Environment ❯ Natural Phenomena

Volcanic Activity

Eruptions Air Quality Ash Clouds Lava Flows Seismic Activity Impact on Communities Eruption Effects Hydrothermal Systems Lava Fountains Monitoring

Mount Rainier Lahars Could Reach Orting, Puyallup and Sumner in About 30 Minutes, Scientists Warn

Renewed warnings show sudden glacier-fed mudflows can give residents only minutes to reach higher ground.

Ubiquitous Carbon Film Found to Control Static Charge Flow on Insulating Oxides

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

Scientists Confirm Hydrothermal Activity at Enmedio Submarine Volcano

Magnitude 4.1–4.4 Quake Between Tenerife and Gran Canaria Triggers Closer Scrutiny of Offshore Seismic Zone

Kanlaon Volcano Erupts Explosively, Sending 2,000-Meter Ash Plume Over Negros

Réunion’s Piton de la Fournaise Erupts Again, Health Advisory Issued Over Volcanic Gases

Yellowstone Uplift Spans 19 Miles as Ground Rises About an Inch Since July

Canary Islands Tighten Teide Monitoring After Rare Seismic Vibration Repeats

El Chichón Unrest Persists as Mexico Maintains Yellow Alert

Sheveluch Sends Ash to 9 km in Short Burst as Ongoing Eruption Prompts Flight Advisories

Piton de la Fournaise Eruption Ends After Two Days on Réunion

Kīlauea’s Summit Activity Prompts Aviation Code Orange as Short Eruptions Continue

Mount Etna Enters New Eruptive Phase With Lava Advancing Toward Valle del Bove

Etna Erupts With Lava Fountains as Italy Raises Alerts

Mount Etna’s Lava Fountains Hit 400 Meters as Red Aviation Alert Remains in Place

Kīlauea Marks One Year of Eruption With 39th Summit Fountaining Episode Reaching 1,400 Feet

Kīlauea Eruption Subsides After Unusual Three-Vent Outburst

Kīlauea Erupts Again With 400-Foot Lava Fountains in 37th Summit Episode