Assessing the impact of 1498 Meio earthquake and tsunami along the Enshu-nada coast, central Japan using coastal geology

Fujiwara, Osamu; Ono, Eisuke; Yata, Toshifumi; Sato, Yoshiki; Heyvaert, Vanessa

doi:10.1016/j.quaint.2012.12.009

Cited by 20 publications

(9 citation statements)

References 19 publications

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“…Inundation of the Enshu-nada coastline by the Meiō tsunami has already been demonstrated (e.g. Fujiwara et al, 2013), making it a reasonable assumption to find some evidence of this event preserved in the Shirasuka lowlands stratigraphy.…”

Section: Integration With Historical Records and Previous Studiesmentioning

confidence: 91%

Single-grain feldspar luminescence chronology of historical extreme wave event deposits recorded in a coastal lowland, Pacific coast of central Japan

Riedesel

Brill

Roberts

et al. 2018

Quaternary Geochronology

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The Shirasuka lowlands, located on the Enshu-nada coast of central Japan, record evidence for numerous extreme wave events. Here we test the applicability of using the luminescence signal from feldspars to date these young (< 1000 a) extreme wave event deposits. The signal used for dating is the IRSL signal (measured at 50°C) as part of a post-IR IRSL 130 procedure. We demonstrate that this IRSL 50 (pre-IR 130) signal results in reliable ages when corrected for fading, and the post-IR IRSL 130 stimulation functions as an optical wash for both the natural/ regenerated luminescence signal (L x) and the test dose signal (T x), lowering the recuperation and removing any remaining charge from previous steps in the protocol. The single grain IRSL 50 (pre-IR 130) ages generated cover the historical record of the past 800 years and correlate well with past earthquakes and tsunamis in 1361 CE, 1498 CE and 1605 CE. Another identified tsunami deposit may correlate with the 1707 CE earthquake and tsunami. A slope failure deposit, probably caused by the earthquake in 1944 CE, is also identified. This study demonstrates that accurate ages can be determined for the young, extreme wave events at this site using the luminescence signal from feldspars.

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Section: Integration With Historical Records and Previous Studiesmentioning

confidence: 91%

Single-grain feldspar luminescence chronology of historical extreme wave event deposits recorded in a coastal lowland, Pacific coast of central Japan

Riedesel

Brill

Roberts

et al. 2018

Quaternary Geochronology

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“…Historical documents record severe damage caused by repeated huge earthquakes generated along the Nankai Trough (e.g., Ishibashi, 1984;Yata, 2009). For example, the AD 1498 Meio earthquake apparently caused profound geomorphological deformation around Lake Hamana (Shizuoka Prefecture, 1996;Yata, 2005;Fujiwara et al, 2013a). Before the Meio earthquake, the Hamana River flowed from the lake to the Enshu-nada Coast.…”

Section: Tectonic Movementsmentioning

confidence: 99%

Late Holocene environmental changes of coastal lagoon inferred from a fossil diatom analysis of sediment core from Lake Hamana, central Japan

Sato

Matsuoka

Okamura

et al. 2016

Quaternary International

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“…The correlation of Sand 3 with the 1498 CE Meiō tsunami reaffirms the findings of Komatsubara et al (2008). Proposed evidence for this tsunami is widespread in the Tōnankai region, including at Shijima (Fujino et al, 2008;Komatsubara and Okamura, 2007) and along the Enshu-nada coastline at Arai (Fujiwara et al, 2013), Lake Hamana (Honda and Kashima, 1997) and Nagaya Moto-Yashiki (Takada et al, 2002). Historical, archaeological and geological records are in agreement, suggesting a rupture of the Tōnankai region (Garrett et al, 2016;Ishibashi, 2004;Sangawa, 2009;Seno, 2012).…”

Section: Earthquake-triggered Mass Movements?mentioning

confidence: 99%

Historical Nankai-Suruga megathrust earthquakes recorded by tsunami and terrestrial mass movement deposits on the Shirasuka coastal lowlands, Shizuoka Prefecture, Japan

et al. 2018

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22 23 Geological investigations of coastal sediment sequences play a key role in verifying earthquake and 24 tsunami characteristics inferred from historical records. In this paper, we present a multi-proxy 25 investigation of a coastal lowland site facing the Nankai-Suruga megathrust and appraise evidence for 26 tsunamis and earthquake-triggered terrestrial mass movements occurring over the last 800 years. 27Combining a high-resolution chronology with X-ray computed tomography and analyses of particle 28 size, diatoms, pollen, non-pollen palynomorphs and aerial photographs, we present the most 29 compelling geological evidence of the 1361 CE Kōan (also known as Shōhei) tsunami reported to date 30 from any site along the megathrust. This finding is consistent with either of two recent hypotheses: a 31 single larger rupture of both the Nankai and Tōnankai regions or two smaller ruptures separated by a 32 few days. Enhancing the site chronology using Bayesian age modelling, we verify evidence for 33 inundation during the 1498 CE Meiō tsunami. While previous investigations identified evidence for 34 historically recorded tsunamis in 1605, 1707 and 1854 CE and a storm surge in 1680 or 1699 CE, we 35 encountered a thick sand layer rather than discrete extreme wave deposits in this interval. The 36 overprinting of evidence highlights the potential for geological records to underestimate the 37 frequency of these events. A terrestrial mass movement also deposited a sand layer at the site; 38 radionuclide dating and aerial photographs provide independent confirmation that this may have 39 been triggered by intense shaking in 1944 CE during the most recent great Nankai-Suruga megathrust 40 earthquake. 41 42 2

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Assessing the impact of 1498 Meio earthquake and tsunami along the Enshu-nada coast, central Japan using coastal geology

Cited by 20 publications

References 19 publications

Single-grain feldspar luminescence chronology of historical extreme wave event deposits recorded in a coastal lowland, Pacific coast of central Japan

Single-grain feldspar luminescence chronology of historical extreme wave event deposits recorded in a coastal lowland, Pacific coast of central Japan

Late Holocene environmental changes of coastal lagoon inferred from a fossil diatom analysis of sediment core from Lake Hamana, central Japan

Historical Nankai-Suruga megathrust earthquakes recorded by tsunami and terrestrial mass movement deposits on the Shirasuka coastal lowlands, Shizuoka Prefecture, Japan

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