Hokkaido 6 – Volcanoes of the Shiretoko Peninsula, Japan Posted by agimarc on 2024-03-01 Posted in: Asia, Volcanoes. Tagged: Andesite, Debris avalanche, faulting, flank collapse, phreatic, pyroclastic, Rausu, Shiretoko, Tenchozan, tephra. Leave a comment Winter view of Rausu volcano from the ocean offshore Shiretoko Peninsula. Image courtesy JPrail.com, Jan 2011 Continue Reading
Fernandina Island, Galapagos, Ecuador Posted by agimarc on 2024-02-15 Posted in: Pacific Islands, Volcanoes. Tagged: Basalt, Caldera, caldera collapse, Debris avalanche, Fernandina, Galapagos, hot spot, plume head, resurfacing. Leave a comment Ocean view of Fernandina Island and volcano. Image courtesy H Banwell, Oct 2016 via Galapagos Conservation Trust Continue Reading
Taapaca Volcanic Complex, Chile Posted by agimarc on 2023-11-15 Posted in: America C & S, Volcanoes. Tagged: altiplano, Andean Central Volcanic Zone, block and ash, Dacite, Debris avalanche, Dome, Putre, Taapaca. Leave a comment Looking N across Putre toward Taapaca. Image courtesy touropia, Sept 2021 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
Mont Pelee, Martinique Posted by agimarc on 2023-02-01 Posted in: America C & S, Volcanoes. Tagged: 1902, Debris avalanche, Martinique, nuee ardente, Pelee, Pyroclastic flow, Sanit Pierre. 7 Comments Summit of Pelee with newly constructed dome from 1929 – 1932 eruption sequence. Image courtesy Martinique Natural Park via Volcano Discovery, Dec 2020 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
Diky Greben and the Kurile Lake Caldera, Kamchatka, Russia Posted by agimarc on 2022-03-15 Posted in: Asia, Volcanoes. Tagged: Andesite, Dacite, Debris avalanche, Diky Gerber, Dome, ignimbrite, Iliinsky, Kamchatka, Kurile Lake. 4 Comments Diky Greben volcanic complex from Kurile Lake. Image courtesy Wiki 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
El Estribo Volcanic Complex, Mexico Posted by agimarc on 2021-08-01 Posted in: America N, Volcanoes. Tagged: cinder cone, Debris avalanche, El Estribo, flank collapse, Michoacan, Patzcuaro, shield. 4 Comments 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 Continue Reading