Understanding what triggers large volcanic eruptions is crucial for hazard assessment, but the exact mechanism driving these ...

A recent study reveals that the Poás volcano has changed its eruption pattern, redefining the global ash-related risk map.

If only there were a simple trick to stop a massive volcano from spewing out lava. Like maybe plugging it up with good old ...

Kīlauea’s 2026 eruption shows increased lava fountains and ash spread, with volcanic plumes affecting communities up to 50 ...

Tephra is fragmented volcanic material — including ash, rock and strands of volcanic glass — blasted into the air during an ...

Volcano Watch” is a weekly article and activity update written by U.S. Geological Survey Hawaiian Volcano Observatory ...

After nearly 12,000 years in dormancy, a volcano in Ethiopia has erupted and hurled ash over unsuspecting communities. It's assumed that Hayli Gubbi, located in the Afar region of northeastern ...

Geochemical analysis of erupted tephra samples over the past decade help scientists understand the temperature of Kilauea’s shallow magma system under the summit — and things have been “heating up!” ...

Kīlauea, one of the most active volcanoes in Hawaii, had a series of violent steam explosions in 1924, and scientists discovered the cause.

SHOCKING footage shows the moment a volcano erupted in the Philippines, sending an ash cloud shooting three miles into the ...

Volcano Watch is a weekly article and activity update written by US Geological Survey Hawaiian Volcano Observatory scientists and affiliates. This photo shows the gap between the south (left) and ...

Volcano eruption on the French island of La Rèunion creates 'lava haze' as it reaches the Indian Ocean ...