Image: John Grew
Mauna Loa’s rapid lava flows have engulfed whole villages during past eruptions, and while many who live on the Island of Hawaii may give the volcano’s destructive potential little thought in light of its recent quiescence, Frank Trusdell of the Hawaiian Volcano Observatory warns: “Mauna Loa will erupt again, and there’s a good chance that it will be during your lifetime.”
Image: Magic Pea
7. Goma – Mount Nyiragongo
Inside Virunga National Park, 20 kilometers (12.4 mi) from the city of Goma (in the Democratic Republic of the Congo) stands Mount Nyiragongo, a deadly volcano that has erupted dozens of times since 1882. An eruption in 1977 caused the volcano’s lava lake to drain rapidly, sending torrents of highly fluid molten rock hurtling down the slopes of the volcano at speeds of up to 100 km per hour (60 mph), devastating villages and killing least 70 people (though other reports suggest a much higher death toll numbering several thousand).