Main Information

LCI: jpn1607131407

An earthquake with a moment magnitude of 7.0 occurred in northern Japan on May 26, 2003. Landslides were triggered by the earthquake, and among which a massive landslide occurred in the Tsukidate area, northwest of Sendai, the capital city of Miyagi Prefecture. The Tsukidate landslide partially destroyed two houses. Although two people were partially buried by the displaced landslide mass, both were subsequently rescued. The landslide was triggered on a gentle slope with the sliding surface inclination of approximately 13.5 degrees. The displaced landslide mass traveled a long distance of about 130 m, and finally spread and deposited on a horizontal rice paddy, thus showing some typical characteristics of rapid long traveling flow phenomenon. Because this landslide was triggered by an earthquake without rainfall, the fluidization behavior of the landslide attracted the attention of researchers in various fields.

Location

City / District: Tsukidate

Province: Miyagi

Country: Japan

Latitude: 38:44:59 N

Longitude: 141:00:51 E

Reporter

Reporter 1: Khang Dang

Reporter 2: Hiroshi Fukuoka

Landslide Type

Material: Earth

Movement: Slide

Velocity (mm/sec): Rapid (5×10⁻¹ - 5×10¹ )

Depth (m): Moderate-Shallow (5 - 20)

Slope (degree): Gentle (10 - 20)

Volume (m³): Unknown

Date of Occurence

Date of Occurence: 05/26/2003

Other Information

Land use (Source Area): Forest

Land use (Run-out/deposition area): Farming, Human settlement

Other Activity: Active in the past

Triggering Factor: Earthquake

Death(s) & Missing: -

Houses and other structural damage: 2 houses

Photo of landslide

Google earth kmz file

Plan of landslide

Cross section of landslide

Reference (paper / report) (Insert link)

Testing graph

Monitoring graph

Video of moving landslides including 3D simulation