Figure showing located earthquakes from the 1912 Novarupta eruption. Earthquakes larger than magnitude 6 are depicted with a red star. Figure from Hildreth, Wes, and Fierstein, Judy, 2000, Katmai volcanic cluster and the great eruption of 1912: Geological Society of America Bulletin, v. 112, n. 10, p. 1594-1620, 6 sheets, scale unknown.
Image courtesy of USGS.
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