An earthquake swarm with the strongest quake registered as an M4.6 quake struck the Campi Flegrei area in southern Italy on June 30, 2025, prompting evacuations and train delays in the region. It was the strongest tremor to strike the region in 40 years, surpassing the M4.4 quakes of March and May.
An explosive eruption from Mount Etna’s Southeast Crater was observed at 04:33 UTC on June 19, 2025, sending ash up to 6 000 m (19 700 feet) and producing lava overflows toward Valle del Leone. As a result the Aviation Code was raised to Red.
A swarm of earthquakes struck Italy’s Campi Flegrei region early Thursday, June 5, 2025, starting at 04:39 UTC. At least nine tremors were recorded within hours, the strongest reaching magnitude 3.2. The activity adds to growing concerns in an area already showing long-term signs of volcanic unrest.
Footage captured on June 2, 2025, shows people fleeing as an eruption at Mount Etna’s Southeast Crater produces pyroclastic flow and an ash plume up to 6.5 km (21 325 feet).
A sharp increase in volcanic tremor preceded a new Strombolian eruption at Mount Etna, Italy, early on June 2, 2025, with ash and SO2 clouds drifting southwest. The Aviation Color Code was raised to Red at 03:32 UTC and downgraded to Orange at 06:39 UTC.
A new earthquake swarm began in the Campi Flegrei caldera at 14:23 local time on May 14, 2025, just five hours after Italy’s National Institute of Geophysics and Volcanology (INGV) reported the end of a previous swarm that led to a state of emergency declaration.
Strombolian activity at Mount Etna’s Southeast Crater evolved into lava fountaining on April 30, 2025, producing ash emissions and prompting a temporary elevation of the Aviation Color Code to Red. This was the 11th eruptive episode at Etna since March 15.
Mount Etna’s Southeast Crater exhibited intensified Strombolian activity on April 8, 2025, leading to strong emission of volcanic ash clouds reaching altitudes of approximately 5.5 km (3.4 miles) above the volcano and drifting southeast. The Aviation Color Code was raised to Red.
A rapid increase in volcanic tremor was recorded at Mount Etna, Italy on March 24, 2025, followed by explosive activity at the Southeast Crater. The eruption occurred after tremor levels rose significantly, prompting authorities to raise the Aviation Color Code to Red at 10:18 UTC.
A shallow earthquake registered by the INGV as M4.4 hit the Campi Flegrei region of Italy at 00:25 UTC (01:25 LT) on March 13, 2025. The agency is reporting a depth of 2 km (1.2 miles). The earthquake matched the strongest event in 40 years but showed unprecedented ground accelerations, indicating greater intensity, according to the Vesuvius Observatory. The USGS and EMSC reported a magnitude of 4.2, with USGS reporting a depth of 10 km (6.2 miles) and EMSC 3 km (1.9 miles).
