NZ Shakeout 2012 is Wednesday 26th. We should all know what to do in an earthquake, and that's 'drop, cover, hold.' Watch this video as Peter Elliott explains what to do when an earthquake happens. Video courtesy NZGetThru.
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While other satellites in the programme observe oceans, land and ice from on high, Sentinel-5P will monitor our atmospheric chemistry, particularly pollution, climate change and the ozone layer. / AP