The relative seismic tranquility continues to Campi Flegreiwhere in the last week they have been recorded 35 earthquake shocks With maximum magnitude 2.1, in line with the previous week: to affirm it is the last Bulletin of the Vesuvian Observatory of the EngV relating to the period from 15 to 21 September. There are no significant variations even as regards the lifting of the soil due to bradyseismstable with a rate of 15 ± 3 mm per month, and in the geochemical parameters of the area, with the Fumarola di Pisciarelli which records an average temperature of 94 ° C.
The situation of the Flegrei fields on earthquakes and geochimic: the data of the bulletin
The 35 earthquake shocks recorded by the Vesuvian Observatory in the Flegrei fields have had a magnitude between 0.0 and 2.1, of which 4 with magnitude greater than 1.0. Therefore, they were weak and difficult to notice the population, despite the reduced depth typical of the bradisismic seismicity that originates from the rise of the ground and not from the activation of fault. In particular, the maximum depth of the hypocenter was approximately 3 km.
Even the geochemistry of the Phlegraean area proved to be in line with the trends of the area, both at the level of gas flows emitted and in terms of the smoky temperature: Pisciarelli stable with an average value of 94 ° C.
The lifting of the bradisisismic soil continues without variations
The average lift speed of the soil remains unchanged with a rate of 15 ± 3 millimeters per monthstable since the beginning of April. This is a clear decrease compared to the 30 millimeters per month recorded between mid -February and late March but an increase compared to the 10 millimeters per month detected between the last months of 2024 and the beginning of 2025.
From January 2024 Rione Terra, at the center of the volcanic caldera, has risen to 33.5 centimeters.
The synthesis of the Ingv bulletin of 16 September on the Flegrei Campi
The latest weekly monitoring of the Flegrei monitoring bulletin does not evidence signs of short -term evolution of the situation in the area. In particular:
- stable seismicity with 35 earthquakes and maximum magnitude 2.1, of which 4 with a magnitude greater than 1.0, in line with the previous week and decreasing compared to periods in which more intense shocks have been recorded.
- soil lifting stable to 15 ± 3 mm per montha value that remains constant since the beginning of April.
- stable geochemistry without significant variations compared to the already known trends of heating and increased gas flows emitted by the subsoil.
