Changes in the configuration of Bogoslof Island resulting from the ongoing 2016-17 eruption. The January 30-31, 2017 eruptive activity generated roughly 0.4 square kilometers of new land and as of January 31, 2017, the island area was 1.02 square kilometers, roughly three times the size of the pre-eruption island. Nearly all of this new material consists of unconsolidated pyroclastic fall and flow (surge) deposits that are highly susceptible to wave erosion and thus additional changes in the configuration of the island are likely.
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