An earthquake swarm with over 300 events over 48 hours is in progress on the Reykjanes Ridge southwest of Eldey, Iceland, since March 23, 2026, with the largest earthquake thus far registered as M4.4. The Icelandic Meteorological Office said there are no indications linking the activity to volcanic processes on the Reykjanes Peninsula.
A shallow earthquake registered by the USGS as M5.4 struck Culberson County, Texas, near the New Mexico border, at 01:47 UTC on May 4, 2025 (20:47 LT on May 3). The agency reports a depth of 7.5 km (4.6 miles). The earthquake occurred in an area of intense oil and gas activity within the Permian Basin.
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).
An earthquake swarm began off Reykjanestá, Iceland at 14:30 UTC on March 12, 2025, with more than 104 events by 18:20 UTC.
A new study published this month in Nature Communications reports that burst-like seismic swarms have been a defining feature of the volcanic unrest at Campi Flegrei since 2021.
An intense earthquake swarm is in progress in the Campi Flegrei volcanic caldera, southern Italy, since 15:53 UTC on February 15, 2025. More than 556 earthquakes with magnitudes up to M3.9 were registered by 13:00 UTC on February 18. As a precautionary measure, schools in the town of Pozzuoli, which is close to the epicenter of the earthquakes, are closed today.
An earthquake swarm began in the Campi Flegrei area of southern Italy at 16:53 LT (15:53 UTC) on February 15, 2025. The strongest in the series thus far was M3.9 on February 16.
A series of strong earthquakes, a newly opened volcanic vent, and the appearance of large cracks near the long-dormant Dofen volcano in Ethiopia’s Afar region triggered the evacuation of thousands of people on January 4, 2025.
A new vent opened at Dofan volcano in Ethiopia’s Afar region, releasing powerful jets of steam, rocks, and mud on January 3, 2025. The development comes during a series of earthquakes recorded in the region since December 22 and raised concerns about a potential volcanic eruption — which would be the first on record.
A series of over 100 shallow earthquakes have struck 48 km (30 miles) on the edge of the Hanford nuclear site northwest of Washington’s Tri-Cities since Saturday, September 21, 2024, with scientists attributing the tremors to tectonic activity near the Yakima Fold and Thrust Belt.
