Publication: Presencia de bloques asociados a un evento de oleaje extremo en el Mediterráneo occidental (Cabo Cope, Murcia, España): posible evidencia de un tsunami
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Date
2023-03-20
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info:eu-repo/semantics/openAccess
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Springer Nature
Abstract
La región de Murcia, en el sureste de la Península Ibérica, registra una actividad tectónica moderada, registrándose terremotos de hasta 6,2-6,9 Mw. Aún con una actividad sísmica de esta magnitud no existen registros geológicos ni instrumentales de tsunamis que hayan afectado a la zona. La presencia en Cabo Cope, Murcia, de un cordón litoral de bloques imbricados de tamaño métrico (compuestos por rocas del Pleistoceno superior) que alcanzan una altura de hasta 4 m sobre el nivel del mar, indica que en la zona se ha producido un evento de oleaje extremo durante el Holoceno. Mediante el estudio de las condiciones de oleaje generadas durante grandes tormentas en esta zona, se infiere que este cordón litoral de bloques parece haber sido causado por oleaje extremo asociado a un evento sísmico, como un tsunami.
The region of Murcia, in the southeast of the Iberian Peninsula, experiences moderate tectonic activity, with earthquakes of up to 6.2–6.9 Mw recorded. Even with seismic activity of this scale there is no geological or instrumental record of tsunamis affecting the area. The presence at Cape Cope, Murcia of a ridge of metre-sized imbricated boulders (comprised of Upper Pleistocene sediments) reaching a height of up to 4 m above sea level, indicates that there has been an extreme wave event in the area during the Holocene. Through studying the wave conditions generated during large storms in this area, the boulder ridges appear to have been caused by extreme waves associated with a seismic event, as a tsunami.
The region of Murcia, in the southeast of the Iberian Peninsula, experiences moderate tectonic activity, with earthquakes of up to 6.2–6.9 Mw recorded. Even with seismic activity of this scale there is no geological or instrumental record of tsunamis affecting the area. The presence at Cape Cope, Murcia of a ridge of metre-sized imbricated boulders (comprised of Upper Pleistocene sediments) reaching a height of up to 4 m above sea level, indicates that there has been an extreme wave event in the area during the Holocene. Through studying the wave conditions generated during large storms in this area, the boulder ridges appear to have been caused by extreme waves associated with a seismic event, as a tsunami.
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Extreme wave event, Boulders transport, Tsunami, Geological record, Evento de oleaje extremo, Transporte de bloques, Registro geológico
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Facultad de Ciencias
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Ciencias Analíticas