National Geographic : 1956 Jun
755 Kodachrome by Gilbert Grosvenor A Jade Lake Laps Katmai Crater, Created by One of Earth's Most Violent Explosions Catastrophic eruptions blew off more than 1,500 feet of Katmai's top in 1912. Two cubic miles of rock disintegrated into dust and ash, which clouded the air and dimmed the sun as far away as North Africa. Nearly a foot of ash fell on Kodiak, 100 miles away. The crater lake never freezes, evidence that fire still smolders below.