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.

The interior of the sphere is lined with 1,200 lava tiles in 24 shades of red, green, and cyan, with the color gradations evoking the flow of energy from the planet’s core to plant life on the ...

"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 ...