Characterization of Distant and Moderate Earthquakes with Inexpensive MEMS Sensors: Application to the M<sub>w</sub> 6.3, 29th December 2020, Petrinja Event

In this work, we evaluate the suitability of a new MEMS sensor prototype, called ASX1000 (ADEL s.r.l., Modena, Italy), for the monitoring of distant and moderate seismic events. This device is an inexpensive capacitive accelerometer with a relatively low level of instrumental noise; it can record bo...

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Main Authors: Valeria Cascone, Jacopo Boaga
Format: Article
Language:English
Published: MDPI AG 2022-05-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/22/11/4166
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author Valeria Cascone
Jacopo Boaga
author_facet Valeria Cascone
Jacopo Boaga
author_sort Valeria Cascone
collection DOAJ
description In this work, we evaluate the suitability of a new MEMS sensor prototype, called ASX1000 (ADEL s.r.l., Modena, Italy), for the monitoring of distant and moderate seismic events. This device is an inexpensive capacitive accelerometer with a relatively low level of instrumental noise; it can record both local and far seismic events. An experimental network built with ASX1000 MEMS, located in northern Italy, was able to record the M<sub>w</sub> 6.3 Petrinja earthquake that occurred in December 2020; it had an epicentral distance of more than 350 km. We retrieved the strong motion parameters (PGA, pseudo-absolute velocity, and pseudo-absolute spectral acceleration) from the acceleration time histories recorded by the MEMS sensors. The obtained parameters were compared with the ones obtained by the closer high-quality seismometers, belonging to the INGV National Seismic Network. The comparison to the highest-quality sensors confirms a reasonable agreement of the inferred parameters. This work suggests that—in the near future—MEMS sensors could be adopted to integrate the existing seismic network. A denser coverage of sensors can sample more accurately the seismic wavefield, taking into account the large spatial variability of local geology and the relative differences in seismic response.
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spelling doaj.art-aba6784ca8754418a54ff244655d45692023-11-23T14:49:42ZengMDPI AGSensors1424-82202022-05-012211416610.3390/s22114166Characterization of Distant and Moderate Earthquakes with Inexpensive MEMS Sensors: Application to the M<sub>w</sub> 6.3, 29th December 2020, Petrinja EventValeria Cascone0Jacopo Boaga1Department of Geosciences, University of Padova, Via G. Gradenigo 6, 35131 Padova, ItalyDepartment of Geosciences, University of Padova, Via G. Gradenigo 6, 35131 Padova, ItalyIn this work, we evaluate the suitability of a new MEMS sensor prototype, called ASX1000 (ADEL s.r.l., Modena, Italy), for the monitoring of distant and moderate seismic events. This device is an inexpensive capacitive accelerometer with a relatively low level of instrumental noise; it can record both local and far seismic events. An experimental network built with ASX1000 MEMS, located in northern Italy, was able to record the M<sub>w</sub> 6.3 Petrinja earthquake that occurred in December 2020; it had an epicentral distance of more than 350 km. We retrieved the strong motion parameters (PGA, pseudo-absolute velocity, and pseudo-absolute spectral acceleration) from the acceleration time histories recorded by the MEMS sensors. The obtained parameters were compared with the ones obtained by the closer high-quality seismometers, belonging to the INGV National Seismic Network. The comparison to the highest-quality sensors confirms a reasonable agreement of the inferred parameters. This work suggests that—in the near future—MEMS sensors could be adopted to integrate the existing seismic network. A denser coverage of sensors can sample more accurately the seismic wavefield, taking into account the large spatial variability of local geology and the relative differences in seismic response.https://www.mdpi.com/1424-8220/22/11/4166seismic networkseismic ground motionMEMS sensorsPGA
spellingShingle Valeria Cascone
Jacopo Boaga
Characterization of Distant and Moderate Earthquakes with Inexpensive MEMS Sensors: Application to the M<sub>w</sub> 6.3, 29th December 2020, Petrinja Event
Sensors
seismic network
seismic ground motion
MEMS sensors
PGA
title Characterization of Distant and Moderate Earthquakes with Inexpensive MEMS Sensors: Application to the M<sub>w</sub> 6.3, 29th December 2020, Petrinja Event
title_full Characterization of Distant and Moderate Earthquakes with Inexpensive MEMS Sensors: Application to the M<sub>w</sub> 6.3, 29th December 2020, Petrinja Event
title_fullStr Characterization of Distant and Moderate Earthquakes with Inexpensive MEMS Sensors: Application to the M<sub>w</sub> 6.3, 29th December 2020, Petrinja Event
title_full_unstemmed Characterization of Distant and Moderate Earthquakes with Inexpensive MEMS Sensors: Application to the M<sub>w</sub> 6.3, 29th December 2020, Petrinja Event
title_short Characterization of Distant and Moderate Earthquakes with Inexpensive MEMS Sensors: Application to the M<sub>w</sub> 6.3, 29th December 2020, Petrinja Event
title_sort characterization of distant and moderate earthquakes with inexpensive mems sensors application to the m sub w sub 6 3 29th december 2020 petrinja event
topic seismic network
seismic ground motion
MEMS sensors
PGA
url https://www.mdpi.com/1424-8220/22/11/4166
work_keys_str_mv AT valeriacascone characterizationofdistantandmoderateearthquakeswithinexpensivememssensorsapplicationtothemsubwsub6329thdecember2020petrinjaevent
AT jacopoboaga characterizationofdistantandmoderateearthquakeswithinexpensivememssensorsapplicationtothemsubwsub6329thdecember2020petrinjaevent