Lava domes are rounded, steep-sided mounds built by magma that is highly resistant to flow, usually either dacite or rhyolite. Such magmas are typically too viscous to move far from the vent ...

Kilauea's volcanic activity on Wednesday marked the fifth episode since the latest eruption began in December 2024.

One of the world’s largest lava domes has been discovered in the Kikai Caldera south of Japan’s main island. (CN) – One of the world’s largest lava domes has been discovered in the Kikai Caldera south ...

Rescuers helped an injured hiker and their climbing partner off Black Butte's treacherously icy trail. What makes Mt. Shasta's lava cone a challenge.

Scientists say each episode of lava fountaining since the initial eruption began on Dec. 23, 2024, has continued between 14 ...

Dramatic new footage from Santiaguito volcano captures its intense activity, with drone and thermal imagery revealing ...

"Small lava dome fountains in the north vent are feeding short lava flows in the southwest part of the caldera," the USGS wrote in an Instagram post on Wednesday. "Volcanic gas emissions are ...

Episode 6 of the Big Island volcano’s latest eruption, which began the week of Christmas 2024, is underway as lava flows onto ...