Environment ❯ Geology

Volcanology

Volcanic Activity Active Volcanoes Eruption Effects Volcanic Eruptions Eruptions Seismic Activity Hazards Volcanic Hazards Eruption Alerts Lava Flows

Mayon Volcano Triggers Evacuations as Philippines Raises Alert Level 3

Officials warn of sustained magmatic activity that could trigger rockfalls or moderate blasts.

Hikers Flee Eruption at Guatemala’s Santiaguito Volcano in Viral Video

Lava From Réunion’s Piton de la Fournaise Reaches the Sea for First Time Since 2007

Lava From Piton de la Fournaise Cuts Réunion’s RN2 for First Time Since 2007

Kīlauea’s Latest Eruption Lofts Lava to New Heights, Prompts Rare Ashfall Warning

Kīlauea’s Latest Summit Eruption Sends 30,000-Foot Ash Plume, Triggers Park and Highway Closures

Sabancaya Volcano Erupts With 3,400-Meter Ash Plume Over Arequipa as Orange Alert Holds

Popocatépetl Sends Ash Toward Southern Mexico City and Puebla as Activity Persists

Indonesia Keeps Mount Semeru at Highest Alert as Rescuers Lead 170+ Climbers to Safety

Kīlauea’s Latest Summit Burst Sends 1,100-Foot Fountains, Sets Record Effusion Rate

Lewotobi Laki-Laki Volcano Erupts with 18-Kilometer Ash Cloud

Mount Lewotobi Laki-Laki Erupts Again with 18 km Ash Plume

Mount Lewotobi Laki-Laki Blasts Ash Nearly 20 km in Two Explosions

Ongoing Mount Lewotobi Laki-Laki Eruption Halts Flights, Prompts Wider Evacuations

Guatemala’s Fuego Volcano Eruption Prompts Mass Evacuations as Pyroclastic Flows Advance

Etna Eruption Subsides with Ash Clearing Above Crater

Mount Etna Enters 13th Eruptive Phase with Intense Strombolian Activity

Kanlaon Volcano Erupts in the Philippines, Triggering Evacuations

Geologists Monitor New Thermal Steam Vent in Yellowstone as Activity Declines

Indonesia’s Mount Lewotobi Laki-Laki Erupts, Disrupting Flights and Forcing Evacuations