The epicenter was located 16.5 km (10.2 miles) SSE of Sant’Angelo (population 1 245), 19.5 km (12.1 miles) S of Ischia (population 18 564), 19.6 km (12.2 miles) S of Ischia Porto (population 18 192), 21.6 km (13.4 miles) SSE of Forio (population 15 969), and 40.4 km (25.1 miles) SW of Naples (population 909 048), Campania, Italy.
7 000 people are estimated to have felt light shaking, and 14 425 000 weak.
The USGS issued a Green alert for shaking-related fatalities and economic losses. There is a low likelihood of casualties and damage.
Overall, the population in this region resides in structures that are a mix of vulnerable and earthquake-resistant construction. The predominant vulnerable building types are unreinforced brick with mud and unknown or miscellaneous construction types.
Recent earthquakes in this area have caused secondary hazards such as landslides that might have contributed to losses.
Epicenter of M6.0 earthquake in the Tyrrhenian Sea near Naples, Italy, on March 9, 2026. Credit: TW/SAM, Google
The Mediterranean region is seismically active due to the ongoing convergence of the African and Eurasian plates at a rate of about 4 to 10 mm (0.15 to 0.4 inches) per year. This tectonic interaction began roughly 50 million years ago with the closure of the ancient Tethys Ocean, whose remnants form today’s Mediterranean Sea.
Much of the region’s seismicity occurs along major tectonic structures such as the Hellenic subduction zone south of Greece, the North Anatolian Fault Zone in Turkey, and the Calabrian subduction zone beneath southern Italy. These plate interactions generate frequent earthquakes as well as complex crustal deformation across the region.
Historically, destructive earthquakes and tsunamis have affected large parts of the Mediterranean, including Greece, Italy, Turkey, and North Africa. One of the deadliest events in Europe was the 1908 M7.2 Messina earthquake in southern Italy, which caused severe damage and a tsunami, killing an estimated 60 000 to 120 000 people.
Today’s earthquake occurred at a depth of 373 km (232 miles) — deep within the subducting African plate beneath southern Italy. It is unlikely to be related to volcanic activity at Campi Flegrei or Mount Vesuvius.
Estimated population exposure to earthquake shaking
Image credit: USGS
Selected cities exposed
Regional seismicity
Image credit: EMSC
References:
1 M6.0 earthquake Tyrrhenian Sea, Italy – USGS – March 9, 2026
2 M5.9 earthquake Tyrrhenian Sea, Italy – EMSC – March 9, 2026