Uploaded 22-Oct-12
Taken 22-Oct-12
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Map of Alaska

Map of Alaska

On June 6-9th, 1912, the most spectacular Alaskan eruption in recorded history and the largest volcanic eruption in the world of the twentieth century resulted in the formation of a large summit caldera at Katmai volcano. The eruption actually took place at a vent about 6 mi (10 km) to the west of Mount Katmai (at the Novarupta Volcano). During over 60 hours, the volcano erupted an estimated 28 km³ of ash flows and tephra representing 13 km³ of magma volume.