The Weekly Volcanic Activity Report: August 30 – September 5, 2023
New activity/unrest was reported for 3 volcanoes from August 30 to September 5, 2023. During the same period, ongoing activity was reported for 22 volcanoes.

New activity/unrest was reported for 3 volcanoes from August 30 to September 5, 2023. During the same period, ongoing activity was reported for 22 volcanoes.

New activity/unrest was reported for 2 volcanoes from August 23 to 29, 2023. During the same period, ongoing activity was reported for 16 volcanoes.

New activity/unrest was reported for 3 volcanoes from August 26 – 22, 2023. During the same period, ongoing activity was reported for 20 volcanoes.

New activity/unrest was reported for 4 volcanoes from August 9 to 15, 2023. During the same period, ongoing activity was reported for 16 volcanoes.

A new Strombolian eruption started at Etna’s Southeast Crater at 18:40 UTC on August 13, 2023. The activity increased to lava fountaining over the next couple of hours.

A major explosion took place at Stromboli’s Northern crater at 19:06 UTC on August 8, 2023, leading to lava overflows on the outer slope. The eruption came with a sharp spike in tremor, and its aftermath showed a decrease in spattering activity from the North crater area.

New activity/unrest was reported for 9 volcanoes from July 26 to August 1, 2023. During the same period, ongoing activity was reported for 18 volcanoes.

New activity/unrest was reported for 11 volcanoes. During the same period, ongoing activity was reported for 15 volcanoes.

Indonesian Dempo volcano started erupting at 14:15 UTC on July 25, 2023. This is the first eruption at the volcano since the preheatic explosion on June 1, 2022. The volcano has a history of VEI 1 and 2 eruptions since 1817.

Alaska’s Trident volcano has seen a significant increase in seismic activity and ground uplift over the past five months, leading to concerns about a potential volcanic eruption. The Alaska Volcano Observatory (AVO) has confirmed that this unrest is the result of magma intrusion beneath the volcano. The rising magma, which can trigger an eruption, has also caused increased seismic activity in the neighboring volcanoes of the Katmai volcanic cluster, including Katmai, Martin, Mageik, and the Novarupta vent.