Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/2919
DC Field | Value | Language |
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dc.contributor.authorall | Walter, W.; Lawrence-Livermore National Laboratory | en |
dc.contributor.authorall | Mayeda, K.; Weston Geophysical Corporation, Lexington, Massachusetts, USA. | en |
dc.contributor.authorall | Malagnini, L.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.authorall | Scognamiglio, L.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.date.accessioned | 2007-12-03T13:59:19Z | en |
dc.date.available | 2007-12-03T13:59:19Z | en |
dc.date.issued | 2007 | en |
dc.identifier.uri | http://hdl.handle.net/2122/2919 | en |
dc.description.abstract | We develop a new methodology to determine apparent attenuation for the regional seismic phases Pn, Pg, Sn, and Lg using coda-derived source spectra. The apparent Q, combining path and site attenuation, is determined from the difference between the geometrical spreading-corrected amplitude and the independently determined source spectra derived from the coda methodology. We apply the technique to 50 earthquakes with magnitudes greater than 4 in central Italy as recorded by MEDNET broadband stations around the Mediterranean at local-to-regional distances. A power law attenuation of the form Q(f) = Qof^gamma fit all the phases quite well over the 0.5 to 8 Hz band. The measured apparent Q values are quite repeatable from event to event. Finding the attenuation function in this manner guarantees a close match between inferred source spectra from direct waves and coda techniques. This is important if coda and direct wave amplitudes are to produce consistent seismic results. | en |
dc.language.iso | English | en |
dc.publisher.name | American Geophisycal Union | en |
dc.relation.ispartof | Geophysical Research Letters | en |
dc.relation.ispartofseries | / 34(2007) | en |
dc.subject | wave propagation | en |
dc.title | Regional body-wave attenuation using a coda source normalization method: application to MEDNET records of earthquakes in Italy | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | L10308 | en |
dc.subject.INGV | 04. Solid Earth::04.06. Seismology::04.06.06. Surveys, measurements, and monitoring | en |
dc.identifier.doi | 10.1029/2007GL029990 | en |
dc.description.obiettivoSpecifico | 3.1. Fisica dei terremoti | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | reserved | en |
dc.contributor.author | Walter, W. | en |
dc.contributor.author | Mayeda, K. | en |
dc.contributor.author | Malagnini, L. | en |
dc.contributor.author | Scognamiglio, L. | en |
dc.contributor.department | Lawrence-Livermore National Laboratory | en |
dc.contributor.department | Weston Geophysical Corporation, Lexington, Massachusetts, USA. | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | 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.author.dept | Lawrence-Livermore National Laboratory | - |
crisitem.author.dept | UC Berkeley | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione ONT, Roma, Italia | - |
crisitem.author.orcid | 0000-0003-0980-0605 | - |
crisitem.author.orcid | 0000-0001-5809-9945 | - |
crisitem.author.orcid | 0000-0002-5437-5276 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
Appears in Collections: | Article published / in press |
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File | Description | Size | Format | Existing users please Login |
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Walter_Mayeda_Malagnini_Scognamiglio.pdf | Main Article | 726.39 kB | Adobe PDF |
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