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http://hdl.handle.net/2122/10849
Authors: | Currenti, Gilda* Zuccarello, Luciano* Bonaccorso, Alessandro* Sicali, Antonino* |
Title: | Borehole Volumetric Strainmeter Calibration From a Nearby Seismic Broadband Array at Etna Volcano | Journal: | Journal of Geophysical Research: Solid Earth | Series/Report no.: | /122 (2017) | Issue Date: | 2017 | DOI: | 10.1002/2017JB014663 | Abstract: | Strainmeter and broadband seismic signals have been analyzed jointly with the aim of calibrating a borehole strainmeter at Etna volcano by using a seismo-geodetic technique. Our results reveal a good coherence between the dynamic strains estimated from seismometer data and strains recorded by a dilatometer in a low-frequency range [0.03–0.06 Hz] at the arrival of teleseismic waves. This significant coherence enabled estimating the calibration coefficient and making a comparison with calibration results derived from other methods. In particular, we verified that the proposed approach provides a calibration coefficient that matches the results obtained from the comparison of the recorded strain both with theoretical strain tides and with normal-mode synthetic straingrams. The approach presented here has the advantage of exploiting recorded seismic data, avoiding the use of computed strain from theoretical models. |
Appears in Collections: | Article published / in press |
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Currenti_et_al-2017-Journal_of_Geophysical_Research-_Solid_Earth.pdf | 1.05 MB | Adobe PDF | View/Open |
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