Explosive eruptions at the summit of Mauna Loa: When did they occur?
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Detailed Description
This light gray block of rock (backpack for scale) is part of the approximately 830-year-old explosion deposit on the northwest rim of Moku‘āweoweo, the summit caldera of Mauna Loa. USGS photo by F.A. Trusdell.
Sources/Usage
Public Domain.