2022
DOI: 10.3390/app13010194
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Detection of Low Frequency Seismicity at Mt. Vesuvius Based on Coherence and Statistical Moments of Seismic Signals

Abstract: Mt. Vesuvius is a high-hazard active volcano surrounded by a densely populated area. Since human activities generate high levels of seismic noise, recognizing low-amplitude seismic events in the signals recorded by the local seismic monitoring network operating at Vesuvius is very difficult. Here, we describe an automatic procedure applied to continuous data with the aim of finding low-amplitude–low-frequency events hidden in the recorded signals. The methodology is based on the computation of two spectral par… Show more

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Cited by 3 publications
(2 citation statements)
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“…Previous works show that seismicity in volcanic environments is often used to track the propagation of fluids within the plumbing system, with recent outstanding cases involving the migration over tens of kilometers and even across the whole crust (Cesca et al, 2020;Cesca et al, 2022). The spatial distribution of volcano seismicity with different characteristics, such as a different frequency content of their signals, is often interpreted to understand the plumbing system and different processes along complex paths for fluid migration (del Fresno et al, 2023;Gaete et al, 2019;Galluzzo et al, 2023). A very visible difference between the earthquake families resides in the frequency content of their waveforms.…”
Section: Figurementioning
confidence: 99%
“…Previous works show that seismicity in volcanic environments is often used to track the propagation of fluids within the plumbing system, with recent outstanding cases involving the migration over tens of kilometers and even across the whole crust (Cesca et al, 2020;Cesca et al, 2022). The spatial distribution of volcano seismicity with different characteristics, such as a different frequency content of their signals, is often interpreted to understand the plumbing system and different processes along complex paths for fluid migration (del Fresno et al, 2023;Gaete et al, 2019;Galluzzo et al, 2023). A very visible difference between the earthquake families resides in the frequency content of their waveforms.…”
Section: Figurementioning
confidence: 99%
“…Another important functional attribute is the spectrum of seismograms, as the result of the Fourier transform. There are also parametric attributes of the spectrum (see [27]). It is interesting to note that the spectrum, although functional, i.e., continuous, can also be defined as a group-parametric attribute, which will consider later in detail.…”
Section: Purpose and Categories Of Attributesmentioning
confidence: 99%