Sept. 2006 Eruption of Fourpeaked Volcano, Alaska

Fourpeaked eruption Sept. 17, 2006. Mount Douglas is the larger volcano to the right. Note dual sources for eruptive plume. Photo taken by Lanny Simpson, Alaska High Mountain Images via AVO

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Shishaldin Volcano, Alaska – Neighbor to Fisher Caldera

Shishaldin from 11 km altitude. Note the steam from the ice-free crater. Image courtesy AVO, Jun 2015.

Bogoslof Update – August 2018

AVO survey team returning to ship following a day of investigation of Bogoslof August 2018. Newly formed dome is at left, with still active fumaroles. 1926 – 1927 dome in in the center. 1992 dome is to the right. Photo courtesy Gabrielle Tepp, AVO. https://avo.alaska.edu/images/image.php?id=127351