Wednesday marks the 35th anniversary of the deadly eruption of Mount Unzen's Fugen Peak in Nagasaki Prefecture, southwestern ...

Residents of the city of Shimabara in Nagasaki Prefecture, southwestern Japan, on Wednesday mourned the 43 victims of a pyroclastic flow from the Fugen peak of Mount Unzen in the prefecture that ...

When volcanoes erupt, pinpointing the regions at high risk for lethal hazards and deciding whether or not to evacuate a resistant population comprise the most difficult problems faced by hazards ...

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 ...