As per the end of swarm announcement, issued by theVesuvian Observatory of the National Institute of Geophysics and Volcanology (INGV-OV) at 23:38 pm on June 5th, The seismic swarm began at 6:39 am and was characterized by 24 earthquakes with magnitude Md ≥ 0.0 (24 localized) and with maximum magnitude Md = 3.2 ±0.3. Of these, only 11 had Md > 1 and are almost all of which occurred in the Solfatara-Pisciarelli area at a depth of between 2 and 3 km.
As usual, the map of ground accelerations for the only event of magnitude 3.2 mentioned has also been published, from which it is clear that the maximum shaking occurred in the epicentral area, with peak acceleration values equal to 18% g, rapidly attenuating towards the periphery of the caldera and with negligible values starting from 3 km from the epicentral areaThe map was produced using recordings from the accelerometric network of the Vesuvius Observatory and the RAN (National Accelerometric Network) network of the Department of Civil Protection (DPC).
Neither before nor during the swarm were significant variations detected in the measured geochemical and geodetic parameters.
INGV-OV is dedicating a strategic and constant commitment to the strengthening and modernization of the multi-parametric monitoring networks on all the Neapolitan volcanoes, with important activities focused not only on the Flegrean Caldera, but also on Vesuvius and Campi Flegrei. This effort aims to extend and improve the capacity for detection and analysis of seismic events not only in the areas close to the caldera, but also in the more distant ones, ensuring widespread coverage and an in-depth understanding of ground shaking during both local and remote seismic events. All this also in order to ensure an ever more effective response to the institutions responsible for civil protection actions and to contribute to the protection of the enormous cultural heritage of the Neapolitan area.
The first installation will concern the archaeological area of Pompeii, where geological and geophysical studies are already underway, as part of an important agreement between the INGV and the Archaeological Park of Pompeii.
More information about the measured data and the locations of the measuring points at following link.
As usual, the map of ground accelerations for the only event of magnitude 3.2 mentioned has also been published, from which it is clear that the maximum shaking occurred in the epicentral area, with peak acceleration values equal to 18% g, rapidly attenuating towards the periphery of the caldera and with negligible values starting from 3 km from the epicentral areaThe map was produced using recordings from the accelerometric network of the Vesuvius Observatory and the RAN (National Accelerometric Network) network of the Department of Civil Protection (DPC).
Neither before nor during the swarm were significant variations detected in the measured geochemical and geodetic parameters.
INGV-OV is dedicating a strategic and constant commitment to the strengthening and modernization of the multi-parametric monitoring networks on all the Neapolitan volcanoes, with important activities focused not only on the Flegrean Caldera, but also on Vesuvius and Campi Flegrei. This effort aims to extend and improve the capacity for detection and analysis of seismic events not only in the areas close to the caldera, but also in the more distant ones, ensuring widespread coverage and an in-depth understanding of ground shaking during both local and remote seismic events. All this also in order to ensure an ever more effective response to the institutions responsible for civil protection actions and to contribute to the protection of the enormous cultural heritage of the Neapolitan area.
The first installation will concern the archaeological area of Pompeii, where geological and geophysical studies are already underway, as part of an important agreement between the INGV and the Archaeological Park of Pompeii.
More information about the measured data and the locations of the measuring points at following link.
