Historic and ancient tsunamis uncovered on the Jalisco-Colima Pacific coast, the Mexican subduction zone

Ramírez‐Herrera, María Teresa; Bógalo, María Felicidad; Černý, Jan; Goguitchaichvili, Avto; Corona, Néstor; Machain, María Luisa; Carranza‐Edwards, Arturo; Sosa, Susana

doi:10.1016/j.geomorph.2016.02.011

Cited by 15 publications

(15 citation statements)

References 79 publications

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“…Regarding the former first distinctive characteristic, χ, SIRM, M s , and ARM values in the soil and PV1 unit are more than 20 times higher than those obtained in other sedimentary deposits at the Mexican Pacific coast that include tsunamigenic units [ Černý et al ., ; Ramírez‐Herrera et al ., ]. This higher concentration of magnetic minerals in the Palo Verde site is attributed to contribution of local volcanic material.…”

Section: Discussionmentioning

confidence: 89%

“…Since 2010, magnetic parameters such as magnetic susceptibility and anisotropy of magnetic susceptibility (AMS) have proved highly resolving in tsunami deposit research [ Font et al ., ; Wassmer et al ., ]. So far, several studies have applied these techniques in environments in which tsunami or paleotsunami deposits are present [ Ramírez‐Herrera et al ., ; Cuven et al ., ; Font et al ., ; Goguitchaichvili et al ., ; Schneider et al ., ; Černý et al ., ; Kain et al ., ; Wassmer and Gomez , ; Wassmer et al ., ].…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, some of these studies have also included more detailed magnetic measurements, strengthening the identification, and characterization of tsunamigenic deposits in stratigraphic records [ Font et al ., ; Goguitchaichvili et al ., ; Veerasingam et al ., ; Černý et al ., ; Ramírez‐Herrera et al ., ], and providing useful proxies that reinforce the information supplied by the tsunamigenic signature detected by more traditional methods (stratigraphical, geomorphological, sedimentological, geochemical, microfossil, palynological, mineralogical, and archaeological) [e.g., Ramírez‐Herrera et al ., ; Shanmugam , ; Spiske et al ., ]. The basis for the use of magnetic properties as an environmental assessment tool is rooted on the principle that magnetic properties are sensitive to the mineralogy, concentration, and grain‐size distribution of magnetic particles, which can be altered by geology, transport, sorting, and postdeposition processes.…”

Section: Introductionmentioning

confidence: 99%

“…Several studies were already carried out in tsunamigenic deposits at Mexican Pacific coast, which proved the effectiveness of environmental magnetic techniques for improving the identification of the tsunami‐induced deposits [ Goguitchaichvili et al ., ; Černý et al ., ; Ramírez‐Herrera et al ., ]. The identification and characterization of the magnetic minerals in the tsunamigenic units helped to solve questions about the sediment provenance and the energy of the events.…”

Section: Introductionmentioning

confidence: 99%

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Magnetic signature of the 22June 1932 tsunami deposits (Jalisco,MexicanPacific coast)

Bógalo

Ramírez‐Herrera

Goguitchaichvili

et al. 2017

Geochem Geophys Geosyst

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Recent studies have demonstrated that rock‐magnetic analysis may provide additional information to distinguish and characterize extreme marine inundation events such as tsunamis. Rock‐magnetic proxies reinforce and improve the environmental evidences supplied by other methods, adding some decisive clues for the interpretation of the origin and genesis of the sedimentary deposits. Here we report rock‐magnetic, XRD, and SEM microscopy results obtained in the Palo Verde estuary (Colima Pacific coast, Mexico) in order to enhance the tools for identification and reconstruction of two tsunami‐induced deposits. The sedimentary sequence includes two sand units, a tsunami deposit (PV1) associated with the 22 June 1932 tsunami and a deeper sandy layer (PV2) related to a possible paleotsunami that occurred around 1300 C.E. Both sandy units are topped by finer grained units. Magnetic properties exhibit a significant correlation with the stratigraphy. High susceptibility (χ) and high saturation isothermal remanence (SIRM) values typical of high concentrations of (titano)magnetite are a distinctive feature of the most recent sandy tsunamigenic unit PV1 and the overlaying soil. The lower sandy tsunamigenic unit PV2 shows significantly lower χ and SIRM values, indicating lower concentration of (titano)magnetite in this unit and the overlaying clayey‐silt unit. The latter also shows a higher coercivity component associated with (titano)hematite. Magnetic grain‐size differences are also observed between PV1 and PV2 suggesting differences in hydraulic conditions at the time of deposition. The bulk mineralogical composition and sediment texture of these units also support the hypothesis of different provenances for each tsunamigenic unit as inferred from magnetic properties.

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Section: Discussionmentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Magnetic signature of the 22June 1932 tsunami deposits (Jalisco,MexicanPacific coast)

Bógalo

Ramírez‐Herrera

Goguitchaichvili

et al. 2017

Geochem Geophys Geosyst

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“…Lagos, 2000;Cisternas et al, 2005;Reinhardt et al, 2010). Poco a poco está surgiendo en Ecuador y México (Chunga y Quiñónez, 2013;Chunga and Toulkeridis, 2014;Contreras-López, 2014;Ramírez-Herrera, 2011;, 2016, como también en regiones del oeste del Pacífico sur en las que se han encontrado evidencias de sismos tsunamigénicos suramericanos trans-oceánicos (e.g. Borrero and Goring, 2015).…”

Section: Intermareal Estuarios Mar Abiertounclassified

Marco Conceptual Para Investigaciones Tsunamigénicas: Caso Litoral Pacífico Colombiano

Velasco

López

2016

revbol

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Forma de citar:Velasco, E.R., y López, G.I. 2016. Marco conceptual para investigaciones tsunamigénicas: caso litoral Pacífico colombiano. Boletín de Geología, 38(4): 79-106. RESUMENA nivel histórico, la Costa Pacífica Colombiana ha presenciado seis tsunamis en los últimos 130 años, de los cuales dos han ocasionado completa destrucción de algunos municipios y provocado víctimas humanas. El presente trabajo pretende dar las bases conceptuales necesarias para abordar investigaciones focalizadas a la caracterización de la amenaza por tsunami, verificar el estado del arte y determinar las necesidades investigativas futuras. Toda adecuada realización de investigaciones en paleo-tsunamis debe ser multi-disciplinaria, y compilar, obtener y analizar información geológica, geomorfológica, biológica, antropológica, arqueológica e histórica, lo más detallada posible. Hasta el momento en Colombia, los trabajos realizados en torno a tsunamis han estado enfocados a la cuantificación de la inundación en localidades como Tumaco y Buenaventura. No obstante, a lo largo de la Costa Pacífica Colombiana aún no se ha trabajado en la identificación y caracterización de las fuentes de tsunami, búsqueda y caracterización de evidencias físicas de eventos pasados (e.g. depósitos de paleo-tsunamis), microzonificación sísmica regional, cambios en patrones de vegetación por eventos extremos o el impacto a la dinámica de comunidades indígenas antiguas por tsunamis, entre otros. Para que la gestión del riesgo sea efectiva, deben generarse mapas de amenaza por tsunami que integren todas las herramientas y disciplinas que identifiquen y caractericen dicha amenaza. Por ende, aquí se proponen los pasos a seguir para adecuadas investigaciones tsunamigénicas.Palabras clave: paleo-tsunamis, depósitos de tsunamis, paleo-sismología, Pacífico Colombiano, Zona de Subducción de Nazca. CONCEPTUAL FRAMEWORK FOR TSUNAMIGENIC RESEARCH: COLOMBIAN PACIFIC COAST CASE STUDY ABSTRACTHistorically, the Colombian Pacific Coast has witnessed six tsunamis in the past 130 years, two of which have caused complete community destruction and human loss. The present paper aims to provide a conceptual framework needed to approach palaeo-tsunami research in the area, verifying the state of the art of tsunami hazard characterization and identifying any future investigations. Any acceptable palaeo-tsunami investigation should be multi-disciplinary, and compile, acquire and analyze in much detail, geological, geomorphological, biological, anthropological, archaeological and historical information. So far, the only research done related to tsunami hazard has been for the coastal cities of Tumaco and Buenaventura, and it has been focused on quantification of tsunami flooding. However, no research has yet been done on the identification and characterization of tsunami sources, exploration and characterization of the physical evidence of past events (e.g. palaeo-tsunami deposits), seismic micro-zonation, regional changes in vegetation patterns resulting from extreme events, or changes...

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Palaeotsunamis in the Sino-Pacific region

Goff

Witter

Terry

et al. 2020

Earth-Science Reviews

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Historic and ancient tsunamis uncovered on the Jalisco-Colima Pacific coast, the Mexican subduction zone

Cited by 15 publications

References 79 publications

Magnetic signature of the 22June 1932 tsunami deposits (Jalisco,MexicanPacific coast)

Magnetic signature of the 22June 1932 tsunami deposits (Jalisco,MexicanPacific coast)

Marco Conceptual Para Investigaciones Tsunamigénicas: Caso Litoral Pacífico Colombiano

Palaeotsunamis in the Sino-Pacific region

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