Why is Akutan the Eighth Most Dangerous Volcano in the US?

Akutan Volcano looking west. Village of Akutan on the north side of the bay in the foreground. Image courtesy Vlad Karpayev, AVO, June 2018. https://avo.alaska.edu/images/image.php?id=117501

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Fisher Caldera, Alaska – The largest Caldera System in the State

Historically Active Volcanoes of Alaska. Image courtesy AVO. https://avo.alaska.edu/images/dbimages/display/1258656665_ak6.jpg

Recent Volcanic Activity in Baja California

Schematic of major volcanic fields and structures in Baja California. Image courtesy All.This.Homework blog. https://allthishomework.wordpress.com/general-education/physical-geography/earthquakes-and-volcanoes/

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

Splitting North America – The Walker Lane – Part 2 – The Volcanic Fields

 

Schematic of Long Valley Caldera and surrounding volcanic structures. Relative locations of all three California calderas along the Walker Lane are depicted in previous images. Image courtesy Indiana.edu. http://www.indiana.edu/~sierra/papers/2010/jarosinski.html

Splitting North America – The Walker Lane – Part 1 – The Tectonics

Location of Walker Lane. San Andreas Fault System is depicted in red running from the lower right to the upper left of the image. Image courtesy Carlson et all. https://pubs.geoscienceworld.org/gsa/geosphere/article/9/6/1530/132671/kinematics-of-the-west-central-walker-lane

Popocatepetl – Mexico City’s Active Volcano

Popocatepetl in eruption, July 2013. Photo courtesy Science Times. http://www.isciencetimes.com/articles/5617/20130712/popocatepetl-volcano-erupts-mexico-city-ash.htm

The Ugashik – Peulik Volcanic Center, Alaska

Mount Peulik with the Ukinrek Maars in the foreground. Phot courtesy Wikimedia Commons. https://commons.wikimedia.org/wiki/File:Aerial_view_of_mountain_Peulik_ukinrek_maars.jpg

Recent Volcanic Activity in Nevada, USA – Part 2

Mud Springs volcano, Aurora – Bodie volcanic field. Lava flow is andesitic. Photo courtesy NASA Earth Observatory. https://earthobservatory.nasa.gov/IOTD/view.php?id=50493

Recent Volcanic Activity in Nevada, USA – Part 1

Lunar Crater Volcanic Field from the air.  Lunar Crater itself is a maar.  Photo courtesy Hindred Settling Blog.  https://zsylvester.blogspot.com/2009/12/lunar-crater-volcanic-field-nevada.html