AVO Logo
Site Map | FAQ |
Alaska Volcano Observatory
About Alaska's Volcanoes | Hazards from Alaska's Volcanoes | Map & Alphabetical List | Interactive Map | Eruption Search | Volcano Search 
You are here: Home > Volcano Information

Aniakchak reported activity





Event Name : Aniakchak Precaldera Dacite

Start: 14000 Years BP Tephrochronology
Stop: 3430 Years BP Tephrochronology

Lava flow: BibCard BibCard
Eruption Type:Effusive
Eruption Product: dacite BibCard

Description: From Bacon and others (2014): "Two lava flows and several pyroclastic deposits are younger than the last major glacial advance but preceded the Aniakchak II caldera-forming eruption."

"A blocky flow of dacite lava is present on the northeast flank of Aniakchak volcano (fig. 4 [in original text], included in unit Qbn). Compositional affinity of the lava with deposits on the caldera rim indicates that the flow likely postdates Aniakchak I. Dreher (2002, p. 17) reported Aniakchak II lithic breccia resting on the lava."

Neal and others (2001) also report a dacite lava flow (on northwest flank?).

Contact AVO Privacy Accessibility Information Quality FOIA
URL: avo.alaska.edu/volcanoes/activity.php
Page modified: March 30, 2017 14:36
Contact Information: AVO Web Team

twitter @alaska_avo
facebook alaska.avo
email Receive volcano updates by email: USGS VNS

This 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.