Astrium Satellites Observe Disaster in Japan

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On Friday, March 11, 2011 Japan was struck by a powerful earthquake registering an 8.9 magnitude on the Richter scale. An hour later, a tsunami washed over the Japanese coast with water levels reaching over 30 feet high. Since the initial earthquake, there have been more than 50 aftershocks, seven of which have registered at least a 6.2 on the Richter scale.

That same day, a state of emergency was declared and approximately 3,000 people were forced to evacuate due to a cooling system failure at the Fukushima Daiichi nuclear power plant.

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SPOT-5 Responds to the Disaster Area
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Immediately following the initial earthquake, SPOT-5 was tasked by the International Charter on Space and Major Disasters to obtain images of the affected areas. On Saturday, March 12, SPOT-5 acquired the first strip of 4 scenes covering the city of Sendai along with both Fukushima nuclear power plants. Additional SPOT-5 imagery of the area was acquired on Sunday, March 13. The International Charter on Space and Major Disasters is made up of space agencies all over the world. The purpose of the International Charter is to acquire and deliver data to those affected by natural or man-made disasters throughout the world. Astrium GEO-Information Services is proud to be a part of the International Charter.

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- High Res Coverage of Affected Area -
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High Res Coverage of Affected Area

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Following the cooling system failure and subsequent evacuation at the Fukushima Daiichi nuclear power plant, an explosion occurred near nuclear reactor #1. In addition, it was reported that cooling systems in 3 out of the 4 reactors at the Fukushima Daini nuclear power plant (approximately 7.5 miles south) had also failed. As a precaution, a mandatory evacuation was ordered for those within 12.5 miles of the two plants.

SPOT-5 was able to obtain images of both nuclear power plants on Saturday, March 12. To see these dramatic images, along with the evacuation area, check out the images above.

To learn more about the International Charter and view additional SPOT-5 images of Japan, click here.

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TerraSAR-X Change Analysis
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In addition to SPOT-5, another satellite in the Astrium GEO-Information Services portfolio, TerraSAR-X has been collecting data over Japan after the disaster. Combing new imagery with archive data produced a detailed change analysis of the Sendai area. This analysis clearly shows affected urban areas, flooded areas, and areas filled with debris. Click the image on the right for a detailed look.

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- TerraSAR-X Change Analysis of Sendai  Top -
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TerraSAR-X Change Analysis of Sendai Top

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