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IMAGE 14050
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The early years on this graph are heavily influenced by just a few expedition log books and the writings of Father Veniaminof: the ~120 possible eruptions during the Russian American period come from fewer than 20 documents, and eruptions from 1867-1940 are also probably significantly under-observed and under-reported. Increases from 1880-present day are probably the result of increased population, communications, and travel, rather than an actual increase in volcanic eruptions.

Date: July 21, 2009 12:00 AM
Volcano(es):
Photographer/Creator: Cameron, Cheryl
URL:http://www.avo.alaska.edu/images/image.php?id=14050

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Image courtesy of the AVO/ADGGS.
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Page modified: June 2, 2014 09:50
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