Earthquakes, From Above and Below: Live Chat

MEDIA RELATIONS OFFICE
JET PROPULSION LABORATORY
CALIFORNIA INSTITUTE OF TECHNOLOGY
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION
PASADENA, CALIF. 91109 TELEPHONE 818-354-5011
http://www.jpl.nasa.gov

Alan Buis 818-354-0474
Jet Propulsion Laboratory, Pasadena, Calif.
Alan.buis@jpl.nasa.gov

INTERNET ADVISORY: 2009-105 July 1, 2009

Earthquakes, From Above and Below: Live Chat

Earthquakes: they're among the most frightening and deadly of all natural disasters. A live
videocast and chat from NASA's Jet Propulsion Laboratory, Pasadena, Calif., will give viewers an
opportunity to ask questions of NASA scientists who are using space-based technologies to
advance our understanding of these mysterious phenomena.

The live event will air on the "NASAJPL" channel available on Ustream TV at:
http://www.ustream.tv/channel/nasajpl on Monday, July 6, beginning at 5 p.m. PDT (8 p.m. EDT
and 2400 UTC).

Scientists use a broad array of tools to study earthquakes and their processes from the ground, air
and space. Space-based technologies like those being developed at JPL can image minute Earth
movements to within fractions of an inch, measuring the ground deforming along faults before and
after earthquakes. Among these tools are the Global Positioning System, interferometric synthetic
aperture radar, and the latest technology JPL is now using to map major California earthquake
faults: the Uninhabited Aerial Vehicle Synthetic Aperture Radar, or UAVSAR. JPL scientists are
also applying complex computer models to simulate earthquake processes.

Participants include:

* Andrea Donnellan, JPL geophysicist and program area lead for natural disasters in NASA
Headquarters' Science Mission Directorate, Washington
* Maggi Glasscoe, JPL geophysicist

Viewers may submit questions over Ustream or via Twitter. Twitter users may send their questions
to @NASAJPL using the hashtag #quakechat .

In addition, if you are unable to take part in the live chat, you may submit questions in advance to
chatquestion@jpl.nasa.gov and watch the archived video at a later time.

More information about JPL's earthquake research is available at: http://uavsar.jpl.nasa.gov and
http://quakesim.jpl.nasa.gov .

JPL is managed for NASA by the California Institute of Technology, Pasadena.
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