The Weekly Volcanic Activity Report: April 12 – 18, 2023
New activity/unrest was reported for 3 volcanoes from April 12 to 18, 2023. During the same period, ongoing activity was reported for 18 volcanoes.
Ash produced by major eruption at Sheveluch grounds flights in Alaska
Ash clouds produced by the major eruption of Russia’s Sheveluch volcano led to the cancellation of scores of flights in Alaska. The ash clouds drifted across the International Date Line into Alaska airspace, causing safety concerns for airlines over the next couple of days. As a precautionary measure, Alaska Airlines canceled 45 flights to and from Alaska and within the state. Other airlines also had to cancel or delay their flights.
The Weekly Volcanic Activity Report: April 5 – 11, 2023
New activity/unrest was reported for 4 volcanoes from April 5 to 11, 2023. During the same period, ongoing activity was reported for 16 volcanoes.
Massive eruption at Sheveluch volcano produces strongest ashfall in 60 years, Russia
A powerful explosive eruption took place at Russia’s Sheveluch volcano at 13:10 UTC on April 10, 2023. As a result, KVERT raised the Aviation Color Code from Orange to Red. Very heavy ashfall — the strongest in 60 years — was reported in Klyuchi and other nearby cities and villages.
High-level eruption at Bezymianny volcano, Aviation Color Code raised to Red, Russia
A strong explosive eruption occurred at Russia’s Bezymianny volcano at 05:38 UTC on April 7, 2023. As a result, the Aviation Color Code was raised to Red.
The Weekly Volcanic Activity Report: March 29 – April 4, 2023
New activity/unrest was reported for 5 volcanoes from March 29 – April 4, 2023. During the same period, ongoing activity was reported for 22 volcanoes.
Increased seismic activity prompts Yellow alert for Laguna del Maule volcanic complex, Chile
Due to an increase in seismicity detected since March 30, 2023, Chilean authorities raised the Alert Level for Laguna del Maule volcanic complex from Green to Yellow on April 3, 2023.
Eruption at Yasur volcano, Vanuatu
A small eruption took place at Vanuatu’s Yasur volcano at 06:09 UTC on April 4, 2023. The Volcanic Alert Level remains at Level 2 since October 28, 2016.
Nevado del Ruiz – Evacuations in progress after seismicity increases to levels not seen since major eruption in 1985, Colombia
Colombian officials began to evacuate people living on the slopes of the Nevado del Ruiz volcano on Monday, April 3, 2023. The decision follows the highest levels of seismicity since the 1985 eruption (VEI 3) when 25 000 people were killed.
The Weekly Volcanic Activity Report: March 22 – 28, 2023
New activity/unrest was reported for 4 volcanoes from March 222 – 28, 2023. During the same period, ongoing activity was reported for 18.
