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What makes people respond to "did you feel it?"

Sum Mak and Danijel Schorlemmer
What makes people respond to "did you feel it?"
Seismological Research Letters (February 2016) 87 (1): 119-131


The data compilation of "Did You Feel It?" (DYFI) and other similar Internet-based macroseismic intensity databases relies on the voluntary responses from Internet users. A region of no responses could mean no perceivable ground shakings or no volunteers submitting responses. We examined the earthquake and socioeconomic conditions that affected the number of DYFI responses received for a region. A resulting statistical model described the expected number of DYFI responses received for an earthquake. We also showed that residents in California and the central and eastern United States followed similar behavior in responding to DYFI, despite the vast difference in seismicity for the two regions. This study allows for a quantitative definition of completeness for DYFI data. The presented modeling technique is applicable to other Internet-based macroseismic intensity databases.

ISSN: 0895-0695
EISSN: 1938-2057
Serial Title: Seismological Research Letters
Serial Volume: 87
Serial Issue: 1
Title: What makes people respond to "did you feel it?"
Affiliation: German Research Centre for Geosciences, Helmholtz Centre Potsdam, Potsdam, Germany
Pages: 119-131
Published: 201602
Text Language: English
Publisher: Seismological Society of America, El Cerrito, CA, United States
References: 24
Accession Number: 2016-025742
Categories: Seismology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 3 tables, geol. sketch maps
N32°30'00" - N42°00'00", W124°30'00" - W114°15'00"
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Abstract, Copyright, Seismological Society of America. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 201613
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