Tephra formed by lava fountains during the ongoing Kīlauea summit eruption has created a new puʻu, or hill, southwest of ...

After the 1975 earthquake, there was a greater emphasis on monitoring the motion of the south flank. Hawaiian Volcano ...

Mount Shasta, a steep-sided Cascade Range stratovolcano in Northern California, looms above Little Glass Mountain, a thick obsidian flow erupted from the Medicine Lake shield volcano about 1,000 years ...

Topographic mapping has been a key component of volcano monitoring for decades, helping scientists to study morphologic changes and predict the paths of lava flows during eruptions. Lidar systems are ...

The submerged coconut grove at Halapē in Hawaiʻi Volcanoes National Park marks the former coastline that was inundated during the ground movement associated with the Nov. 29, 1975, magnitude-7.7 ...

TOBYHANNA, Pennsylvania -- A reengineering effort at Tobyhanna Army Depot (TYAD) is bringing new life to the M139 Volcano – a mine dispensing system originally fielded in the 1990s. The M139 Volcano ...

An Icelandic volcano system erupted for the third time since December on Thursday, in a phenomenon that could impact the world-famous Blue Lagoon hot springs. The eruption, which began around 6 a.m.

Iceland on Sunday lowered its aviation alert on its largest volcano after a fresh eruption on a nearby lava field prompted authorities to enforce a flight ban for several hours. The Bardarbunga ...

An "unusually large" ice volcano in Iceland could be about to blow after more than 130 earthquakes hit the region in a five-hour period, experts say. The earthquake swarm began in the northwestern ...