Proceedings of the 12th International INQUA meeting on paleoseismology, active tectonic and archaeoseismology

C O N C L U S I O N The data gathered in a week is obviously incomplete to intend being accurate on the description and analysis of the geological effects resulting from the M7.5 Noto Peninsula earthquake. Multiple Japanese teams collected, collect, and will collect datasets which will partially cover the gaps and allow to proceed. However, it is worth to mention that geomorphological and morphoclimatic contexts are not favourable to reveal and preserve those effects because of the dense canopy, the steepness of the relief, and the locally intense runoff. In addition, the InSAR data did not help much, because almost entirely decorrelated in the area of interest. It is then anticipable that the effect catalogue will remain incomplete. Anyway, the region experienced a large panel of environmental effects, including tsunami, landsliding, liquefaction, and even surface rupture of probable secondary and/or triggered nature far from the offshore surface rupture (Nurminen et al., 2022), with large displacements over segments that could be covered over reduced distances (in the valley floors, and rice paddies where canopy is reduced). Surface rupture pattern could be compared to geodetic field (GNSS) if available, to check and understand the causative process, and eventually maybe yield information on the source. Liquefaction pattern could be faced to ground shaking data (from the knet, kicknet seismic networks) and geotechnical information to characterize this hazard in the region. Landsliding seems to have occurred on prone lithologies and slope conditions; however the cluster pattern needs to be understood. Finally, extensive work will be needed to compile the datasets to provide a relevant assessment of ESI Scale intensity based on EEE (e.g. Azuma et al., Kumamoto). A C K N O W L E D G E M E N T S Field survey costs were supported by IRSN (SB, AL, MM) and AIST (TA). R E F E R E N C E S AIST (2024). Active fault database of Japan. https: //gbank.gsj .jp/ activefault/search Gomez (2024). The January 1 st 2024 Noto Peninsula Co- seismic Landslides Hazards: Preliminary Results. DOI : 10.21203 /rs.3.rs -3904468/v1. Pre- print available at https: //www. researchsquare.com/ Heidarzadeh et al. (2024). Field surveys of tsunami runup and damage following the January 2024 Mw 7.5 Noto (Japan sea) tsunamigenic earthquake. Ocean Engineering. DOI : 10.1016/j . oceaneng.2024.118140 Japan Coast Guard (2024). Evidence of offshore fault. https: //www.kaiho.mlit.go.jp/ info/kouhou/post-1069.html GSI (2024). Crustal deformation associated with the Noto Peninsula Earthquake revealed by InSAR. https: //www.gsi.go.jp/ uchusokuchi/20240101noto_insar. html Nurminen et al. (2022). SURE 2.0 – New release of the worldwide database of surface ruptures for fault displacement hazard analyses. Scientific Data. DOI : 10.1038/s41597-022-01835-z Ota and Hirakawa (1979). Marine terraces and their deformation in Noto Peninsula, Japan Sea side of central Japan. Geographical Review of Japan. Available at https://www.jstage.jst.go.jp/article/ grj1925/52/4/52_4_16 9/_pdf

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