YELLOWSTONE volcano was rocked by a total of 84 earthquakes last month, 12 of which struck in a single swarm of tremors, Yellowstone officials have revealed.
Friday, 22 February 2019
Yellowstone volcano: 84 EARTHQUAKES strike supervolcano park - 12 hit AT ONCE
YELLOWSTONE volcano was rocked by a total of 84 earthquakes last month, 12 of which struck in a single swarm of tremors, Yellowstone officials have revealed.
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