1940 was a momentous year for Mauna Loa - and for Thomas A. Jaggar
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Detailed Description
Lava fountains erupt from a fissure in the southwestern part of Moku`aeoweo, Mauna Loa's summit caldera, on April 11, 1940 (view looking to the south-southeast). Patches of white snow cling to the caldera walls as fluid pahoehoe lava flows spread across
Sources/Usage
Public Domain.