Radar Image of the Napa Earthquake
Recently the science community has developed a new way to image the ground displacement from earthquakes. It's called Synthetic Aperture Radar Interferometry, or InSAR for short. In fact NASA has recently signed an agreement with the Indian Space Agency to fund the launch of a radar satellite for earthquake and climate studies.
The European Space Agency ESA has had such radar capable satellites for years. One of these satellites, Sentinel-1, recorded and processed this image of the Napa earthquake. The earthquake is represented by the butterfly-shaped pattern at upper right. The San Francisco Bay can also clearly be seen.
About OpenHazards Bloggers
Steven Ward is a Research Geophysicist at
the Institute of Geophysics and Planetary Physics, UC Santa Cruz. He specializes in the quantification and simulation of
natural hazards. Read Steve's blog.
John Rundle is a Distinguished Professor of Physics
and Geology at UC Davis and
the Executive Director of the APEC Collaboration for Earthquake Simulations. He
chaired the Board of Advisors for the Southern California Earthquake Center from 1994 to 1996. Read John's blog.
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