Strong eruption at Marapi volcano, Indonesia
A strong eruption started at Marapi volcano, Sumatra, Indonesia at 05:19 UTC (12:19 local time) on December 22, 2023.
The Weekly Volcanic Activity Report: December 13 – 19, 2023
New activity/unrest was reported for 7 volcanoes from December 13 – 19, 2023. During the same period, ongoing activity was reported for 19 volcanoes.
No visible eruption at Iceland’s Sundhnúksgígar, lava flow possible in channels
The eruption site at Sundhnúksgígar, Reykjanes, Iceland, showed no active lava flow on December 21, 2023, with signs of diminishing activity and a decrease in seismic events.
Small explosion at Kanaga volcano, Aviation Color Code raised to Yellow, Alaska
A small explosion was detected at Kanaga Volcano, Alaska at 07:31 UTC on December 19, 2023.
Volcanic eruption starts near Grindavik, Reykjanes Peninsula, Iceland
A new volcanic fissure eruption started at 22:17 UTC on December 18, 2023, about 4 km (2.5 miles) NE of the town of Grindavik, Reykjanes, Iceland. The eruptive fissure is about 4 km long, with the northern end just east of Stóra-Skógfell and the southern end just east of Sundhnúk.
Intense spattering and lava overflow at Stromboli’s Sciara del Fuoco, Italy
A small lava flow began to spill from Stromboli’s crater terrace onto the upper Sciara del Fuoco around 20:30 UTC on December 17, 2023, with intense spattering from the central northern crater area.
Svartsengi continues to inflate, ongoing possibility of additional dikes forming or an eruption, Iceland
Although the rate of inflation at Svartsengi has decreased somewhat since Friday, December 8, 2023, it’s still greater than it was prior to the formation of the dike that traveled under Grindavík on November 10.
The Weekly Volcanic Activity Report: December 6 – 12, 2023
New activity/unrest was reported for 4 volcanoes from December 6 – 12, 2023. During the same period, ongoing activity was reported for 18 volcanoes.
The Weekly Volcanic Activity Report: November 29 – December 5, 2023
New activity/unrest was reported for 2 volcanoes from November 29 to December 5, 2023. During the same period, ongoing activity was reported for 14 volcanoes.
Geodetic modeling indicates reduced eruption threat at Svartsengi, magma accumulation continues, Iceland
The Icelandic Meteorological Office (IMO) reports a decreased likelihood of an eruption at Svartsengi following the cessation of magma inflow to the November 10 dike. While magma accumulation continues beneath Svartsengi, the immediate eruption risk along the dike has significantly reduced.