The seismic swarm occurred in the Campi Flegrei area near the Pisciarelli fumarole in the Solfatara crater in Italy on the night of Sunday, April 26, 2020. Phlegrean Fields is a large volcanic area located west of Naples.
It consisted of 34 tremors with a magnitude of 3, 1 and a depth of 1 to 2 km.
Seismologists from the Vesuvius Observatory (INGV Naples Branch) who analyzed the events did not find any anomalies regarding the current trend of the ongoing seismic crisis.
"Shocks of seismic events, which in some cases can be felt by the population, usually occur during periods of bradyseismic activity," they said.
Observatory scientists continue to investigate fumaroles in the Pisciarelli area and report that no new vents have been opened.
In the 7 days before April 21, the observatory recorded a total of 21 earthquakes in the Campi-Flegrei area, with magnitudes up to 1, 1.
Phlegrean Fields is a large volcanic region located to the west of Naples on the shores of the Pozzuoli Bay, bounded from the west by Cape Miseno, and from the east by Cape Posillipo, which in turn is the northern bay of the Gulf of Naples.