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 - Aniakchak 2016 regional earthquake - Aniachak unrest 2023 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 Postcaldera Subaqueous Domes - Aniakchak Vent Mountain Lava Flows - Aniakchak Caldera Lake Drain - Aniakchak Tuff Cones - Aniakchak Vent Mountain Tephra - Aniakchak Half Cone Lower Pumice - Aniakchak Half Cone Upper Pumice - Aniakchak Cobweb Lava Flow - Aniakchak Vent Mountain lava and tephra - Aniakchak Blocky Cone - Aniakchak New Cone Tephra - Aniakchak Half Cone Pink and Brown Pumice - Aniakchak Post Pink and Brown Pumice TephrafallThis website is supported by the U.S. Geological Survey under Cooperative Agreement Grant G22AC00137
Mention of trade names or commercial products does not constitute their endorsement by the U.S. Geological Survey.
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