Posted on 10/17/2015 4:57:33 PM PDT by SunkenCiv
On 16 September 2015, an 8.3 magnitude earthquake struck the coast of central Chile, triggering tsunami warnings and coastal evacuations. Lasting three minutes, this powerful earthquake occurred along the boundary of the Nazca and South American tectonic plates.
By combining Sentinel-1A radar scans from 24 August and 17 September, the rainbow-coloured patterns in the image show how the surface has shifted as a result of the quake. ‘Interferograms' such as these allow scientists to quantify ground movement. By counting the ‘fringes', it is estimated that the earthquake caused a displacement of 1.4 m along the viewing direction of the radar observation. In addition, a 0.5 m horizontal movement is estimated along the flight direction of the satellite.
Sentinel-1A's all-weather, day-and-night radar imagery is particularly suited to support impact assessment for many types of geohazards.
Sentinel-1A was developed and is operated by ESA. It was the first satellite launched for Europe's environmental monitoring Copernicus programme, which is led by the European Commission.
(Excerpt) Read more at scientificcomputing.com ...
Not my fault.
Looks like the seismologists have gotten into the Ayahuasca again.
1.4miles displacment......
That is one mega whiplash injury!
i can see your finger print on the picture,Darks. :D
*looks*
That does resemble a fingerprint.
I think they mean meters.
But don’t quote me on that.
Meters please 1.4 meters. That’s a lot for an earthquake.
Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.
