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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-23 17:54 |
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Conference: Bucharest University Faculty of Physics 2017 Meeting
Section: Atmosphere and Earth Science; Environment Protection
Title:
Comparison between the automatic and manual interpretation of macroseismic intensities obtained from the online questionnaires
Authors:
Maria ROGOZEA (1), Angela Petruta CONSTANTIN (1), Liviu MANEA (1), Andreita ANGHEL (1), Iren-Adelina MOLDOVAN (1)
Affiliation:
1) NATIONAL INSTITUTE FOR EARTH PHYSICS, CALUGARENI 12, MAGURELE, ILFOV, ROMANIA
E-mail
irenutza_67@yahoo.com
Keywords:
macroseismic intensities, earthquakes, online feedback
Abstract:
The near real time estimation of the macroseismic intensity recently became mandatory for the insurance companies to cover part of the losses and damages that earthquakes might cause to houses, belongings, and other structures. Due to the insurance companies’ requests, a fast estimation of macroseismic intensities is made using online questionnaires and an automated interpretation method. The automatic intensity estimation code from the online feedback proposed by Wald (1999 a and b) and adopted by Ionescu and Dragoicea (2010) for the Romanian earthquakes was used for this study. In the present paper, the procedure was applied for the last three intermediate-depth earthquakes with Mw>5.0 occurred on September 23, 2016, December 27, 2016 and February 8, 2017 in Vrancea area, and felt on the extra-Carpathian. The purpose of this study is to compare the intensities computed with a formula with those values manual estimated, to see how reliable are the fast evaluations and if they could be used as responses for insurance companies.
References:
Ionescu C., Dragoicea M., (2010) Macroseis: a tool for real-time collecting and querying macroseismic data in Romania, Rom. Journ. Phys., Vol. 55, Nos. 7–8, P. 852–861.
Wald D. J., Quitoriano V., Dengler L. A., Dewey J. W., (1999a) Utilization of the Internet for Rapid Community Intensity Maps, Seis. Research Letters., DOI: 10.1785/gssrl.70.6.680.
Wald, D. J., Quitoriano, V., Heaton, T. H., & Kanamori, H. (1999b). Relationships between peak ground acceleration, peak ground velocity, and modified Mercalli intensity in California. Earthquake spectra, 15(3), 557-564
Acknowledgement:
This paper was partially carried out within Nucleu Program, supported by ANCSI, projects no. PN 16 35 01 06, PN 16 35 03 01, PN 16 35 01 09 and the Partnership in Priority Areas Program – PNII, under MEN-UEFISCDI, DARING Project no. 69/2014 and a grant of the Romanian National Authority for Scientific Research and Innovation (ANCSI) - UEFISCDI, project number PN-II-RU-TE-2014-4-0701
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