The Weekly Volcanic Activity Report: November 8 – 14, 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.
Graben-like formation in Grindavik still forming and mechanically active, Iceland
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.
Satellite data show a graben-like formation that cuts through part of Grindavík, Iceland
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
Strong explosive eruption, lava fountains at Etna volcano, Aviation Color Code raised to Red, Italy
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.
High risk of eruption near Grindavík: 15-km long magma intrusion identified northwest of town, Iceland
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.
Emergency declared as record-high magma accumulation and intense earthquake swarm force Grindavík evacuation, Iceland
In response to a significant escalation in seismo-volcanic activity on the Reykjanes Peninsula in Iceland, characterized by an exceptional accumulation of magma, the intrusion of a substantial dike, and an intense earthquake swarm, the Icelandic Meteorological Office (IMO) and Civil Defense authorities have implemented critical safety protocols on November 10, 2023. These measures include the mandatory evacuation of Grindavík and the proclamation of a state of emergency
The Weekly Volcanic Activity Report: November 1 – 7, 2023
New activity/unrest was reported for 3 volcanoes from November 1 to 7, 2023. During the same period, ongoing activity was reported for 16 volcanoes.
IMO confirms continued inflation, seismic unrest at Mt. Þorbjörn, Iceland
The Icelandic Met Office (IMO) has issued an update on the seismic and volcanic activity at Mt. Þorbjörn on the Reykjanes Peninsula, providing new data on the ongoing seismic unrest that began in late October. The uplift at the GNSS station has seen additional enlargements since the 7 cm rise previously reported over a 10-day period, reflecting continued subterranean pressure changes. The IMO, alongside the Civil Protection Agency, remains on high alert for signs of magma ascent, which could indicate a new phase in the volcanic activity of the area.
Rapid crustal uplift at Mt. Þorbjörn, Iceland
The Icelandic Met Office (IMO) has reported a considerable upsurge in seismic activity on the Reykjanes Peninsula, with over 18 500 earthquakes recorded since the swarm began on October 25, just north of Grindavík.
New island emerges near Iwo Jima in Ogasawara chain, Japan
On November 1, 2023, military personnel located on Iwoto Island witnessed the birth of a new island following intense volcanic activity. The eruption, which occurred 1 km (0.62 miles) off the island’s southern coast, was preceded by frequent volcanic tremors since October 21.
