A strong swarm of shallow earthquakes started under Cumbre Vieja volcano1, La Palma island, the Canary Islands on September 11, 2021, leading authorities to raise the Alert Level from Green to Yellow on September 13. There have been 10 swarms in this area of the…
A strong earthquake swarm started under Cumbre Vieja volcano, La Palma, Canary Islands at 03:18 UTC on September 11, 2021. From the beginning of the seismic series until 08:00 UTC on September 13, a total of 1 570 earthquakes have been detected, of which 354 were…
In 24 hours to 16:00 UTC on September 11, monitoring systems of the Popocatepetl volcano registered 128 exhalations accompanied by water vapor, volcanic gases and low ash content.1 Additionally, 753 minutes of low-amplitude tremor were recorded as well as an…
The National commissioner in agreement with the Police Department of the North-East Iceland declared the uncertainty level because of the ongoing uplift at Askja volcano. In addition, the Aviation Color Code for the volcano was raised from Green to Yellow. This is…
Eruptive activity continues at the north crater of Mount Cerberus on Semisopochnoi Island, the Alaska Volcano Observatory (AVO) reported at 20:01 UTC on September 8, 2021. Seismicity at the volcano remains elevated and variable, with periods of continuous tremor,…
New activity/unrest was reported for 5 volcanoes from September 1 to 7, 2021. During the same period, ongoing activity was reported for 14 volcanoes. New activity/unrest: Askja, Iceland | Kilauea, Hawaiian Islands (USA) | Pagan, Mariana Islands (USA) | Pavlof,…
Eruption at a newly-discovered underwater volcano, located about 50 – 60 km (31 – 37 miles) east of Mayotte, Indian Ocean continues with increased seismicity and associated deformations. During the month of August, REVOSIMA detected 361 volcano-tectonic earthquakes…
While activity at the Russian Sheveluch volcano sharply dropped at the beginning of September 2021, its lava dome continues growing, accompanied by strong fumarolic activity, incandescence of the lava dome, and hot avalanches. Satellite data still shows a bright…
Another glacial outburst flood (jökulhlaup) is in progress at the Vatnajökull ice cap since September 5, 2021. Yesterday's flood started at the Eastern Skaftárketill cauldron and follows another flood from the Western Skaftárketill which…
Vigorous ash emissions have been observed rising from Nicaragua's Telica volcano on September 1, 2021. According to the Washington VAAC, volcanic ash clouds were observed on webcam imagery rising up to 2.1 km (7 000 feet) above sea level at 14:20 UTC, drifting…
