15 Explosive Facts About Volcanoes

15 Explosive Facts About Volcanoes

9. THE USGS’s ALL-TIME BEST-SELLING MAP FEATURES VOLCANOES.

"This Dynamic Planet" is now in its third edition. This map features more than 1500 volcanoes, 44,000 earthquakes, and 170 impact craters, as well as the major, minor, and micro tectonic plates whose movement creates these features. About 60 of Earth’s 550 historically active volcanoes blow every year.