The Atka, Korovin, Kliuchef Volcanic Complex, Aleutians, Alaska

Greater Atka Volcano complex with the caldera, Korovin and Kliuchef labeled. Image courtesy Lu and Dzurisin, 2014, via Smithsonian GVP

El Estribo Volcanic Complex, Mexico

El Estribo (red marker) volcano.  Cinder cone topping the shield is just to the south of the marker.  Fault scarp / flank collapse scarp visible to the left and right of the marker.  Neighboring Patzcuaro is the settled area to the right.  Southern end of Patzcuaro Lake is visible at top.  Screen capture from Google maps

Indian Heaven Volcanic Field, Washington State, USA

Lemei Rock in Indian Heaven volcanic field.  Image courtesy Outdoor Project, Fall Color in Indian Heaven Wilderness, WA, Lisa Holmes, 2014

Dotsero Volcanic Complex, Colorado, USA

Remaining maar of Dotsero volcanic complex.  Image courtesy Our Community Nov, 2019

Dotsero is the most recent of four quaternary volcanic centers in NW Colorado.  The locations and relative ages are: Dotsero (4,150 years ago), Willow Peak (undated), McCoy (0.64 Ma) and Triangle Peak (1.98 – 1.87 Ma).  Triangle Peak was the only one of these not monogenetic as it produced at least 11 lava flows before activity stopped.  Willow Peak is described as a young cinder cone with a narrow lava flow extending 6 – 7 km E.

Nevado de Toluca, Mexico

Nevado de Toluca from surrounding valley.  Image courtesy Ricardo Guaderrama Caraveo, via Medium.com, 2018

Recent Activity at Little Sitkin, Alaska

NASA Landsat image of Little Sitkin island. Image courtesy SJ Smith via AVO, 2001

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

Mono-Inyo Craters – the Most Recent Activity at Long Valley, CA

Annotated satellite image of Mono-Inyo Craters. Mammoth Mountain dome domplex is at the bottom of the image. Mono Lake is at the top. Long Valley is to the east (right) of Mammoth Mountain. Image courtesy Wikipedia Mono-Inyo Craters

Makushin Volcano, Alaska. The 9th Most Dangerous Volcano in the US?

Active fumaroles on Makushin Volcano from Dutch Harbor July 2018. Photo courtesy Abi Woodbridge, via AVO

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.