After an eruption, DIY cushions of gas help searing torrents of gas, ash, and rock spread miles from their source within a matter of minutes. Pyroclastic flows contain a deadly combination of hot rock ...

One of the leading killers during explosive volcanic eruptions is a family of superheated gas, ash, and debris known as pyroclastic density currents. These tumbling, turbulent paroxysms rush downslope ...

For a third straight day, residents of Kagoshima City are sweeping gray-white volcanic ash from rooftops, gutters, and car windshields after Sakurajima, the stratovolcano that looms just four ...