The Russian equivalent of Mount Saint Helens unexpectedly produced a powerful explosive eruption, sending a plume of ash more than 40,000 feet into the atmosphere. This occurred at the Bezymianny volcano on April 7th of 2023, and caused a layer of ash to fall over an area of several thousand square kilometers. As a result, Bezymianny's alert level was temporarily raised to red before being lowered back to orange. This created a powerful explosion which generated pyroclastic flows in addition to a 15.2 kilometer or 50,000 foot high ash plume. Luckily, there was no significant damage as there were no structures near the volcano at the time of the eruption. Although large, the eruption on May 28th was not completely unexpected as this volcano is very similar in nature to Mount Saint Helens.
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Sources/Citations:
[1] KVERT (Russia)
[2] Alaska Volcano Observatory
[3] University of Alaska Fairbanks, Geophysical Institute
[4] U.S. Geological Survey
[5] NASA Worldview, EOSDIS Worldview, (Satellite imagery: Terra / MODIS), (Thermal signatures: Terra / MODIS, NOAA-20 / VIIRS, Aqua / MODIS), at [ Ссылка ]
[6] VEIs, dates/years, eruption plume heights, and bulk tephra volume estimates for volcanic eruptions shown in this video which were assigned a VEI 4 or larger without an asterisk after their name are sourced from the LaMEVE database (British Geological Survey © UKRI), [ Ссылка ], Used with Permission. This source was used to attribute the VEI 5 eruption of Bezymianny in 1956.
0:00 Bezymianny Erupts
1:17 Merapi Type Vulcanian Eruption
1:58 Location of Bezymianny
2:42 1956 Eruption
3:56 Conclusion
