Dr. Geoff Blewitt

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  www.freerepublic.com/focus/keyword?k=environment - [Cached Version]
  Published on: 6/28/2007    Last Visited: 6/28/2007  

  The earth wobbles in space ... and thanks to global positioning system (GPS) technologies, this wobble has been tracked with a precision of a few millimeters over the last decade ... Geoff Blewitt, University of Nevada research geophysicist, has an explanation for this mysterious geo-wobble.

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  www.geotimes.org/aug06/NN_tsunami.html - [Cached Version]
  Published on: 8/1/2006    Last Visited: 9/7/2008  

  The new technique relies on the global GPS network, in which stations are located all over the world, says Geoff Blewitt, a geophysicist at the University of Nevada in Reno.In the June 13 online Geophysical Research Letters, Seth Stein, Blewitt and colleagues reported that GPS stations can record even millimeter-sized permanent ground shifts caused by earthquakes hundreds to thousands of kilometers away from the epicenter.
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  The problem for tsunami warnings, Blewitt says, is that a magnitude-8 earthquake would not set off an ocean-wide tsunami, but a magnitude-8.5 or larger earthquake in the right location would.Thus, as happened for the Sumatra earthquake, he says, the seismometers' warning could come too late.

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  sciencenow.sciencemag.org/cgi/content/full/2007/615/1 - [Cached Version]
  Published on: 1/1/2007    Last Visited: 6/20/2007  

  Argus has hit on an "innovative idea that may prove successful," says geophysicist Geoff Blewitt of the University of Nevada, Reno.Whether the entire community adopts the result remains to be seen, Blewitt says, but "right now, it can certainly serve as one of the very few, welcome gauges of accuracy on the current method."

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  www.eurekalert.org/pub_releases/2007-04/uonr-ean040207. - [Cached Version]
  Published on: 4/2/2007    Last Visited: 4/17/2007  

  A research team led by Geoffrey Blewitt of the Nevada Bureau of Mines and Geology and Seismological Laboratory has demonstrated that a large quake's true size can be determined within 15 minutes using Global Positioning System data.This swift exchange of information, which is much faster than is possible with current methods, can be critical in determining whether an earthquake might trigger a tsunami.Together with a seismometer and ocean buoy data, GPS has the potential to become an important tool in improving tsunami danger assessments, Blewitt said.
  
  "We'll always need seismology as the first level of alert for large earthquakes, and we'll need ocean buoys to actually sense the tsunami waves," said Blewitt, whose work was originally accomplished through the NASA-funded Jet Propulsion Laboratory in Pasadena, Calif. Blewitt's team recently was granted further funding from the U.S. Geological Survey's Natural Hazards Reduction Program to continue research and development.

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  www.tsunamiresponsewatch.org/trw/2006/07/04/faster-tsun - [Cached Version]
  Published on: 10/7/2008    Last Visited: 4/4/2007  

  Geoffrey Blewitt of the University of Nevada, Reno lead a team that tested the concept, reporting their results this month in Geophysical Research Letters, published by the

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  www.cyberspaceorbit.com/iers.htm - [Cached Version]
  Published on: 9/26/2001    Last Visited: 2/19/2002  

  Jean O. Dickey, Olivier de Viron, Geoffrey Blewitt, and Benjamin F. Chao
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  Geoffrey BlewittUniversity of Nevada, RenoMail Stop 178Reno Nevada 89557Tel: 775-784-6691 x171Fax: 775-784-1709

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  www.iers.org/products/2/1029/orig/message_014.txt - [Cached Version]
  Published on: 10/1/2001    Last Visited: 1/26/2008  

  Jean O. Dickey, Olivier de Viron, Geoffrey Blewitt, and Benjamin F. Chao
  ...
  Geoffrey Blewitt University of Nevada, Reno Mail Stop 178 Reno Nevada 89557 Tel: 775-784-6691 x171 Fax: 775-784-1709

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  www.unavco.org/research_science/workinggroups_projects/ - [Cached Version]
  Published on: 1/27/2004    Last Visited: 11/3/2007  

  Geoff Blewitt,University of Nevada, Reno

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  www.unavco.org/research_science/workinggroups_projects/ - [Cached Version]
  Published on: 1/27/2004    Last Visited: 11/3/2007  

  Geoff Blewitt
  
  University of Nevada, Reno

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  in.news.yahoo.com/070403/139/6e3pd.html - [Cached Version]
  Published on: 7/4/2003    Last Visited: 4/3/2007  

  The team led by Geoffrey Blewitt of the Nevada Bureau of Mines and Geology and Seismological Laboratory have demonstrated that a large earthquake's true size can be determined within 15 minutes using Global Positioning System (GPS) data.
  
  Researchers say the swift exchange of information, which is much faster compared to the modes of communication currently used, can be critical in determining whether an earthquake might trigger a tsunami.
  
  "Together with a seismometer and ocean buoy data, GPS has the potential to become an important tool in improving tsunami danger assessments," said Blewitt, whose work was originally accomplished through the NASA-funded Jet Propulsion Laboratory in Pasadena, California.
  
  "We'll always need seismology as the first level of alert for large earthquakes, and we'll need ocean buoys to actually sense the tsunami waves.But the advantage of including GPS in warning systems is that it quickly tells how much the ocean floor moved, and that information can directly set tsunami models into motion," he said.

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