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Web-based macroseismic survey in Italy: method validation and results
Language
English
Obiettivo Specifico
1.11. TTC - Osservazioni e monitoraggio macrosismico del territorio nazionale
Status
Published
JCR Journal
JCR Journal
Peer review journal
Yes
Title of the book
Issue/vol(year)
/54 (2010)
Publisher
Springer
Issued date
2010
Abstract
A new method of macroseismic surveys, based on voluntary collaboration through the Internet, has been running at the Istituto Nazionale di Geofisica e Vulcanologia (INGV) since July 2007. The macroseismic questionnaire is addressed to a single non-specialist; reported effects are statistically analysed to extrapolate a probabilistic estimate of Mercalli Cancani Sieberg and European Macroseismic Scale intensities for that observer. Maps of macroseismic intensity are displayed online in almost real time and are continuously updated when new data are made available. For densely inhabited zones, we have received reports of felt effects for even very small events (M=2). Six earthquakes are presented here, showing the ability of the method to give fast and interesting results. The effects reported in questionnaires coming from three towns are carefully analysed and assigned intensities are compared with those derived from traditional macroseismic surveys, showing the reliability of our web-based method.
References
Dengler LA, Dewey JW (1998) An Intensity Survey of Households Affected by the Northridge, California, Earthquake of 17 January 1994. Bull Seism Soc Am 88:441-462.
De Rubeis V, C Gasparini, Tosi P (1992) Determination of the macroseismic field by means of trend and multivariate analysis of questionnaire data. Bull Seism Soc Am 82:1206-1222.
DPC S4 Project. (2005) http://earthquake.rm.ingv.it
Gasperini P (2001) The Attenuation of Seismic Intensity in Italy: A Bilinear Shape Indicates the Dominance of Deep Phases at Epicentral Distances Longer than 45 km. Bull Seism Soc Am 91:826-841.
Gilles S, Musson RMW, Bossu R, Wald DJ, Quitoriano V (2008) A comparison of EMS and MMI macroseismic intensity assignments from online questionnaires. Seism Res Lett 79:,321.
Grünthal G (1998) European Macroseismic Scale 1998 (EMS-98). Cahiers du Centre Européen de Géodynamique et de Séismologie Luxembourg, 15, 1-99.
Kalman RE, (1960) A New approach to liner filtering and prediction problems. Transactions of the ASME- Journal of Basic Engineering 82 (Series D):35-45.
Marcelli I, Montecchi A (1962) Contributi per uno studio della sismicità dell'Italia. Annali di Geofisica 15:159.
Molin D (1995) Considerations on the assessment of macroseismic intensity. Annali di Geofisica, 38:805-810.
Molin D, Bernardini F, Camassi R, Caracciolo CH, Castelli V, Ercolani E, Postpischl L (2008) Materiali per un catalogo dei terremoti italiani: revisione della sismicità minore del territorio nazionale. Quaderni di geofisica, 57:1-75.
Musson RMW (2007). Macroseismic effects of the 2007 Cape St Vincent earthquake from the EMSC online questionnaire, CSEM/EMSC Newsletter, No 22, pp30-31.
QUEST (2009). http://www.ingv.it/real-time-monitoring/quest
Scognamiglio L, Tinti E, Michelini A, Dreger D, Cirella A, Cocco M, Mazza S, Piatanesi A.
Fast Determination of Moment Tensors and Rupture History: Application to the April 6th 2009, L'Aquila Earthquake. submitted 2009.
Sieberg A (1930) Scala MCS (Mercalli-Cancani-Sieberg). Geologie der Erdbeben, Handbuch der Geophysik 2:552-555.
Tosi P, De Rubeis V, Tertulliani A, Gasparini C (2000) Spatial Patterns of Earthquake Sounds and Seismic Source Geometry. Geoph Res Lett 27:2749–2752.
Wald DJ, Quitoriano V, Dengler LA, Dewey JW (1999) Utilization of the Internet for rapid community intensity maps. Seism. Res Lett,70, 680-697.
Wald DJ, Worden BC, Quitoriano V, Pankow KL (2006) shakemap manual version 1.0 Technical Manual, User's Guide, and Software Guide. http://pubs.usgs.gov/tm/2005/12A01/pdf/508TM12-A1.pdf
Wood H, Neumann F (1931) Modified Mercalli Intensity scale of 1931. Bull Seism Soc Am 21:277-283.
De Rubeis V, C Gasparini, Tosi P (1992) Determination of the macroseismic field by means of trend and multivariate analysis of questionnaire data. Bull Seism Soc Am 82:1206-1222.
DPC S4 Project. (2005) http://earthquake.rm.ingv.it
Gasperini P (2001) The Attenuation of Seismic Intensity in Italy: A Bilinear Shape Indicates the Dominance of Deep Phases at Epicentral Distances Longer than 45 km. Bull Seism Soc Am 91:826-841.
Gilles S, Musson RMW, Bossu R, Wald DJ, Quitoriano V (2008) A comparison of EMS and MMI macroseismic intensity assignments from online questionnaires. Seism Res Lett 79:,321.
Grünthal G (1998) European Macroseismic Scale 1998 (EMS-98). Cahiers du Centre Européen de Géodynamique et de Séismologie Luxembourg, 15, 1-99.
Kalman RE, (1960) A New approach to liner filtering and prediction problems. Transactions of the ASME- Journal of Basic Engineering 82 (Series D):35-45.
Marcelli I, Montecchi A (1962) Contributi per uno studio della sismicità dell'Italia. Annali di Geofisica 15:159.
Molin D (1995) Considerations on the assessment of macroseismic intensity. Annali di Geofisica, 38:805-810.
Molin D, Bernardini F, Camassi R, Caracciolo CH, Castelli V, Ercolani E, Postpischl L (2008) Materiali per un catalogo dei terremoti italiani: revisione della sismicità minore del territorio nazionale. Quaderni di geofisica, 57:1-75.
Musson RMW (2007). Macroseismic effects of the 2007 Cape St Vincent earthquake from the EMSC online questionnaire, CSEM/EMSC Newsletter, No 22, pp30-31.
QUEST (2009). http://www.ingv.it/real-time-monitoring/quest
Scognamiglio L, Tinti E, Michelini A, Dreger D, Cirella A, Cocco M, Mazza S, Piatanesi A.
Fast Determination of Moment Tensors and Rupture History: Application to the April 6th 2009, L'Aquila Earthquake. submitted 2009.
Sieberg A (1930) Scala MCS (Mercalli-Cancani-Sieberg). Geologie der Erdbeben, Handbuch der Geophysik 2:552-555.
Tosi P, De Rubeis V, Tertulliani A, Gasparini C (2000) Spatial Patterns of Earthquake Sounds and Seismic Source Geometry. Geoph Res Lett 27:2749–2752.
Wald DJ, Quitoriano V, Dengler LA, Dewey JW (1999) Utilization of the Internet for rapid community intensity maps. Seism. Res Lett,70, 680-697.
Wald DJ, Worden BC, Quitoriano V, Pankow KL (2006) shakemap manual version 1.0 Technical Manual, User's Guide, and Software Guide. http://pubs.usgs.gov/tm/2005/12A01/pdf/508TM12-A1.pdf
Wood H, Neumann F (1931) Modified Mercalli Intensity scale of 1931. Bull Seism Soc Am 21:277-283.
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