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      A Worldwide and Unified Database of Surface Ruptures (SURE) for Fault Displacement Hazard Analyses

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          Fault displacement hazard assessment is based on empirical relationships that are established using historic earthquake fault ruptures. These relationships evaluate the likelihood of coseismic surface slip considering on‐fault and off‐fault ruptures, for given earthquake magnitude and distance to fault. Moreover, they allow predicting the amount of fault slip at and close to the active fault of concern. Applications of this approach include land use planning, structural design of infrastructure, and critical facilities located on or close to an active fault.

          To date, the current equations are based on sparsely populated datasets, including a limited number of pre‐2000 events. In 2015, an international effort started to constitute a worldwide and unified fault displacement database (SUrface Ruptures due to Earthquakes [SURE]) to improve further hazard estimations. After two workshops, it was decided to unify the existing datasets (field‐based slip measurements) to incorporate recent and future cases, and to include new parameters relevant to properly describe the rupture.

          This contribution presents the status of the SURE database and delineates some perspectives to improve the surface‐faulting assessment. Original data have been compiled and adapted to the structure. The database encompasses 45 earthquakes from magnitude 5–7.9, with more than 15,000 coseismic surface deformation observations (including slip measurements) and 56,000 of rupture segments. Twenty earthquake cases are from Japan, 15 from United States, two from Mexico, Italy, and New Zealand, one from Kyrgystan, Ecuador, Turkey, and Argentina. Twenty‐four earthquakes are strike‐slip faulting events, 11 are normal or normal oblique, and 10 are reverse faulting.

          To pursue the momentum, the initial and common implementation effort needs to be continued and coordinated, and the maintenance and longevity of the database must be guaranteed. This effort must remain based on a large and open community of earthquake geologists to create a free and open access database.

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          Most cited references 58

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            Displacement and Geometrical Characteristics of Earthquake Surface Ruptures: Issues and Implications for Seismic-Hazard Analysis and the Process of Earthquake Rupture

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              Superficial simplicity of the 2010 El Mayor–Cucapah earthquake of Baja California in Mexico


                Author and article information

                Seismological Research Letters
                Seismological Society of America (SSA)
                October 16 2019
                October 16 2019
                [1 ]PSE‐ENV Seismic Hazard Division, Institut de Radioprotection et Sûreté Nucléaire, Rue de la Redoute, 92260 Fontenay‐aux‐Roses, France,
                [2 ]Dipartamento DiSPuTer, Universita' G. d'Annunzio di Chieti‐Pescara, Via dei Vestini 31, 66100 Chieti Scalo, Italy,
                [3 ]The B. John Garrick Institute for the Risk Sciences, University of California Los Angeles (UCLA), Engineering VI 5th Floor, 404 Westwood Plaza, Los Angeles, California 90095 U.S.A.,
                [4 ]California Geological Survey, 1900 South Norfolk Street, Suite 300, San Mateo, California 94403 U.S.A.,
                [5 ]Civil and Architectural Engineering Management Office, Engineering Strategy Unit, Tokyo Electric Power Company (TEPCO) Holdings, Inc., 1‐1‐3 Uchisaiwai‐cho, Chiyoda‐ku, Tokyo 100‐8560, Japan,
                [6 ]Research Institute of Earthquake & Volcano Geology, National Institute of Advanced Industrial Science and Technology, Site Central 7, 1‐1‐1, Higashi, Tsukuba 3058567, Japan,
                [7 ]Laboratoire de Tectonique et Mécanique de la Lithosphère, Institut de Physique du Globe de Paris, 1 Rue Jussieu, 75005 Paris, France,
                [8 ]Istituto Nazionale Geofisica Vulcanologia, Sezione Roma 1, Via di Vigna Murata 605, 00143 Rome, Italy,
                [9 ]Departamento de Geología, Universidad Nacional de San Luis, E. de los Andes 950, 5700 San Luis, Argentina,
                [10 ]Dipartimento per il Servizio Geologico d'Italia, Istituto Superiore per la Protezione e la Ricerca Ambientale, Via Vitaliano Brancati 48, 00144 Rome, Italy,
                [11 ]Now at Université de la Sorbonne, Boulevard Saint Michel, 75005 Paris, France.
                [12 ]Geo‐Haz Consulting, Inc., 600 East Galena Avenue, Crestone, Colorado 81131 U.S.A.,
                [13 ]Department of Geography, Faculty of Letters, Hiroshima University, 1‐3‐2 Kagamiyama, Higashi‐Hiroshima City, Hiroshima 739‐8511, Japan,
                [14 ]Earth Structure and Processes Department, GNS Science, 1 Fairway Drive, 5010 Lower Hutt, New Zealand,
                © 2019


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