The Weekly Volcanic Activity Report: October 5 – 11, 2022
New activity/unrest was reported for 8 volcanoes from October 5 to 11, 2022. During the same period, ongoing activity was reported for 20 volcanoes.
Glacial flood in Grímsvötn, Aviation Color Code raised to Yellow, Iceland
A new glacial flood started at Grímsvötn, a subglacial volcano under Vatnajökull, Iceland, on October 10, 2022, prompting authorities to raise the Aviation Color Code to Yellow and announce the State of Uncertainty.
Vigorous steam and gas plume emissions at White Island volcano, New Zealand
Observation and gas flights have confirmed that the active vent at White Island/Whakaari volcano in New Zealand continues emitting very vigorous steam and gas plume. The Volcanic Alert Level remains at 2.
Pyroclastic flows and lava overflow at Stromboli volcano, Italy
Pyroclastic flows and lava overflow were observed on the Sciara del Fuoco, Stromboli volcano on October 9, 2022.
Increased activity at Bulusan volcano, Philippines
Activity under Bulusan volcano, Philippines increased on October 6, 2022. While the volcano is still on Alert Level 0 (Normal), this is subject to change should current activity persist.
Alert Level for Mayon volcano raised to 2, Philippines
PHIVOLCS raised the Alert Level for Mayon volcano from 1 to 2 on October 7, 2022. The current unrest is driven by shallow magmatic processes that could eventually lead to phreatic eruptions or even precede hazardous magmatic eruption.
The Weekly Volcanic Activity Report: September 28 – October 4, 2022
New activity/unrest was reported for 5 volcanoes from September 28 to October 4, 2022. During the same period, ongoing activity was reported for 20 volcanoes.
Home Reef volcano grows to 6 hectares (15 acres), Tonga
Home Reef volcano re-emerged above sea level on September 9, 2022, prompting authorities in Tonga to issue a Hazard Alert to all marines to sail at least 5 km (3.1 miles) away from the volcano. The volcano is located midway between Metis Shoal and Late Island in the central Tonga islands. It was first reported active in the mid-19th century when an ephemeral island formed.
Earthquake swarm under Laguna del Maule volcanic complex, Chile
A seismic swarm started in under the Laguna del Maule volcanic complex in Chile on October 1, 2022.
Increased ash emissions at Nishinoshima volcano, Japan
Ash emissions at Nishinoshima volcano, Japan increased on October 2 and 3, 2022, after more than 12 months of relative quiescence.
