Tsunamis as Paleoseismic Indicators

Reicherter, Klaus

doi:10.1007/978-3-642-36197-5_26-1

Cited by 2 publications

(1 citation statement)

References 21 publications

(31 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is based on the assessment of a large number of objective criteria, grouped into six categories ((i)physical quantities such as tsunami wave height, flow depth and inundation extent, (ii) impact on humans, (iii) impact on mobile objects such as boats and cars, (iv) impact on infrastructure, (v) environmental effects and (vi) impact on structures) [34] (Figure 3). This scale works well for modern events where large amounts of data are available [34,66], while Reicherter [67] argued that such scales are of limited use in paleotsunami studies due to the small datasets, the absence of instrumental records and the difficulties in obtaining the minimum necessary parameters for intensity evaluation and related assignments. Until the present, the ITIS-2012 scale has been applied for highlighting and quantifying the impact of recent earthquake-triggered tsunamis on the coastal zones of earthquake-affected areas in Japan [68], New Zealand [66], Greece [69] and Indonesia [70].…”

Section: Geological Settingmentioning

confidence: 99%

Earthquake-Induced Tsunamis in Western Greece (Ionian Sea and Western and Southern Peloponnese): Use of Tsunami Quantities, Impact and ITIS-2012 Intensities for Highlighting Susceptible Areas

2023

View full text Add to dashboard Cite

Taking into account recent studies on the tsunamigenic potential of strike-slip faults, it is concluded that there is a need to reassess their near-source tsunami hazard and risk. One of the areas which needs reassessment is Western Greece, especially the Ionian Islands and the western coastal Peloponnese, where major seismogenic strike-slip structures occur. In this context, an extensive review of the available literature is conducted, including not only earthquake and tsunami catalogues but also tsunamis’ imprints on the stratigraphic record. It is concluded that the Ionian Islands and the western Peloponnese have a rich history of tsunamis since 6000 BC, revealing that they are subjected to high tsunami hazard. In addition to the teletsunami effects of distant earthquakes, there are also local tsunamis with smaller physical quantities and slighter coastal impact that are attributed mainly to local offshore faults and earthquake-triggered landslides. The fact that no destructive local tsunamis have been detected so far does not exclude the possibility of future triggering. In order to identify areas susceptible to future tsunami impact, we extract tsunami quantities and coastal impact data from available sources and we apply the Integrated Tsunami Intensity Scale 2012 (ITIS-2012) for all the events with available and adequate information. The highly susceptible areas comprise straits, funnel-shaped bays and extensive coastal areas exposed to major strike-slip seismogenic sources in the Ionian Sea and the western Hellenic Trench. Based on the aforementioned information, the inclusion of the Ionian Sea in the tsunamigenic zones of Greece is strongly recommended.

show abstract

Section: Geological Settingmentioning

confidence: 99%

Earthquake-Induced Tsunamis in Western Greece (Ionian Sea and Western and Southern Peloponnese): Use of Tsunami Quantities, Impact and ITIS-2012 Intensities for Highlighting Susceptible Areas

2023

View full text Add to dashboard Cite

show abstract

Imbricated Coastal Boulder Deposits are Formed by Storm Waves, and Can Preserve a Long-Term Storminess Record

Cox

O’Boyle

Cytrynbaum

2019

Sci Rep

View full text Add to dashboard Cite

Coastal boulder deposits (CBD) are archives of extreme wave events. They are emplaced well above high tide, and may include megagravel clasts weighing tens or even hundreds of tonnes. But do they represent storms or tsunami? Many are interpreted as tsunami deposits based simply on clast size and inferences about transport, despite the fact that there are no direct observations documenting formation of these inbricated boulder clusters and ridges. In this study, we use force-balanced, dynamically scaled wave-tank experiments to model storm wave interactions with boulders, and show that storm waves can produce all the features of imbricated CBD. This means that CBD, even when containing megagravel, cannot be used as de facto tsunami indicators. On the contrary, CBD should be evaluated for inclusion in long-term storminess analysis.

show abstract

Tsunamis as Paleoseismic Indicators

Abstract: SynonymsHigh

Cited by 2 publications

References 21 publications

Earthquake-Induced Tsunamis in Western Greece (Ionian Sea and Western and Southern Peloponnese): Use of Tsunami Quantities, Impact and ITIS-2012 Intensities for Highlighting Susceptible Areas

Earthquake-Induced Tsunamis in Western Greece (Ionian Sea and Western and Southern Peloponnese): Use of Tsunami Quantities, Impact and ITIS-2012 Intensities for Highlighting Susceptible Areas

Imbricated Coastal Boulder Deposits are Formed by Storm Waves, and Can Preserve a Long-Term Storminess Record

Contact Info

Product

Resources

About