Volcanoes of the Andean SSVZ 2, Chile Posted by agimarc on 2024-04-15 Posted in: America C & S, Volcanoes. Tagged: Andesite, Basalt, Chaiten, debris avlanche, Dome, Lahar, Liquine, Los Lagos, remote, Rhyolite, SSVZ, tephrachronology. 1 Comment Volcan Yate from Carretera Austral. Image courtesy H Brito via Andesgear Blog Continue Reading
Platanar Volcanic Complex, Costa Rica Posted by agimarc on 2023-10-15 Posted in: America C & S, Volcanoes. Tagged: Aquas Zarcas, Caldera, Ciudad Quesada, Cordillera Central, Costa Rica, Lahar, Platanar, scoria cone. 2 Comments Platanar volcano from the west. Image courtesy Costa Rica.com, Jun 2015 Continue Reading
Mount Shasta, California, USA Posted by agimarc on 2023-09-15 Posted in: America N, Volcanoes. Tagged: Andesite, Dacite, debris flow, Dome, flank collapse, glacier, Hotlum, Lahar, Shasta, Shastina. 5 Comments Mount Shasta from a local road looking generally north. Largest peak to the left is the newest Hotlum cone. Smaller cone to the right is the Shastina cone. Image courtesy Atlas Obscura, L Kiniry, Sept 2020 Continue Reading
Pico de Orizaba, Mexico, Part 2 of 2 Posted by agimarc on 2023-06-15 Posted in: America N. Tagged: Andesite, Citlaltpetl, Dacite, Debris avalanche, flank collapse, glacier, Lahar, lava, pyroclastics, Trans Mexican Volcanic Belt. Leave a comment Panorama looking across Sierra Negra to neighboring Pico de Orizaba. TX-01 on Sierra Negra is a telescope site. Road to the site winds up the flank of the volcano lower right. Sites labeled OR-XX are various archeological sites on the volcano where obsidian tools and pottery from Mesoamerican miners(?). Most of the glacial coverage is to the on the E, N and W quadrants, contributing to the ice-free oddity of this summer photo. Image courtesy Montero.org.mx Continue Reading
Pico de Orizaba, Mexico, Part 1 of 2 Posted by agimarc on 2023-06-01 Posted in: America N, Volcanoes. Tagged: Andesite, Citlaltepetl, Dacite, Debris avalanche, flank collapse, glacier, Lahar, pyroclastics, Trans Mexican Volcanic Belt. Leave a comment NW Face of Pico de Orizaba from neighboring Hidalgo, Pico de Orizaba National Park, Mexico. High point to the left of the summit is the remnant of Espolon de Oro, the second volcanic edifice Orizaba is constructed on. Jamapa glacier is facing the camera. Image courtesy Mexico en Fotos, Feb 2014 via Wiki Continue Reading
Gunung Semeru, East Java, Indonesia Posted by agimarc on 2022-12-15 Posted in: Asia, Volcanoes. Tagged: Andesite, Bromo, debris flow, Lahar, Pyroclastic flow, Semeru, Tengger. 8 Comments Morning view across Bromo – Tengger and Sandsea caldera toward Semeru in eruption. Image courtesy Tan Yilmaz, flickr, Aug 2008 Continue Reading
Kulshan Caldera and Mount Baker Volcanic Field, Washington State, USA Posted by agimarc on 2022-12-01 Posted in: America N, Volcanoes. Tagged: Andesite, Debris avalanche, debris flow, Fumarole, Hannegan Caldera, Kulshan Caldera, Lahar, Mount Baker, rhyodacite, Tapps Lake, Washington. 2 Comments Glaciated Mount Baker from neighboring Mount Shuksan. Area to the right is the Kulshan Caldera. Jagged peak is glacially eroded basalts of Mount Shukshan. Image courtesy Lee Siebert, 1971, Smithsonian GVP Continue Reading
Mount Taranaki, New Zealand Posted by agimarc on 2021-11-15 Posted in: Australia, Volcanoes. Tagged: Debris avalanche, Egmont, Fanthams Peak, Lahar, Maori, New Zeawland, North Island, Taranaki. 3 Comments Taranaki with snowcap. Satellite vent Fanthams Peak to the left of the photo. Image courtesy skimountaineer.com Continue Reading
Lunar Eclipses and Asama Volcano, Japan Posted by agimarc on 2021-09-01 Posted in: Asia, Volcanoes. Tagged: 1108, 1783, Asama, flank collapse, Honshu, Lahar, lunar eclipse, Pyroclastic flow. Leave a comment A very dark lunar eclipse. Image courtesy SyFyWire Continue Reading
Debris Avalanche at Mount Meru, Tanzania Posted by agimarc on 2021-05-01 Posted in: Africa, Volcanoes. Tagged: Arusha, Debris avalanche, East African Rift, flank collapse, Kilimanjaro, Lahar, Mount Meru, North Tanzanian Divergence Zone, Tanzania. 1 Comment Peak of Mount Meru on the northern flank of the volcano looking south. Flank collapse amphitheater clearly visible on the left of the volcano. Image courtesy Wiki Continue Reading