The Weekly Volcanic Activity Report: August 3 – 9, 2022
New activity/unrest was reported for 4 volcanoes from August 3 to 9, 2022. During the same period, ongoing activity was reported for 17 volcanoes.
Possibly the first eruption of magma at Ioto volcano in 1 000 years, Japan
The Japan Meteorological Agency (JMA) reports that for the first time in 1 000 years, volcanic eruptions spewing magma are believed to have taken place just off the southern coast of Japan’s Ioto island, also known as Iwojima and Iojima.
The new Meradalir eruption site at night, Iceland
The mbl.is crew visited the new eruption site at Meradalir, Iceland, and caught this amazing night time footage from the eruption site.
New eruption starts near Fagradalsfjall, Reykjanes Peninsula, Iceland
A new eruption has started near Fagradalsfjall volcano in the Krýsuvík-Trölladyngja volcanic system, Reykjanes Peninsula around 13:40 UTC on August 3, 2022.
Increased likelihood of eruption near Fagradalsfjall, Iceland
An intense earthquake swarm that started in the Krýsuvík-Trölladyngja volcanic system on July 30 continues and, according to the latest analysis by the Icelandic Meteorological Office (IMO), the chances of eruption in the area around Fagradalsfjall in the coming days or weeks have increased and are considered significant.
Increased seismicity under Grímsvötn volcano, Aviation Color Code raised to Yellow, Iceland
Increased seismicity was detected under Grímsvötn volcano in SW Iceland on August 2, 2022, forcing the Icelandic Meteorological Office (IMO) to raise the Aviation Color Code for the volcano to Yellow. This is now the third volcano in Iceland with Yellow Aviation Color Code in effect – after Askja and Krysuvik. The last eruption of this volcano took place in 2011.
Series of eruptions at Anak Krakatau volcano, Indonesia
Volcanic activity at Anak Krakatau increased on August 2, 2022, with the first of several eruptions starting at 08:49 UTC. It had maximum amplitude of 33 mm and lasted 32 seconds, ejecting ash up to 1.5 km (4 900 feet) above the peak. The Aviation Color Code remains at Orange.
More than 5 500 earthquakes near Fagradalsfjall volcano in 48 hours, Iceland
More than 5 500 earthquakes have been registered east and west of Fagradalsfjall volcano, Reykjanes Peninsula, Iceland since around 09:00 UTC on July 30, 2022. The Aviation Color Code remains at Yellow.
Powerful earthquake swarm near Fagradalsfjall volcano, Aviation Color Code raised to Yellow, Iceland
A powerful earthquake swarm started at Krísuvík volcano, just northeast of Fagradalsfjall and a short distance north of Fagradalshraun lava field, on July 30, 2022, at a depth of about 5 to 7 km (3 – 4 miles). As a result, the Icelandic Meteorological Office (IMO) raised the Aviation Color Code for the volcano to Yellow. The last eruption at this volcano took place in 2021.
Raung volcano Alert Level raised to 2, Indonesia
The Alert Level for Raung volcano was raised from 1 to 2 on July 29, 2022. The decision was based on the results of seismic monitoring and unstable conditions at the crater. The last eruption of this volcano took place in 2021 (VEI 2).
