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Ballistic block from Kīlauea summit

Detailed Description

A man measuring 6 feet 4 inches tall lies on a ballistic block that was thrown 1 km (half a mile) from the floor of Kīlauea caldera onto the northwest flank of the volcano probably during the 1790 eruption. USGS photo taken by D. Swanson. 

Sources/Usage

Public Domain.

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