The Weekly Volcanic Activity Report: August 16 – 22, 2023
New activity/unrest was reported for 3 volcanoes from August 26 – 22, 2023. During the same period, ongoing activity was reported for 20 volcanoes.
The Weekly Volcanic Activity Report: August 9 – 15, 2023
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.
Strong explosive activity, lava fountains at Mount Etna, Italy
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.
Lava overflows after major explosion at Stromboli volcano, Italy
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.
The Weekly Volcanic Activity Report: July 26 – August 1, 2023
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.
The Weekly Volcanic Activity Report: July 19 – 25, 2023
New activity/unrest was reported for 11 volcanoes. During the same period, ongoing activity was reported for 15 volcanoes.
Eruptions at Dempo volcano, Sumatra, Indonesia
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.
Magma intrusion at Trident volcano, site of the world’s largest eruption of 20th century, Alaska
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.
Major eruption at Shishaldin volcano, ash to 12 km (40 000 feet) a.s.l., Alaska
A major eruption is ongoing at Shishaldin volcano in Alaska, with satellite imagery suggesting the top of the ash cloud was approaching 12 km (40 000 feet) above sea level just before 08:00 UTC on July 23, 2023. As a result, the Aviation Color Code was again raised to Red.
Vulcanian explosions at Anak Krakatau, Indonesia
After weeks of phreatic activity, Vulcanian type of explosions started at the Anak Krakatau volcano in Indonesia on July 20, 2023.
