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http://hdl.handle.net/2122/3553| Authors: | Del Pezzo, E.* Petrosino, S.* |
Title: | Wood Anderson Magnitude Scale for Mt. Vesuvius | Issue Date: | 1999 | URL: | http://www.ov.ingv.it/doc/ofr99003.pdf | Series/Report no.: | ofr99003 | Keywords: | Vesuvius Local magnitude |
Subject Classification: | 04. Solid Earth::04.06. Seismology::04.06.04. Ground motion | Abstract: | A Mathcad-8 program to calculate a revised magnitude scale is presented. An application to Mt. Vesuvius is included as a program test. Wood-Anderson seismograms for 131 local earthquakes recorded at station BKE (Osservatorio Vesuviano seismic network) were synthesized to estimate local magnitude from the original definition: Ml=log Amax(D) - logAo(D) The distance correction logAo(D) was empirically determined simulating a wave packet which propagates in a structure with assigned Q. Moment magnitude (calculated both with Kanamori and Tatcher-Hanks formulas) was also determined from the displacement spectra. Finally a relation between Wood-Anderson magnitude and duration magnitude was derived, allowing the estimate of local magnitude from the duration of the earthquake. |
| Appears in Collections: | Reports |
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| File | Description | Size | Format | |
|---|---|---|---|---|
| ofr99003.pdf | report | 160.11 kB | Adobe PDF | View/Open |
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