Macroseismic investigation with data collected through web‐based questionnaires is today routinely applied by most important seismological institutions, such as the U.S. Geological Survey (http://earthquake.usgs.gov/earthquakes/dyfi/; last accessed December 2014), British Geological Survey (http://www.earthquakes.bgs.ac.uk/questionnaire/EqQuestIntro.html; last accessed December 2014), European‐Mediterranean Seismological Centre (http://www.emsc-csem.org/Earthquake/Contribute/choose_earthquake.php?lang=en; last accessed December 2014), Schweizerische Erdbebendienst (http://www.seismo.ethz.ch/eq/detected/eq_form/index_EN; last accessed December 2014), Bureau Central Sismologique Français (http://www.seisme.prd.fr/english.php; last accessed December 2014), and the New Zealand GeoNet project (http://www.geonet.org.nz/quakes/; last accessed December 2014). The wide diffusion of Internet and the citizen collaboration (crowdsourcing) allow documentation of information on seismic effects...

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