Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/8973
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dc.contributor.authorallSbarra, P.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italiaen
dc.contributor.authorallTosi, P.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italiaen
dc.contributor.authorallDe Rubeis, V.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italiaen
dc.date.accessioned2014-03-27T12:27:47Zen
dc.date.available2014-03-27T12:27:47Zen
dc.date.issued2014-03-07en
dc.identifier.urihttp://hdl.handle.net/2122/8973en
dc.description.abstractIntensity scales define the criteria used to determine different levels of shaking in relation to environmental effects. Objective evaluations of low intensity degrees based on transient effects may be difficult. In particular, estimations for the number of people feeling an earthquake are critical, and are qualitatively described by words such as “few”, “many”, and “most” for determining various intensity levels. In general, such qualitative amounts are converted into specific percentages for each macroseismic scale. Additionally, estimations of macroseismic intensity are influenced by variables that are mentioned in macroseismic scale degree descriptions. For example, the Mercalli-Cancani-Sieberg (MCS; Sieberg, 1930) and the Modified Mercalli Intensity (MMI) scales (Wood and Neumann, 1931) describe the intensity II as “Felt only by a few people, extremely susceptible, in perfectly quiet situations, almost always on the upper floors of buildings”. Another example is the European Macroseismic Scale (EMS) (Grunthal, 1998) that describes the intensity V as “felt indoors by most, outdoors by few. Many sleeping people awake”. In this work, we focus on two variables referred to as people’s physical “situation” (what were you doing?), here categorized as “sleeping”, “at rest”, or “in motion”; and the observer’s “location”, here categorized as “higher floors”, “lower floors”, and “outdoors”. Both variables have a partial influence on intensity assessments because they condition vibration perception. However, it is important to study, using an experimental method, the weights of these variables in the quantification of felt effects. Musson (2005a) also recognized the influence of such conditions on the number of people feeling an earthquake, stating that the proportion of people in different conditions “are generally difficult to quantify in any case”. Today, we have a large amount of data available through the macroseismic web site “haisentitoilterremoto” associated with specific observer conditions. Using this data, a study of these effects is possible. For this analysis, we placed attention on transitory effects that, in the past, could not be easily studied due to the intrinsic difficulty in collecting this type of data. The aim of this work was to specifically analyze and quantify how the observer’s “situation” and “location” influence earthquake perception suggesting a new scale description that can be easily used for low intensity estimation.en
dc.language.isoEnglishen
dc.publisher.nameSeismological Society of Americaen
dc.relation.ispartofSeismological Research Lettersen
dc.relation.ispartofseries2/85(2014)en
dc.subjectmacroseismic scaleen
dc.subjectearthquake perceptionen
dc.subjectmacroseismic questionnaireen
dc.titleHow Observer Conditions Impact Earthquake Perceptionen
dc.typearticleen
dc.description.statusPublisheden
dc.type.QualityControlPeer-revieweden
dc.description.pagenumber306-313en
dc.identifier.URLhttp://srl.geoscienceworld.org/content/85/2/306.extracten
dc.subject.INGV04. Solid Earth::04.06. Seismology::04.06.04. Ground motionen
dc.identifier.doi10.1785/0220130080en
dc.relation.referencesBoatwright, J. and E. Phillips (2012), Exploiting the demographics of “Did You Feel It?” responses to estimate the felt area of moderate earthquakes, 84th Annual Meeting of the Eastern Section of the Seismological Society of America, October 28-30, 2012. Davis, J. C. (1986), Statistics and data analysis in geology, Wiley. Grünthal, G. (1998), European Macroseismic Scale 1998 (EMS-98). Cahiers du Centre Européen de Géodynamique et de Séismologie Luxembourg, 15, 1-99. Murphy, J. R. and L. J. O’Brien (1977), The correlation of peak ground acceleration amplitude with seismic intensity and other physical parameters, Bull. Seism. Soc. Am., 67, 877-915. Musson, R.M.W. (2005a), On the perceptibility of earthquakes, J. Seismol., 10, 157-162, doi: 10.1007/s10950-005-9007-6. Musson, R.M.W. (2005b), Intensity attenuation in the U.K., J. Seismol., 9, 73-86. Musson, R. M. W., G. Grüntal, and M. Stucchi (2010), The comparison of macroseismic intensity scales, J. Seismol., 14, 413-428, doi: 10.1007/s10950-009-9172-0. Pasolini, D., D. Albarello, P. Gasperini, V. D’Amico, and B. Lolli (2008), The attenuation of seismic intensity in Italy, Part II: modeling and validation, Bull. Seism. Soc. Am., 98, 692-708, doi: 10.1785/0120070021. Sbarra, P., P. Tosi, and V. De Rubeis (2010), Web-based macroseismic survey in Italy: method validation and results, Nat. Haz., 54, 563-581, doi:10.1007/s11069-009-9488-7. Sbarra, P., P. Tosi, V. De Rubeis, and A. Rovelli (2012), Influence of observation floor and building height on macroseismic intensity, Seismol. Res. Lett., 83, 261-266, doi: 10.1785/gssrl.83.2.261. Sieberg, A. (1930), Scala MCS (Mercalli-Cancani-Sieberg). Geologie der Erdbeben, Handbuch der Geophysik, 2, 552-555. Wald, D.J., V. Quitoriano, B. Worden, M. Hopper, and J.W. Dewey (2011), USGS “Did You Feel It?” Internet-based macroseismic intensity maps, Annals of Geophysics, 54, 688-707, doi: 10.4401/ag-5354. Wood, H. and F. Neumann (1931), Modified Mercalli Intensity scale of 1931, Bull. Seism. Soc. Am., 21, 277-283.en
dc.description.obiettivoSpecifico3T. Pericolosità sismica e contributo alla definizione del rischioen
dc.description.obiettivoSpecifico4IT. Banche datien
dc.description.journalTypeJCR Journalen
dc.description.fulltextopenen
dc.relation.issn0895-0695en
dc.relation.eissn1938-2057en
dc.contributor.authorSbarra, P.en
dc.contributor.authorTosi, P.en
dc.contributor.authorDe Rubeis, V.en
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italiaen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italiaen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italiaen
item.openairetypearticle-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextopen-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia-
crisitem.author.orcid0000-0003-1055-8705-
crisitem.author.orcid0000-0003-3247-4318-
crisitem.author.orcid0000-0001-7119-631X-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.classification.parent04. Solid Earth-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
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