The Weekly Volcanic Activity Report: February 26–March 4, 2025
New activity/unrest was reported for 9 volcanoes from February 26 to March 4, 2025. During the same period, ongoing activity was reported for 23 volcanoes.
Lava fountains reach 180 m (600 feet) in new eruptive episode at Kilauea, Hawai’i
Episode 12 of the ongoing Halema’uma’u eruption began at 07:30 LT (17:30 UTC) on Tuesday, March 4, 2025, with sporadic lava flows from the north and south vents. Continuous fountaining reached heights of 150–165 m (490–540 feet) by 00:20 UTC on March 5 and is expected to increase further. The eruption is part of the ongoing activity that started on December 23, 2024. The USGS maintains the Volcano Alert Level at Watch and the Aviation Color Code at Orange.
Lava overflow, increase in volcanic tremor at Stromboli, Italy
An increase in volcanic tremor accompanied by lava overflow from the North crater area has been observed at Stromboli volcano on February 28, 2025. The activity includes a modest lava fountain at vent N2, with the lava flow confined to the upper portion of the Sciara del Fuoco.
New degassing pit crater forms at Etna’s Bocca Nuova Crater, Italy
A new degassing pit crater was identified at 3.1 km (10 170 feet) a.s.l. on the southern flank of Etna’s Bocca Nuova Crater on February 28, 2025. A modest lava overflow was also observed from the Southeast Crater at 07:00 LT (06:00 UTC), producing a lava flow on the upper southern flank of the crater.
The Weekly Volcanic Activity Report: February 19–25, 2025
New activity/unrest was reported for 8 volcanoes from February 19 to 25, 2025. During the same period, ongoing activity was reported for 20 volcanoes.
Frans Xavier Seda Airport temporarily closed after eruption at Lewotobi Laki-Laki, Indonesia
The Frans Xavier Seda Airport was temporarily shut down on Wednesday, February 26, 2025, after an eruption at Lewotobi Laki-Laki.
Seismic unrest near Fentale volcano persists month after rare methane emissions, Ethiopia
Nearly a month after satellites detected massive methane plumes spewing from Ethiopia’s Mount Fentale on January 31, 2025, new data shows emissions have declined since February 9—yet ongoing seismic unrest, including a magnitude 6.0 earthquake on February 14, keeps scientists and locals on high alert.
Earthquake swarm and ground uplift at Campi Flegrei, Italy
Over 600 earthquakes were recorded at Campi Flegrei, Italy, between February 17 and 23, 2025, with the largest measuring M3.2. Around 1 cm (0.4 inches) of ground uplift was observed in the area of maximum deformation, coinciding with the onset of an earthquake swarm on February 15.
Drone footage captures ephemeral vent and expanding lava field at Mount Etna, Italy
A drone video captured on February 24, 2025, shows the evolving lava field from an ephemeral vent at 3.05 km (10 006 feet) a.s.l. on the southwestern slope of Mount Etna, Italy.
Increased activity, Aviation Color Code raised to Orange at White Island volcano, New Zealand
Small ash emissions along with large white steam plumes have been observed over the past week at White Island volcano in New Zealand, according to a bulletin released by the GNS at 14:30 LT (01:30 UTC) on Monday, February 24, 2025. The Alert Level remains at 2 while the Aviation Color Code has been raised to Orange.
