Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/6428| DC Field | Value | Language |
|---|---|---|
| dc.contributor.authorall | Gulia, L.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Bologna, Bologna, Italia | en |
| dc.contributor.authorall | Wiemer, S.; Swiss Seismological Service, ETH Zurich | en |
| dc.date.accessioned | 2010-12-21T07:30:40Z | en |
| dc.date.available | 2010-12-21T07:30:40Z | en |
| dc.date.issued | 2010-05-21 | en |
| dc.identifier.uri | http://hdl.handle.net/2122/6428 | en |
| dc.description | An edited version of this paper was published by AGU. Copyright (2010) American Geophysical Union | en |
| dc.description.abstract | We explore the hypothesis that the relative size distribution of earthquakes, or b‐value, systematically depends on the style‐of‐faulting of seismotectonic zones. Because the b‐value has been shown to be inversely proportional to stress, we expect to find b(thrust) < b (strike‐slip) < b(normal). We test this expectation for the case of Italy. We first of all build a seismotectonic zonation model, consisting of 10 distinct tectonic zones. The faulting style of each zone is then characterized by the summed moment tensor of first‐motion and full‐waveform based focal mechanism. We calculate the b‐value for each zone: the lowest values are obtained for reverse zones (0.75– 0.81), highest for the normal (1.09), followed by the strikeslips (0.9–0.92). Our results suggest that b‐values, which are a critical parameter in all seismic hazard assessments, should be set according to the local faulting regimes. In addition, seismotectonic zonation models should take b‐value variations as one input. | en |
| dc.language.iso | English | en |
| dc.publisher.name | AGU | en |
| dc.relation.ispartof | Geophysical Research Letters | en |
| dc.relation.ispartofseries | /37 (2010) | en |
| dc.subject | b-value | en |
| dc.subject | stress regime | en |
| dc.title | The influence of tectonic regimes on the earthquake size distribution: A case study for Italy | en |
| dc.type | article | en |
| dc.description.status | Published | en |
| dc.type.QualityControl | Peer-reviewed | en |
| dc.description.pagenumber | L10305 | en |
| dc.subject.INGV | 04. Solid Earth::04.06. Seismology::04.06.03. Earthquake source and dynamics | en |
| dc.identifier.doi | 10.1029/2010GL043066 | en |
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Wiemer, S., D. Giardini, D. Fäh, N. Deichmann, and S. Sellami (2009), Probabilistic seismic hazard assessment of Switzerland: best estimates and uncertainties, J. Seismol., 13, 449–478, doi:10.1007/s10950-008- 9138-7. | en |
| dc.description.obiettivoSpecifico | 3.1. Fisica dei terremoti | en |
| dc.description.journalType | JCR Journal | en |
| dc.description.fulltext | reserved | en |
| dc.contributor.author | Gulia, L. | en |
| dc.contributor.author | Wiemer, S. | en |
| dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Bologna, Bologna, Italia | en |
| dc.contributor.department | Swiss Seismological Service, ETH Zurich | en |
| item.openairetype | article | - |
| item.cerifentitytype | Publications | - |
| item.languageiso639-1 | en | - |
| item.grantfulltext | restricted | - |
| item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
| item.fulltext | With Fulltext | - |
| crisitem.classification.parent | 04. Solid Earth | - |
| crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
| Appears in Collections: | Article published / in press | |
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