Another round of snow — including reports of thundersnow — blanketed the summits of Mauna Kea and Mauna Loa on the Big Island of Hawaii on Sunday and Monday. Mauna Kea park rangers reported ...

Not all volcanic eruptions are created equally. Thin and runny magma results in lazy flows, like the kind you’ll find in Hawaii; meanwhile, thick and sticky magma results in catastrophic explosions ...

Volcanologists have recorded thunder from a volcanic eruption for the first time. Observers dating back to the ancient Romans have seen lightning in volcanic-ash clouds, but thunder has been much ...

An erupting volcano produces massive, rumbling sounds but scientists proved that volcanic thunder, a previously undocumented phenomenon, is real. The thunderclaps that follow a volcanic lightning can ...