Volcanic lightning is a striking and multifaceted phenomenon that occurs during explosive eruptions, when vigorous interactions between fragmented ash particles, volcanic gases and environmental ...

Accurate forecasts of the likelihood and magnitude of a volcanic eruption in a specified timeframe are rooted in a scientific understanding of the processes that govern the storage, ascent, and ...

On the flanks of Washington State Mount Rainier, a spike in seismic rumbling has revived an old, unsettling question for the Pacific Northwest: what happens when the region’s most dangerous volcano ...