Deterioration of Israel's Caesarea Maritima's ancient harbor linked to repeated tsunami events identified in geophysical mapping of offshore stratigraphy

Goodman-Tchernov, Beverly; Austin, James A.

doi:10.1016/j.jasrep.2015.06.032

Cited by 12 publications

(10 citation statements)

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“…Significant attention was given to at a site off Caesarea, Israel, in which the shoreline to 30 m water depths was found to provide ample evidence that the near offshore record is an important tsunami deposit archive. Goodman-Tchernov et al [104] and others [105,106] overcame some practical issues of collecting controlled stratigraphic sequences from sandy sequences, through the use of custom-built diver-operated pneumatic coring tools. Run-up distribution along the Japan coast after the 2011 tsunami using MOST and inversion from one, two, and three tsunameter inversion.…”

Section: Other Key Advances Since the 2004 Boxing Day Tsunamimentioning

confidence: 99%

Tsunamis: bridging science, engineering and society

Kânoğlu

Titov

Bernard

et al. 2015

Phil. Trans. R. Soc. A.

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Tsunamis are high-impact, long-duration disasters that in most cases allow for only minutes of warning before impact. Since the 2004 Boxing Day tsunami, there have been significant advancements in warning methodology, pre-disaster preparedness and basic understanding of related phenomena. Yet, the trail of destruction of the 2011 Japan tsunami, broadcast live to a stunned world audience, underscored the difficulties of implementing advances in applied hazard mitigation. We describe state of the art methodologies, standards for warnings and summarize recent advances in basic understanding, and identify cross-disciplinary challenges. The stage is set to bridge science, engineering and society to help build up coastal resilience and reduce losses.

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Section: Other Key Advances Since the 2004 Boxing Day Tsunamimentioning

confidence: 99%

Tsunamis: bridging science, engineering and society

Kânoğlu

Titov

Bernard

et al. 2015

Phil. Trans. R. Soc. A.

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“…Bussert & Aberhan, ; Tamura et al ., ; Riou et al ., ; Smedile et al ., ). Little is known about offshore tsunami deposits, although they have the potential to improve palaeo‐tsunami reconstructions, especially in areas with limited preservation of onshore materials (Goodman‐Tchernov & Austin, ; Tamura et al ., ; Riou et al ., ). Weiss & Bahlburg () stated that offshore tsunami deposition in deep marine environments, well below the wave base of severe storms, is conceptually much more likely to preserve tsunami depositional signatures than in shallow settings.…”

Section: Future Challenges In Tsunami Researchmentioning

confidence: 99%

Tsunami deposits: Present knowledge and future challenges

Costa

Andrade

2020

Sedimentology

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Tsunami deposits are the primary source of information on (past) large tsunami events and thereby are crucial for accurate hazard assessments. Tsunami deposits studies have developed over the last three decades, but this is still a young geoscience discipline. Following the 5th International Tsunami Field Symposium in 2017 an opportunity arose to publish a Special Issue focusing on present knowledge and future research challenges. This paper aims to briefly review current state‐of‐the‐art research, summarizing major findings and gathering relevant works that describe the progress achieved over the last three decades. In this paper the relevance of tsunami deposits, their peculiar sedimentary characteristics and their differentiation from other high energy events are presented. Especially over the last decade an incredibly high number of studies have been published on tsunami deposits, many of which are of a high quality and provide detailed literature reviews. Some of these studies represent the current progress discussed here. Challenges are also introduced, to spur a discussion on future scientific questions that can and should be addressed by tsunami geoscientists. Coupling onshore–offshore records is an area where tsunami geoscience faces some of its major challenges. Moreover, the application of non‐destructive high‐resolution techniques to study the internal structure and composition of tsunami deposits can also provide an opportunity to further examine deposits, and from this derive physical parameters of the forcing mechanism. Another topic is better understanding of the erosional signature of tsunami events and a continuation of the effort to better incorporate age‐estimation methods by developing more accurate dating methodology. Finally, there is also the need for the improvement of empirical, forward and regressive numerical models to better contribute to the characterization of tsunami events.

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“…Although it might be less likely to have significant sedimentary imprints of tsunamis in deeper offshore areas (i.e., mid to outer shelf) [5], the controversial differentiation between tsunami and storm deposits [11] can be neglected when studying sediments beneath the storm wave base [12]. Relatively few studies have focused on analyzing deeper offshore sedimentary records [2,3,8,[13][14][15][16][17][18][19][20][21][22]] and even fewer have involved possible historical/palaeotsunami deposits in such environments [2][3][4]13,17,[22][23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, peaks of different sediment components have been utilized to serve as a tsunami backwash tracer. These range from biogenic components such as terrestrial plant fragments [10], mollusk fragments from the littoral zone [4,8,17,25] and low numbers of foraminifera at the base of tsunami layers [3,20,31] to lithic fragments of continental rocks such as quartz, mica (Illite) [4] and opaque minerals [32]. Another advantage of studying sediment composition is the varying hydrodynamical behavior of the different components attributed to their shape and density, which helps illuminate sedimentation dynamics of tsunami events.…”

Section: Introductionmentioning

confidence: 99%

Exploring Offshore Sediment Evidence of the 1755 CE Tsunami (Faro, Portugal): Implications for the Study of Outer Shelf Tsunami Deposits

et al. 2020

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Outer shelf sedimentary records are promising for determining the recurrence intervals of tsunamis. However, compared to onshore deposits, offshore deposits are more difficult to access, and so far, studies of outer shelf tsunami deposits are scarce. Here, an example of studying these deposits is presented to infer implications for tsunami-related signatures in similar environments and potentially contribute to pre-historic tsunami event detections. A multidisciplinary approach was performed to detect the sedimentary imprints left by the 1755 CE tsunami in two cores, located in the southern Portuguese continental shelf at water depths of 58 and 91 m. Age models based on 14C and 210Pbxs allowed a probable correspondence with the 1755 CE tsunami event. A multi-proxy approach, including sand composition, grain-size, inorganic geochemistry, magnetic susceptibility, and microtextural features on quartz grain surfaces, yielded evidence for a tsunami depositional signature, although only a subtle terrestrial signal is present. A low contribution of terrestrial material to outer shelf tsunami deposits calls for methodologies that reveal sedimentary structures linked to tsunami event hydrodynamics. Finally, a change in general sedimentation after the tsunami event might have influenced the signature of the 1755 CE tsunami in the outer shelf environment.

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Deterioration of Israel's Caesarea Maritima's ancient harbor linked to repeated tsunami events identified in geophysical mapping of offshore stratigraphy

Cited by 12 publications

References 65 publications

Tsunamis: bridging science, engineering and society

Tsunamis: bridging science, engineering and society

Tsunami deposits: Present knowledge and future challenges

Exploring Offshore Sediment Evidence of the 1755 CE Tsunami (Faro, Portugal): Implications for the Study of Outer Shelf Tsunami Deposits

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