Estimation of moment magnitude (Mw) for small-to-moderate magnitude earthquakes in metropolitan France
1 : Institut de physique du globe de Strasbourg
(IPGS)
-
Site web
université de Strasbourg, INSU, CNRS : UMR7516
5 Rue René Descartes 67084 STRASBOURG CEDEX -
France
2 : Université de Strasbourg, CNRS, EOST, UMS830, F-67000 Strasbourg, France
Université de Strasbourg : UMS830, CNRS : UMS830, université de Strasbourg : UMS830
Reliable estimation of Mw for small seismic events is important to assess regional ground-motion attenuation and seismic hazard, however it is still a challenge and generally not performed routinely. Ml to Mw scaling are generally used for small seismic events, but can lead to inappropriate Mw scaled from ML due to lack of knowledge of attenuation. For the metropolitan French seismicity between 2014 and 2018 located by the BCSF-RéNaSS, we performed a computation of moment magnitude using a spectral fitting method, and carried out an exhaustive study of magnitudes at the stations used.
| Type : | : | Poster |
| Thématiques | : | Axe transverse Simicité |
| PDF version | : |  PDF version |
