The M7.0 Anchorage Earthquake of 2018

Minnesota offramp. There is a marshy area off the photo to the right (west). Soil liquefied underneath the road fill and it moved. Vehicle was recovered intact. Driver was not harmed. Image courtesy ADN. https://www.adn.com/tag/11-30-18-alaska-earthquake/

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Dome Inflation at Kikai Caldera, Japan

Satsuma Iojima Island on the rim of the Kikai Caldera. Iojima rhyolite dome is at the upper right. Inamura scoria cone is midway between the peninsula at the lower right and Iojima. Photo courtesy Getty via The Sun. https://www.thesun.co.uk/tech/5572129/underwater-supervolcano-eruption-kill-100-million-people-japan-lava-dome-science/

Australia 1 – Introduction into Australian Volcanic Activity

Mount Elephant, Newer volcanic field, Victoria. Abandoned scoria quarry in the foreground. Photo courtesy Australian Geographic. https://www.australiangeographic.com.au/topics/science-environment/2017/05/volcanic-victoria/

The July 2012 Eruption of Havre Seamount, Kermadec Islands, NZ

Initial photo of Havre pumice raft taken by Maggie de Grauw. There was a second patch visible that she was unable to get a photo of due to angles of sight and sunlight. Photo courtesy Stuff. http://www.stuff.co.nz/environment/8402949/Chance-holiday-snap-alerts-scientists-to-discovery

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

Antarctica 5 – Volcanoes of the Antarctic Peninsula

Feature map of Antarctic Peninsula. Image courtesy AntarcticGlaciers.org. http://www.antarcticglaciers.org/glacial-geology/ice-stream-initiation-northern-antarctic-peninsula/

Just when I think I will be finished with Antarctic volcanoes for a while, along comes a publication that posits one to several mantle plumes stretching from the Antarctic Peninsula to the Ross Sea.  As such, it is probably time to discuss volcanoes in the Antarctic Peninsula.

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