Low-level seismicity continues at Korovin Volcano with no other signs of volcanic activity detected in infrasound sensors or partly cloudy satellite views, the Alaska Volcano Observatory (AVO) reported at 19:42 UTC on November 1, 2020. The last eruption at this volcano took place in 2007. Its strongest known eruption took place in 1998 (VEI 3).
AVO raised the Aviation Color Code and Alert Level at Korovin Volcano to YELLOW/ADVISORY at 17:51 UTC on October 28 based on recent satellite detections of significant sulfur dioxide emissions and an increase in seismicity to a level above background.
Discrete earthquakes have been detected over the past two weeks and sulfur dioxide degassing has been detected four times in satellite data on October 15, 20 and 26.
Korovin volcano, Alaska on October 25, 2020. Credit: Copernicus EU/Sentinel-2
Korovin, the most frequently active volcano of the large volcanic complex at the NE tip of Atka Island, contains a 1 533 m (5 029 feet) high double summit with two craters located along a NW-SE line.
The NW summit has a small crater, but the 1 km (0.6 miles) wide crater of the SE cone has an unusual, open cylindrical vent of widely variable depth that sometimes contains a crater lake or a high magma column.
Featured image: Korovin volcano, Alaska on October 25, 2020. Credit: Copernicus EU/Sentinel-2
January 20, 2022
A wintry mix is expected today from the Ohio Valley into the Mid-Atlantic and southern New England along a cold front. One or more waves of low pressure tracking east along this front will likely bring areas of heavy snow and significant ice from south Texas into...
January 17, 2022
Eruptive column produced by the massive eruption of the Hunga Tonga-Hunga Ha'apai volcano in Tonga at 04:10 UTC on January 15, 2022, likely reached a height of about 30 km (98 500 feet) above sea level. The data is coming from Ozone Mapping and Profiler Suite...
December 29, 2021
Severe cold wave sweeping through northern China dropped the temperature in the city of Hulunbuir, Inner Mongolia autonomous region to -46.9 °C (-52.4 °F) on December 23, 2021. The cold snap continued over the Christmas weekend and into the new week. While...
December 15, 2021
Two annual records, for rainfall and snowfall, were already broken this month in Greece, the National Observatory of Athens announced. The annual rainfall reading at Theodoriana meteorological station, in the northwestern regional unit of Arta, reached 3 425 mm...
December 06, 2021
With the temperature dropping to -20.9 C (-5.8 F) on Sunday, December 5, 2021, the Russian city of St. Petersburg has broken its daily record set 128 years ago - in 1893. "Today, St. Petersburg set a new daily cold weather record. Temperatures in the Northern...
Producing content you read on this website takes a lot of time, effort, and hard work. If you value what we do here, please consider becoming a supporter.