Protector Shoal, South Sandwich Islands

Location: 55.9S, 28.1W
Elevation: -89 feet (-27 m)

Protector Shoal is a submarine volcano. The volcano erupted in March of 1962. The euption produced great volumes of rhyolitic pumice. The pumice raft covered an area of at least 2,000 square miles! Pumice from the eruption eventually drifted west to New Zealand. Unlike most of the South Sandwich Islands, which are made of basalt, Protector Shoal is the only volcano in the arc that has erupted rhyolite.

Steve Mattox

Sources of Information:
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