Fig. 3: Comparison between the very short inter-time sequence of 12 October 2023 and the burst-like swarm of 14 April 2024.
From: Burst-like swarms in the Campi Flegrei caldera accelerating unrest from 2021 to 2024
a 30-min seismogram of the two sequences. b Location of the events of the generic very short inter-time sequence (blue circles) and the burst-like swarm (semi-transparent red circles). In background a contour plot produced with matplotlib (Python library) using data from SRTM GL1 DEM at 1 arcsec. c Seismogram and spectrogram of the 5-min window of the generic very short inter-time sequence highlighted with a yellow rectangle in (a). d Seismogram and spectrogram of the 5-min window of the burst-like swarm highlighted with a yellow rectangle in (a). Both examples are recorded by the CSOB station, component HNZ.
