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Glossary
Pages 63-64

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From page 63...
... IUGG - International Union of Geodesy and Geophysics LASA - Large Aperture Seismic Array Ms - Earthquake Magnitude determined using surface waves Mfr - Earthquake Magnitude determined using body waves NASA - National Aeronautics and Space Administration NEIS - National Earthquake Information Service NOAA - National Oceanic and Atmospheric Administration NORSAR - Norwegian Seismic Array NSF - National Science Foundation OBS - Ocean-bottom seismographs OMB - Office of Management and Budget PDE - Preliminary Determination of Epicenters R - Rayleigh wave SDAC - Seismic Data Analysis Center 63
From page 64...
... USGS - U.S. Geological Survey WDC - World Data Center WWSSN - Worldwide Standardized Seismograph Network (or Worldwide Network of Standardized Seismograph Stations)


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