High over the island of Sicily, Mount Etna smolders as Europe’s most active volcano. Underneath its rough slopes, a network of magma chambers and fractures seethes in virtual quiet—until the earth starts to shake. For twenty years, scientists…
High over the island of Sicily, Mount Etna smolders as Europe’s most active volcano. Underneath its rough slopes, a network of magma chambers and fractures seethes in virtual quiet—until the earth starts to shake. For twenty years, scientists…