Publication Date:
2020-10-13
Description:
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
Description:
EU FP6 NEST Pathfinder programme TRIGS under contract NEST-2005-PATH-COM-043386
INGV-DPC 2007-2009 S1 and S3 Projects
Description:
Published
Description:
1.11. TTC - Osservazioni e monitoraggio macrosismico del territorio nazionale
Description:
open
Keywords:
Earthquakes
;
Macroseismic Intensity
;
Questionnaire
;
Macroseismic effects
;
04. Solid Earth::04.06. Seismology::04.06.06. Surveys, measurements, and monitoring
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
report
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