The Anak Krakatau volcano in Indonesia entered a period of intense eruptive activity around 05:28 UTC on November 26, 2023. The volcano has since produced numerous explosions, with ash columns reaching heights of up to 2.1 km (7 000 feet) above sea level. Officials are urging residents to stay away at least 5 km (3.1 miles) from the volcano.
Since the early hours of November 24, 2023, Mount Etna has exhibited intensified Strombolian activity at its SE Crater, as observed by INGV-OE. Over the following days, this activity has persisted, marked by modest ash emissions and fluctuating seismic intensity, with the Aviation Color Code maintained at Orange.
On November 21, 2023, the Icelandic Meteorological Office (IMO) reported a decrease in seismic activity in the Reykjanes Peninsula, with 165 earthquakes, all below magnitude 2, detected since midnight. This decline contrasts with the previous days’ average of 1 500 to 1 800 earthquakes per 24-hour period.
On Monday, November 20, 2023, at approximately 15:30 local time (06:30 UTC), Papua New Guinea’s Ulawun volcano erupted violently, sending volcanic ash as high as 15 km (50 000 feet) above sea level. The Aviation Color Code was raised to Red and the Alert Level to 4 (highest). Despite widespread rumors, no tsunami warnings have been issued for the surrounding regions, including Japan and Australia.
Seismicity related to the magma intrusion that formed suddenly a week ago in Reykjanes Peninsula, Iceland remains high and constant, although the level of activity is substantially lower than from November 10 to 12, 2023.
New activity/unrest was reported for 1 volcano from November 8 to 14, 2023. During the same period, ongoing activity was reported for 18 volcanoes.
Over 700 earthquakes have been detected along the orientation of a magma intrusion in Iceland during the first 12 hours of November 14, 2023. The latest measurements show that the graben-like formation is still forming and is mechanically active.
Seismicity along the 15-km (9.3 miles) long magma intrusion continues, although the size and intensity of the activity is decreasing, the Icelandic Met Office reported at 13:00 UTC on November 13, 2023
Mount Etna, Europe’s highest and most active volcano, has shown a significant increase in volcanic activity, leading the National Institute of Geophysics and Volcanology, Etna Observatory to raise the Aviation Color Code to Red on November 12, 2023.
A new update from the Icelandic Meteorological Office (IMO) at 18:30 UTC today has raised significant concerns about an imminent volcanic eruption near Grindavík on the Reykjanes Peninsula. The latest data, stemming from a crucial status meeting involving the IMO, the University of Iceland, and the Department of Civil Protection and Emergency Management, points to a substantial risk of volcanic activity in the coming days.
