1.3 magnitude shock in the crater of Vesuvius

The seismographs of the Vesuvian Observatory recorded a 1.3 magnitude shock with its epicenter in the crater area of ​​the Vesuvius at a depth of 500 meters. There have been 411 earthquakes recorded on Vesuvius since the beginning of the year, most of which were of very low magnitude. The largest one was recorded on April 28th at 5.55 am. On March 11, at 7.08 pm, a magnitude 3 earthquake occurred east of Vesuvius between Volla and Cercola. In this case it was an earthquake somewhat peripheral to the volcanic edifice of Vesuvius, which is part of the dynamics between the volcano and the regional fault that passes at the height of Sebeto.

The Naples room of the INGV communicated for the month of April that «a background seismicity remains at Vesuvius with the earthquakes occurring mainly in the crater area with a depth strongly concentrated in the first kilometre. From the GNSS, tiltimetric and tideographic data, no deformations attributable to volcanic sources are detected. The data from the permanent thermal camera show a trend in maximum surface temperatures that is fundamentally stable on the average values ​​of the previous months even if characterized by significant oscillations. Measurements with a mobile thermal camera highlight a substantially stationary trend in the maximum temperature. Finally, no significant variations in the geochemical parameters acquired were highlighted. The monitoring data indicate the continuation of the multi-year trend of decreasing hydrothermal activity within the crater area of ​​Vesuvius. Based on the current picture of exposed volcanic activity, there are no elements that suggest significant short-term developments.”

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