Regional infrasound sensors detected a small explosion at Semisopochnoi volcano, Alaska on March 19, 2021, indicating an increase in eruptive activity. As a result, the Alaska Volcano Observatory (AVO) has raised the Aviation Color Code to ORANGE and the Volcano…
A moderate explosive-effusive flank eruption and gas-steam activity continue at Klyuchevskoy volcano, Kamchatka, Russia. KVERT warns the danger of ash explosions up to 4 – 5 km (13 120 – 16 400 feet) a.s.l. from the flank crater and the lava flow front (phreatic…
A small swarm of shallow seismicity, that began at 11:00 UTC on March 18, 2021, is occurring beneath the upper Ka‘ōiki seismic zone, under Mauna Loa’s southeast flank and northwest of Kīlauea's summit, Hawaii. Mauna Loa Volcano is not erupting;…
The morning of March 19, 2021, brought another paroxysmal eruptive episode at Etna volcano, Italy — the 15th since February 16. The Aviation Color Code was raised to red at 08:16 UTC. The tremor started increasing at around 06:30 UTC and soon reached a high-level…
New activity/unrest was reported for 9 volcanoes from March 10 to 16, 2021. During the same period, ongoing activity was reported for 14 volcanoes. New activity/unrest: Bagana, Bougainville (Papua New Guinea) | Etna, Sicily (Italy) | Krysuvik-Trolladyngja, Iceland |…
Strombolian activity at Etna volcano, Italy intensified again at 00:55 UTC on March 17, 2021, and evolved over the next couple of hours into the 14th paroxysmal eruptive episode since February 16. The Aviation Color Code was raised to Red at 02:26 UTC and lowered…
Increased eruptive activity continues at Guatemala's Pacaya volcano with dense, dark ash columns, indicating that magma is pushing its way toward the surface. The volcano has been erupting since early February, posing risk to the surrounding communities. In a…
In 24 hours to 00:00 UTC on March 15, the Taal Volcano Network recorded 252 volcanic earthquakes, including 17 episodes of volcanic tremor with durations of 1 to 4 minutes and 5 hybrid events, PHIVOLCS reports. During the same period, activity at the Main Crater…
Etna's 13th eruptive paroxysmal episode since February 16 started late on March 14, 2021. The Aviation Color Code was raised to Red at 22:36 UTC and lowered back to Orange at 07:09 UTC, March 15. Strombolian activity increased at 20:10 UTC on March 14 and…
New activity/unrest was reported for 8 volcanoes from March 3 to 9, 2021. During the same period, ongoing activity was reported for 12 volcanos. New activity/unrest: Etna, Sicily (Italy) | Klyuchevskoy, Central Kamchatka (Russia) | Krysuvik, Iceland | Pacaya,…
