The eruption of Krakatoa in 1883 sent volcanic dust and gases circling the Earth, creating spectacular sunsets captured by artists.
William Ashcroft via Houghton Library/Harvard University
The Rev. Sereno Edwards Bishop mobilized ship captains to track the extraordinary sunsets appearing around the world after Krakatau erupted in 1883.
Phil Vandenbossche & Nelson Kuna/CSIRO
Sonar scans of the Indian Ocean floor south of Christmas Island have revealed a Tolkeinesque landscape of towering peaks, ashen uplands and ominous volcanic craters.
Deni_Sugandi / shutterstock
Indonesia has a warning system for tsunamis generated by earthquakes – but not volcanoes.
Lava flow moves in the Leilani Estates subdivision near Pahoa on the island of Hawaii, May 6, 2018.
USGS via AP
Fountains of lava from Hawaii’s Kilauea volcano are dramatic, but the most deadly impacts of volcanic eruptions are toxic gases and ash and mud flows.
Mount Etna: boiling over … again.
Shutterstock
The clock is ticking.