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

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

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!” ...

The discovery has revealed a hidden process that could change how scientists understand volcanic systems.

Data from NASA's InSight mission suggests the Red Planet's Tharsis region is more active than previously thought and may be ...

The magma reservoir of the largest volcanic eruption of the Holocene is refilling. This Kobe University insight on the Kikai ...

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 ...

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

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

Social media videos showed people running into the streets as bright orange flames and smoke spewed into the sky.

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 ...