5:15 PM - 6:45 PM
[U15-P49] Marine Earth Science Studies on the 2024 Noto Peninsula Earthquake by R/V Hakuho-maru and geoparks around the research area
Keywords:2024 Noto Peninsula Earthquake, Marine Earth Science Studies, Tateyama Kurobe Geopark, Itoigawa UNESCO Global Geopark, Sado Island Geopark
The 2024 Noto Peninsula Earthquake (M7.6) on 1st January, 2024 caused extensive damage in and around the Noto Peninsula. To investigate the impact of earthquakes and tsunamis on the marine environment and marine ecosystem, we conducted a multidisciplinary survey (cruise ID: KH-24-E1) by using the academic research vessel "Hakuho-maru" in the earthquake rupture area offshore the northeast coast of the Noto Peninsula from 4 to 16 March, 2024 (13 days).
Three geoparks are located around the research area; the Tateyama-Kurobe, Itoigawa, and Sado Island geoparks. Among them the Itoigawa geopark is assigned to a UNESCO Global Geopark. The geodynamic evolution of each geopark has been clarified based mainly on land geology. Reconstruction of geohistory should be made by research both on land and under the sea. The marine earth science studies can contribute to providing geodynamic reconstruction with essential data. On the other hand, important tectonic elements such as the Itoigawa-Shizuoka Tectonic Line and Kashiwazaki-Chiba (or Choshi) Tectonic Line recognizable on land must be traced in the marine areas as well. The Tateyama-Kurobe geopark includes marine areas whereas the Itoigawa, and Sado Island geoparks do not. To include marine areas in geopark not only deepens our understandings of geohistory but also contributes to raising our awareness on tsunami hazard.
Three geoparks are located around the research area; the Tateyama-Kurobe, Itoigawa, and Sado Island geoparks. Among them the Itoigawa geopark is assigned to a UNESCO Global Geopark. The geodynamic evolution of each geopark has been clarified based mainly on land geology. Reconstruction of geohistory should be made by research both on land and under the sea. The marine earth science studies can contribute to providing geodynamic reconstruction with essential data. On the other hand, important tectonic elements such as the Itoigawa-Shizuoka Tectonic Line and Kashiwazaki-Chiba (or Choshi) Tectonic Line recognizable on land must be traced in the marine areas as well. The Tateyama-Kurobe geopark includes marine areas whereas the Itoigawa, and Sado Island geoparks do not. To include marine areas in geopark not only deepens our understandings of geohistory but also contributes to raising our awareness on tsunami hazard.