Lightning and ash plume dynamics reflected eruption behavior and signaled the onset of fast-moving rock and gas flows during the 2015 eruption of Chile's Calbuco volcano.
volcanoes
Posted inNews
Sound Waves Help Scientists Track Volcanic Eruptions
When sound waves hit the ground, they shake seismometers like earthquake waves. Scientists can now use these sound-induced seismic waves to investigate volcanic activity.
Posted inNews
Asphalt Volcanoes Erupt in Slow Motion
Natural asphalt seeps on the ocean floor provide a stable home for diverse marine life that sequesters greenhouse gases.
Posted inResearch Spotlights
Icelandic Eruption Caused Record-Breaking Sulfur Dioxide Release
Satellite and ground-based data reveal sulfur dioxide flux, trace element release, and preeruption magma movement.
Posted inResearch Spotlights
Fewer Tropical Cyclones Form After Volcanic Eruptions
Volcanic eruptions aren't all bad—in some cases, they can lower the frequency of tropical cyclones in the North Atlantic by emitting sulfate aerosols.
Posted inResearch Spotlights
Can We Predict How Volcanic Ash Disperses After an Eruption?
Researchers investigate what factors influence how particles from a plume spread following a volcanic eruption.
Posted inResearch Spotlights
Massive Carbon Dioxide Stores Beneath Mammoth Mountain
Gas in rocky pores beneath the surface of California's Mammoth Mountain could fuel dangerous carbon dioxide emissions for the next 28 to 1100 years.
Posted inResearch Spotlights
Radar Technique Shows Magma Flow in 2014 Cape Verde Eruption
The European Space Agency's Sentinel-1 satellite captures volcanic surface changes that reveal the flow below.
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Scientists Discover a New Source of Atmospheric Carbon Dioxide
In an African region where continental crust is pulling apart and fracturing—the East African Rift zone—the area's many faults are slowly releasing a large amount of carbon dioxide.
Posted inResearch Spotlights
Forecasting Eruptions at Restless Calderas
Scientists review decades of data on swarms of earthquakes, surface deformation, degassing, and microgravity changes around calderas to determine when such forms of unrest may result in eruptions.