Nearly 900 earthquakes were detected at the new submarine volcano near Mayotte between February 16 and 29, 2020, according to the latest REVOSIMA report. French geological survey BRGM noted that there were 138 localized tremors with an average of 10 per day during…
Strong strombolian activity continues at Guatemalan Fuego volcano, with volcanic ash reaching up to 4 800 m (15 748 feet), according to the National Institute for Seismology, Vulcanology, Meteorology, and Hydrology of Guatemala (INSIVUMEH). Up to 14 moderate to…
New activity/unrest was reported for 6 volcanoes from February 26 to March 3, 2020. During the same period, ongoing activity was reported for 15 volcanoes. New activity/unrest: Bagana, Bougainville (Papua New Guinea) | Great Sitkin, Andreanof Islands (USA) | Merapi,…
Earthquake activity near Mount Thorbjorn has significantly decreased recently, the Icelandic Met Office (IMO) noted at 02:21 UTC on March 4, 2020. The office added that uplift is no longer being observed, which is likely due to the halt of magma inflow. Indications…
Crater Lake (Te Wai ā-moe) has responded to a short-lived episode of volcanic earthquakes beneath Mount Ruapehu, detected on February 22 and 23, 2020. Seismicity declined after initial uptick but is now back at similar levels. To further understand the current…
A high-level eruption took place at the Indonesian Merapi volcano, Central Java at 22:22 UTC on March 2, 2020. According to the Darwin VAAC, volcanic ash reached 10.7 km (35 000 feet) above sea level. Pyroclastic flows descended 2 km (1.2 miles) down the slopes of…
New activity/unrest was reported for 4 volcanoes from February 19 to 25, 2020. During the same period, ongoing activity was reported for 16 volcanoes. New activity/unrest: Huaynaputina, Peru | Reykjanes, Iceland | San Miguel, El Salvador | Semisopochnoi, United…
Earthquake activity at Great Sitkin volcano has increased over the past month and is now above background levels, forcing the Alaska Volcano Observatory (AVO) to raise the Aviation Color Code to Yellow and the Alert Level to Advisory at 20:58 UTC on February 26,…
A large explosion took place at Mexico's Popocatepetl volcano at around 06:20 UTC on February 25, 2020. According to the Washington VAAC, volcanic ash is rising up to 7.9 km (26 000 feet) above sea level. At 11:13 UTC, the volcanic ash cloud was 130 km (80…
A short-lived episode of volcanic earthquakes occurred beneath Mt. Ruapehu on February 22 and 23, 2020. The sequence now appears to be over. The Volcanic Alert Level, therefore, remains at Level 1. The last known eruption of this volcano took place in 2007 (VEI…
