Unearthing earthquakes and their tsunamis using multiple proxies: the 22 June 1932 event and a probable fourteenth-century predecessor on the Pacific coast of Mexico

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dc.contributor.authorRamírez-Herrera, MTen_AU
dc.contributor.authorCorona, Nen_AU
dc.contributor.authorLagos, Men_AU
dc.contributor.authorČerný, Jen_AU
dc.contributor.authorGoguitchaichvili, Aen_AU
dc.contributor.authorGoff, JRen_AU
dc.contributor.authorChagué-Goff, Cen_AU
dc.contributor.authorMachain-Castillo, MLen_AU
dc.contributor.authorZawadzki, Aen_AU
dc.contributor.authorJacobsen, GEen_AU
dc.contributor.authorCurranza-Edwards, Aen_AU
dc.contributor.authorLoranzo, Sen_AU
dc.contributor.authorBelcher, Len_AU
dc.date.accessioned2016-10-19T04:50:39Zen_AU
dc.date.available2016-10-19T04:50:39Zen_AU
dc.date.issued2014-08-26en_AU
dc.date.statistics2016-10-10en_AU
dc.description.abstractTsunami deposits have been widely studied in temperate latitudes, but the intrinsic difficulties associated with tropical coastal environments, and the intensity of bioturbation in these habitats, limit the possibilities of analysing these formations. Here, we investigate the deposits on the Colima coast of Mexico, which overlies the subducting Rivera and Cocos Plates, in order to reconstruct the tsunami inundation history and related hazard. We developed a multi-proxy study aimed to recognize and date historical and palaeotsunami deposits, including historical data on the effects of a known tsunami, geomorphological mapping, stratigraphic, grain size, organic matter content, diatoms, geochemical composition, magnetic susceptibility, and anisotropy of magnetic susceptibility, together with radiometric dating (210Pb and 14C). We identified two probable tsunami deposits at Palo Verde estuary including a historical event associated with the Mw 6.9 earthquake on 22 June 1932 and a palaeotsunami most likely generated by a similar event in the fourteenth century. This work shows that it is possible to identify both historical and palaeotsunamis in the tropical environment of Mexico’s Pacific coast. These data will serve to enhance our understanding of tsunami deposits in tropical environments and of the regional tsunami hazard.emperate latitudes, but the intrinsic difficulties associated with tropical coastal environments, and the intensity of bioturbation in these habitats, limit the possibilities of analysing these formations. Here, we investigate the deposits on the Colima coast of Mexico, which overlies the subducting Rivera and Cocos Plates, in order to reconstruct the tsunami inundation history and related hazard. We developed a multi-proxy study aimed to recognize and date historical and palaeotsunami deposits, including historical data on the effects of a known tsunami, geomorphological mapping, stratigraphic, grain size, organic matter content, diatoms, geochemical composition, magnetic susceptibility, and anisotropy of magnetic susceptibility, together with radiometric dating (210Pb and 14C). We identified two probable tsunami deposits at Palo Verde estuary including a historical event associated with the Mw 6.9 earthquake on 22 June 1932 and a palaeotsunami most likely generated by a similar event in the fourteenth century. This work shows that it is possible to identify both historical and palaeotsunamis in the tropical environment of Mexico’s Pacific coast. These data will serve to enhance our understanding of tsunami deposits in tropical environments and of the regional tsunami hazard. © 2020 Informa UK Limiteden_AU
dc.identifier.citationRamirez-Herrera, M.-T., Corona, N., Lagos, M., Černý, J., Goguitchaichvili, A., Goff, J., Chagué-Goff, C., Machain, M. L., Zawadzki, A., Jacobsen, G., Curranza-Edwards, A., Loranzo, S., & Blecher, L. (2014). Unearthing earthquakes and their tsunamis using multiple proxies: the 22 June 1932 event and a probable fourteenth-century predecessor on the Pacific coast of Mexico. International Geology Review, 56(13), 1584-1601. doi:10.1080/00206814.2014.951977en_AU
dc.identifier.govdoc7367en_AU
dc.identifier.issn1938-2839en_AU
dc.identifier.issue13en_AU
dc.identifier.journaltitleInternational Geology Reviewen_AU
dc.identifier.pagination1584-1601en_AU
dc.identifier.urihttps://doi.org/10.1080/00206814.2014.951977en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/7803en_AU
dc.identifier.volume56en_AU
dc.language.isoenen_AU
dc.publisherTaylor Francis Onlineen_AU
dc.subjectTsunamisen_AU
dc.subjectTemperature rangeen_AU
dc.subjectMexicoen_AU
dc.subjectAnisotropyen_AU
dc.subjectShoresen_AU
dc.subjectDataen_AU
dc.titleUnearthing earthquakes and their tsunamis using multiple proxies: the 22 June 1932 event and a probable fourteenth-century predecessor on the Pacific coast of Mexicoen_AU
dc.typeJournal Articleen_AU
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