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.
Geophysicists use sound waves to build a picture of the magma and rock beneath this active volcano, most of which is underwater. It’s like CT scanning the Earth.
Ever heard of Campi Flegrei? It is a supervolcano in southern Italy. Literally translating as “fields of fire,” only the Yellowstone caldera in the United States has more potential to devastate. The Naples…