On May 22, 1925, Lassen Peak in California had its most powerful eruption in a series of eruptions that occurred in the Cascade Range between 1914 and 1917. That eruption, which occurred 111 years ago ...