On March 3, 2015, Chile’s Villarrica volcano launched a mile-high fountain of lava into the inky night sky. In the days leading up to the explosion, the lava lake rose and roiled within the volcano’s ...
After the eruption of Nevado del Ruiz killed more than 23,000 people in Colombia in 1985, the U.S. Office of Foreign Disaster Assistance asked the U.S. Geological Survey to design a program to help ...
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