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.

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New activity/unrest was reported for 6 volcanoes from March 27 to April 2, 2024. During the same period, ongoing activity was reported for 16 volcanoes.

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