This article will address Bezymianny from a broad and deep perspective, with the aim of providing the reader with a complete and detailed vision of this topic. The importance of Bezymianny in today's society is undeniable, so it is essential to delve into its meaning, origin, development and repercussions. Through an exhaustive and rigorous analysis, the aim is to shed light on the different aspects that revolve around Bezymianny, providing relevant and updated information that allows us to understand its relevance today. Likewise, different points of view and opinions of experts on the subject will be explored, in order to enrich the debate and offer a plural and enriching vision about Bezymianny.
Bezymianny | |
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![]() Kamchatka volcanoes: Klyuchevskaya Sopka (up), Bezymianny (down), both in activity, and the Kamen (middle). | |
Highest point | |
Elevation | 3,020 m (9,910 ft)[1] |
Coordinates | 55°58′42″N 160°35′12″E / 55.97833°N 160.58667°E[1] |
Naming | |
Native name | Безымянный (Russian) |
English translation | Nameless |
Geography | |
Parent range | Eastern Range |
Geology | |
Rock age | 4700 years old |
Mountain type | Stratovolcano |
Volcanic field | Kliuchevskoya Volcanic Group |
Last eruption | April 11, 12, and 13 2023 (ongoing) |
Bezymianny (Russian: Безымянный Bezymyannyyi, meaning unnamed) is an active stratovolcano in Kamchatka, Russia. Bezymianny volcano had been considered extinct until 1955. Activity started in 1955, culminating in a dramatic eruption on 30 March 1956.[2][3] This eruption, similar to the 1980 eruption of Mount St. Helens, produced a large horseshoe-shaped crater that was formed by a sector collapse and an associated lateral blast. Subsequent episodic but ongoing lava dome growth, accompanied by intermittent explosive activity and pyroclastic flows, has largely filled the 1956 crater. The most recent eruption of lava flows occurred in February 2013.[4] An explosive eruption on 20 December 2017 released an ash plume rising to a height of 15 kilometres (49,000 ft) above sea level, which drifted for 320 kilometres (200 mi) NE.[5] The volcano erupted similarly on 28 May 2022, again spewing an ash plume over 15 kilometres (49,000 ft) high.[6] On April 7, 2023, Russia reported Bezymianny had erupted explosively again and the Federal Agency for Air Transport, Rosaviatsiya, issued a Notice to Airmen (NOTAM) and raised the aviation Color Code Red. The eruption formed a column of ash that rose to a height of 12 kilometres (39,000 ft) and was drifting to the southeast slowly. The ash plume stretched out across a distance of 2,000 kilometres (1,200 mi).[citation needed]
The modern Bezymianny volcano, much smaller than its massive neighbors Kamen and Kliuchevskoi, was formed about 4700 years ago over a late-Pleistocene lava-dome complex and an ancestral volcano that was built between about 11,000–7000 years ago. There have been three periods of intensified activity in the past 3000 years.