The likelihood of an eruption at Mount Spurr has increased with gas emissions recorded on March 7 and 11, confirming ongoing volcanic unrest. The volcano is located about 120 km (75 miles) west of Anchorage (population 286 000), Alaska.
Magma accumulation beneath Svartsengi has reached its highest recorded level since the beginning of the ongoing eruption series in December 2023. The volume of magma beneath Svartsengi is now greater than what was recorded before the November 2024 eruption.
Episode 13 of Kīlauea’s ongoing eruption at Halema’uma’u crater ended at 01:13 UTC on March 12, 2025, after 12 hours and 37 minutes of lava fountaining. Lava covered over 60% of the summit floor, and sulfur dioxide (SO2) emissions peaked at 40 000 tonnes per day.
Nearly 900 people were evacuated after Guatemala’s Fuego volcano erupted on March 9, 2025, prompting an Orange Alert and emergency response.
An effusive eruption began at Guatemala’s Fuego volcano at 21:00 LT (03:00 UTC on March 10, 2025) on March 9, followed by weak to moderate pyroclastic flows descending through the Las Lajas, El Jute, Seca, and Ceniza ravines.
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.
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.
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.
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.
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.
