Machinomachi landslide

LCI : JPN2410011530
Main Information
Landslide Name : Machinomachi landslide
Latitude : 37:25:5.8 N
Longitude : 137:4:3.99 E
Location
City / District : Wajima
Province : Ishikawa
Country : Japan
Reporter
Reporter 1 : Doan Loi
Reporter 2 : Loi Doan
Landslide Type
Material : Earth
Movement : Slide
Velocity (mm/sec) : Very Rapid
Depth (m) : Moderate-Shallow
Slope (degree) : Steep
Volume (m³) : Large-Moderate
Date of Occurence
Date of Occurence : Jan 01, 2024
Other Information
Land Use Source area : Forest
Run-out/deposition area : Forest, Farming, Human settlement, Road
Other Activity : Active in the past
Triggering Factor : Earthquake
Death(s) & Missing : -
Houses and other structural damage : 3
Photo of landslide :
Google earth kmz file : Machinomachi landslide.kmz
Plan of landslide :
Cross section of landslide :
Reference (paper/report) : https://link.springer.com/article/10.1007/s10346-024-02333-6
Testing graph :
Monitoring graph :
Video of moving landslides including 3D simulation : https://youtu.be/lS0Ju20B9zA
Description :

At 16:10 (JST) on January 1, 2024, an intense earthquake struck the Noto Peninsula area of Ishikawa Prefecture, Japan. The Japan Meteorological Agency (JMA) magnitude MJMA was 7.6, and the epicenter was 37.498° North and 137.242° East. The cascading effects of the Noto earthquake caused extensive damage on the Noto Peninsula, particularly in Wajima, Suzu, Noto, and Anamizu. As of 14:00 on March 26, this earthquake claimed 244 lives (15 people were reported as disaster-related deaths) and damaged 74,923 houses (Ishikawa Prefecture report, 2024). Shortly after the event, the Geospatial Information Authority of Japan mapped and published the locations of the landslides. The 2024 Noto Peninsula earthquake triggered more than 2300 landslides over a wide area. Although shallow, distributed landslides were common, long-traveling landslides caused significant damage. The Machinomachi landslide was in Machinomachi, Wajima City, Ishikawa Prefecture, about 30 km from the epicenter. The landslide block is about 80 m long, 160 m wide, and 20 m thick. The landslide occurred on a steep slope with an inclination of about 35°, and it moved over 550 m onto the flat paddy field. The apparent angle calculated from the line connecting the head scarp to the toe of the landslide was 15.5°, indicating high mobility. – – – – – Source: Loi, D.H., Jayakody, S., Sassa, K. et al. Landslides triggered by the 2024 Noto Peninsula earthquake. Landslides 21, 2583–2590 (2024). https://doi.org/10.1007/s10346-024-02333-6