Get our newsletter!
Check out our volcano tours on VolcanoAdventures.com!
Volcanoes & Earthquakes - new app for Android
Volcanoes & Earthquakes - app for iPhone & iPad

Volcano Calendar 2020
Volcano Calendar 2020: We're proud to present our 2020 volcano calendar: 13 different and attractive images of volcanoes, volcanic landscapes and phenomena taken during volcano tours over the past two years.
Our New Book
Volcano Discoveries: "One of the most eye-catching guides to the world’s volcanoes ever published.
Volcano Travel
VolcanoAdventures: Our professional team of volcanologists and photographers offers unique travel opportunities: volcano expeditions, photo tours, and relaxed walking & study tours.
Volcano Adventure Guide
The Volcano Adventure Guide: Excellent information and background for anyone wishing to visit active volcanoes safely and enjoyably. The book presents guidelines to visiting 42 different volcanoes around the world.
Guaranteed tours:
9-17 May 2020: From Stromboli to Etna - Eolian Islands + Etna volcano (Italy)
11-29 Aug 2020: Kamchatka - Land of Colors - Kamchatka (Russia)
11-29 Aug 2020: Kamchatka - Land of Colors - Kamchatka (Russia)
: spaces available / : guaranteed / : few spaces left / : booked out
Random pictures

Bolshoi Semiachik volcano

Stratovolcanoes 1720 m / 5,643 ft
Kamchatka, Russia, 54.32°N / 160.02°E
Current status: normal or dormant (1 out of 5) | Reports
Bolshoi Semiachik volcano books
Typical eruption style: unspecified
Bolshoi Semiachik volcano eruptions: 4450 BC (?)  No recent earthquakes
TimeMag. / DepthDistanceLocation

Background:

The Bolshoi Semiachik volcanic complex was constructed within a 10-km-wide caldera whose rim is exposed only on the west. The caldera occupies a large 20 x 30 km late-Pleistocene volcano-tectonic depression near the Pacific Coast of eastern Kamchatka. Post-caldera volcanism includes resurgent doming and the construction of numerous stratovolcanoes and lava domes, several of which have been active during the Holocene. Zubchatka (Bolshoi Semiachik), Zapadny Barany, Vostochny Barany, Zentralny Semiachik, Popkov, Plosky, and Burlyashchy volcanoes are the largest of the volcanic complex. The youngest volcanism and intense modern hydrothermal activity, which is among the most vigorous of Kamchatka, is located outside the caldera to the SE.
---
Smithsonian / GVP volcano information


Latest satellite images


See also: Sentinel hub | Landsat 8
 

More on VolcanoDiscovery:

Bardarbunga update
Current activity of Bardarbunga volcano, Iceland: An intense seismic crisis started at Bárdarbunga volcano on 16 August 2014 and is continuing at the time of writing (23 Aug). It may or may not lead to a volcanic eruption, possibly under the Vatnajökull ice cap.
Follow updates as news come in!
Subduction zones
Convergent plate boundaries and subduction zones: As an oceanic plates collides with another plate, it is subducted and generates volcanism on the overlying plate.
Earthquakes
Earthquake monitor: Lists and maps of earthquakes in the world in near real time. Country lists, earthquake archive, and I-felt-it reports.
Kamchatka volcanoes
Kamchatka volcano tour Sep 2017 - tour diary: Impressions from our tour to Kamchatka's volcanoes: remote Karymsky, Gorely, Mutnovsky, Uzon and Valley of Geysers, Klyuchevskoy volcano and more.
Copyrights: VolcanoDiscovery and other sources as noted.
Use of material: Most texts and images, in particular photographs, on this website are protected by copyright. Further reproduction and use of without authorization is usually not consented. If you are not sure or need licensing rights for photographs, for example for publications and commercial use, please contact us.