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Volcanic features and deposits

39 articles

Sheveluch

Sheveluch (Shiveluch, Шивелуч) is a 3,283 m andesitic stratovolcano, the northernmost active volcano on Russia's Kamchatka Peninsula, with at least 60 large Holocene eruptions, a 1964 edifice-collapse eruption, and an ongoing lava-dome eruption since 1980/1999 including the April 2023 paroxysm.

Sinabung

Sinabung (Gunung Sinabung) is a 2,460 m stratovolcano in Karo Regency, North Sumatra, Indonesia, dormant about 400 years before its 2010 eruption, then erupting 2013–2021 with deadly dome-collapse pyroclastic flows, and re-erupting 31 August 2026.

Singkut

Singkut is a Quaternary volcanic caldera in North Sumatra, Indonesia (GVP 261070, Sunda Arc), also known through its cone Sibayak. It formed ~44 ka in a VEI 6 eruption (~26 km³ DRE), last erupted in 1881, hosts Berastagi and the Sibayak geothermal field, and rises to 2,181 m.

Ticsani

Ticsani is a dacitic lava dome complex in Moquegua region, southern Peru, 60 km NE of Moquegua city, 30 km SE of Huaynaputina. Last eruption about 1800 CE; fumarolic activity, recurring seismic swarms, high-risk classification, green alert, monitored by IGP and INGEMMET.

Tilocalar

Tilocalar (Tilocálar), a monogenetic volcanic field of four small andesitic centers in northern Chile's Salar de Atacama region, formed about 460–730 ka, with Tilocálar Norte and Sur erupting within 9 ± 2 kyr.

Vaiyots-Sar

Vaiyots-Sar (Վայոցսար), also Dalik Tapa or Dar-Alages, is a pyroclastic cinder cone volcano in Vayots Dzor, Armenia, 2,575 m high, with Holocene lava flows, a 2000 BCE GVP eruption date, and a disputed 735 AD eruption legend.

Volcanic crater

A volcanic crater is an enclosed depression at or around a volcanic vent, formed by explosive eruption or ground collapse; a collapse more than 1 kilometer across is a caldera.

Vysoky

Vysoky (Vysokii, Visoky), volcano 300221, a 2,129 m Holocene stratovolcano in Kamchatka's Eastern Volcanic Arc, 4 km NE of Komarov; last confirmed eruption about 550 BCE (VEI 0), not the Slovak mountain Vysoká.

Yellowstone Caldera

Yellowstone Caldera: the 85 x 45 km volcanic depression formed by the Lava Creek Tuff eruption 640,000 years ago, youngest of three Yellowstone hotspot calderas, powering over 10,000 hydrothermal features and monitored by the Yellowstone Volcano Observatory.