The Weekly Volcanic Activity Report: April 19 – 25, 2023
New activity/unrest was reported for 4 volcanoes from April 19 – 25, 2023. During the same period, ongoing activity was reported for 17 volcanoes.
Major breakthrough: 19 000 undersea volcanoes uncovered using satellite data
A team of oceanographers has mapped 19 000 previously unknown undersea volcanoes using radar satellite data, which could improve ocean current modeling and submarine navigation.
Sangay volcano eruption in Ecuador produces large ash emission
A notable eruptive pulse took place at Ecuador’s Sangay volcano on April 21, 2023, producing large volcanic ash emissions and ashfall west of the volcano.
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.
