Reconnaissance data of landslides and damages caused by liquefaction triggered by the 2018 M6.6 Hokkaido Eastern Iburi Earthquake. These data were collected as part of the GEER reconnaissance mission: 2018 M6.6 Hokkaido Eastern Iburi Earthquake to document the impacts and distribution of landslides and liquefaction following the earthquake. Terrestrial LiDAR and UAV data were collected from Sept. 27 – Oct. 2, approximately three weeks after the earthquake on Sept. 6th. HazMapper link provides overview of the various LiDAR and UAV data sets, while this repository includes all raw and processed data (in some cases raw data has greater resolution/quality). The intended audience is researchers and officials seeking to understand the impacts of these events, and aid in quantifying the magnitude and form of these landslide and liquefaction features. Further details on these datasets are available in the original GEER report: DOI:10.18118/G6CM1K
grant, a., R. Kayen, B. Wham, N. RAPID, K. Dedinsky (2023). "Eastern Iburi Earthquake Reconnaissance - 2018", in GEER - M6.6 Hokkaido, Japan. DesignSafe-CI. https://doi.org/10.17603/ds2-vcth-er91
Hide Data
Date(s)
2018-09-27 ― 2018-10-02
Author(s)
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Site Location
Hokkaido, Japan | Sapporo, Japan | Tomakomai, Japan | Atsuma, Japan | Lat 43.22 long 142.86
Date Published
2023-10-31
DOI
10.17603/ds2-vcth-er91
License
Open Data Commons Attribution
Description:
UAS data were collected at the Cow Slide and Water Treatment Plant Sites; LiDAR data were collected for the Dam, Port, Highway 59, Satozuka, and Yoshino sites. LiDAR was collected by means of Terrestrial Laser Scanning (TLS) and UAS data was created through the use of SfM (Structure from Motion) from drones.
Research Planning Collection | Deployment Documents
Data Collectors
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Description:
Resources related to the overall mission; imagery tile URLs and individual site images.
Imagery and pointclouds of settlement caused by liquefaction impacting a portion of the Port of Tomakomai. Two coincident LiDAR scans using different sensors were collected at this site for comparison between platforms. TLS data are within the Port of Tomakomai on the south coast of Hokkaido.
Imagery and pointclouds of landslides and associated structural damage at a Water Treatment Plant in Tomisato. Area includes landslides above and impacting the Tomisato, Atsuma Water Treatment Plant.
File Name
3D ModelPoint Cloud
Report
Orthomosaic
Engineering/Geosciences Collection | Cow Slide
Observation Type(s)
Landslide
Date(s) of Collection
2018-10-02 ― 2018-10-02
Data Collectors
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Equipment
Small Portable (backpack-size) Drone | DJI Mavic Pro
Imagery and pointclouds of low angle translational landslides within agricultural pastures, nicknamed ‘Cow Slide’. Area includes landslides within the neighborhood of Horosato, Atsuma in south-central Hokkaido.
Imagery and pointclouds of translational landslides northeast of Atsuma, Hokkaido. Area includes landslides within the neighborhood of Yoshino, Atsuma in south-central Hokkaido.
Imagery and pointclouds of extensive liquefaction impacts, including differential settlement and rotation of residential buildings in the neighborhood of Satozuka. Area includes liquefaction within the densely populated neighborhood of Satozuka, Sapporo in central Hokkaido.
Imagery and pointclouds of translational landslides that impacted Route 59 southeast of Atsuma, Hokkaido. Area includes landslides within the neighborhood of Uryu, Atsuma in south-central Hokkaido.
Imagery and pointclouds of translational landslides adjacent to the Apporo Dam on the Atsuma River. Area includes landslides within the neighborhood of Horonai, Atsuma in south-central Hokkaido.
