Mapping Ground Movement During the Christchurch Earthquake

Ground Movement after the Christchurch Earthquake

Source: COMET+ | Japanese Aerospace Exploration Agency (JAXA)

Via BBC News, radar imagery detailing ground movement during the February 2011Christchurch Earthquake. The map was produced from data captured by the Japanese Advanced Land Observing Satellite (Alos) before and after the quake.

The coloured fringes represent ground displacement measured in centimetres, towards (in blue) and away (red) from the orbiting satellite. According to the Centre for the Observation and Modelling of Earthquakes and Tectonics, the tightest bands indicate where the fault rupture projects towards the surface – near the centre of Christchurch.

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