The Landslide

The Landslide

Electricity saving, news about radioactive leakage from nuclear plants, stalemate of the government. all have become a part of life. Japan is getting used to "new normal".

With the aime of improving seismology and volcanology, the Geospatial Information Authority of Japan, GIS, publishes daily position data which are observed at 1200 sites nationwide under GEONET system.

Although the transmission system was broken by the Tohoku Earthquake, GIS collected GPS data manually and found that the site at Oshika had moved 5.3 meters horizontally and sank 1.2 meters. Researchers at GIS estimate land-slip near the epicenter to be 25 meters. GEONET also detected silent and gradual landslide well after the quake.

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