Citizen seismology helps decipher the 2021 Haiti earthquake-Reference-Cited by-同舟云学术

Citizen seismology helps decipher the 2021 Haiti earthquake

Published:2022-04-15 Issue:6590 Volume:376 Page:283-287
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Calais E.¹²³⁴^ORCID,Symithe S.³⁵,Monfret T.²³⁶^ORCID,Delouis B.²³^ORCID,Lomax A.⁷^ORCID,Courboulex F.²³^ORCID,Ampuero J. P.²³^ORCID,Lara P. E.²⁸^ORCID,Bletery Q.²³^ORCID,Chèze J.²³^ORCID,Peix F.²³,Deschamps A.²³,de Lépinay B.²³^ORCID,Raimbault B.¹^ORCID,Jolivet R.¹⁴^ORCID,Paul S.²³⁵,St Fleur S.³⁵,Boisson D.³⁵^ORCID,Fukushima Y.⁹^ORCID,Duputel Z.¹⁰^ORCID,Xu L.¹¹^ORCID,Meng L.¹¹

Affiliation:

1. Département de Géosciences, École Normale Supérieure, CNRS UMR 8538, PSL Université, Paris, France.

2. Université Côte d’Azur, Institut de Recherche pour le Développement, Centre National de la Recherche Scientifique, Observatoire de la Côte d’Azur, Géoazur, Valbonne, France.

3. CARIBACT Joint Research Laboratory, Université d’État d’Haïti, Université Côte d’Azur, Institut de Recherche pour le Développement, Port-au-Prince, Haïti.

4. Institut Universitaire de France, Paris, France.

5. URGéo, Faculté des Sciences, Université d’État d’Haïti, Port-au-Prince, Haïti.

6. Barcelona Center for Subsurface Imaging, Institut de Ciències del Mar (ICM), CSIC, Barcelona, Spain.

7. ALomax Scientific, Mouans Sartoux, France.

8. Instituto Geofísico del Perú, Lima, Perú.

9. International Research Institute of Disaster Science, Tohoku University, Sendai, Japan.

10. Observatoire Volcanologique du Piton de la Fournaise, Université de Paris, Institut de Physique du Globe de Paris, CNRS, Paris, France.

11. Department of Earth, Planetary and Space Sciences, University of California, Los Angeles, CA, USA.

Abstract

On 14 August 2021, the moment magnitude ( M w ) 7.2 Nippes earthquake in Haiti occurred within the same fault zone as its devastating 2010 M w 7.0 predecessor, but struck the country when field access was limited by insecurity and conventional seismometers from the national network were inoperative. A network of citizen seismometers installed in 2019 provided near-field data critical to rapidly understand the mechanism of the mainshock and monitor its aftershock sequence. Their real-time data defined two aftershock clusters that coincide with two areas of coseismic slip derived from inversions of conventional seismological and geodetic data. Machine learning applied to data from the citizen seismometer closest to the mainshock allows us to forecast aftershocks as accurately as with the network-derived catalog. This shows the utility of citizen science contributing to our understanding of a major earthquake.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference99 articles.

1. UN Office for the Coordination of Humanitarian Affairs “Haïti: Tremblement de terre Rapport de Situation No. 2 Au 26 Août 2021” (OCHA 2021); https://reliefweb.int/report/haiti/ha-ti-tremblement-de-terre-rapport-de-situation-no-2-au-26-ao-t-2021.

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