Eruption
Questionable eruption
Non-eruptive activity - Aniakchak 1931/5 - Aniakchak 1942 - Aniakchak 1951/6 - Aniakchak 2004/12 - Aniakchak 2008/3 - Aniakchak 2009/2 - Aniakchak 2010/1 - Aniakchak 2010/8 Eruption Questionable eruption Non-eruptive activity - Aniakchak Tephra D/Pleistocene - Aniakchak Precaldera Dacite - Aniakchak Precaldera Rhyodacite - Aniakchak Precaldera Pyroclastic - Aniakchak CFE I - Aniakchak Black Nose Pumice - Aniakchak Pre-Black Nose Pumice - Aniakchak ECR-162 Tephra - Aniakchak CFE II - Aniakchak Vent Mountain Lava Flows - Aniakchak Postcaldera Subaqueous Domes - Aniakchak Caldera Lake Drain - Aniakchak Tuff Cones - Aniakchak Half Cone Lower Pumice - Aniakchak Vent Mountain Tephra - Aniakchak Half Cone Upper Pumice - Aniakchak Cobweb Lava Flow - Aniakchak Blocky Cone - Aniakchak New Cone Tephra - Aniakchak Vent Mountain lava and tephra - Aniakchak Half Cone Pink and Brown Pumice - Aniakchak Post Pink and Brown Pumice Tephrafall
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