Avachinsky, Petropavlovsk-Kamchatsky

Avachinsky is an active stratovolcano on the Kamchatka Peninsula in the far east of Russia. It lies within sight of the capital of Kamchatka Krai, Petropavlovsk-Kamchatsky. Together with neighboring Koryaksky volcano, it has been designated a Decade Volcano, worthy of particular study in light of its history of explosive eruptions and proximity to populated areas.
Avachinsky's last eruption occurred in 2008. This eruption was tiny compared to the volcano's major Volcanic Explosivity Index 4 eruption in 1945.
Avachinsky lies on the Pacific Ring of Fire, at a point where the Pacific Plate is sliding underneath the Eurasian Plate at a rate of about 80 mm/year. A wedge of mantle material lying between the subducting Pacific Plate and the overlying Eurasian Plate is the source of dynamic volcanism over the whole Kamchatka Peninsula.
The volcano is one of the most active volcanoes on the Kamchatka Peninsula, and began erupting in the middle to late Pleistocene era. It has a horseshoe-shaped caldera, which formed 30-40,000 years ago in a major landslide which covered an area of 500 km² south of the volcano, underlying the city of Petropavlovsk-Kamchatsky. Reconstruction of a new cone inside the caldera occurred in two major eruption phases, 18,000 and 7,000 years ago.
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Avachinsky Reviews
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TripAdvisor Traveler Rating 4.5
187 reviews
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4.9
TripAdvisor
  • We spent a day on a boat visiting the bay and its surroundings. There are beautiful rocks called the three brothers that one can see in the bay. Also there are many birds and further on, some sea...  more »
  • Docking in the harbour provided an excellent vista across the bay to an imposing volcano. A guided tour from our cruise ship took us to a lookout that provided a panoramic view of this expanse of...  more »
Google
  • Scenic and intense rise to volcano -way up 6-8 hours, down 2-3. Try to choose good weather -without rain and less clouds to see more and not stay wet.
  • Very nice place and volcano.
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