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Big quakes do not trigger distant global quakes study says
New York AP reports a study by Tom Parsons of USGS and Aaron Velasco of UT El Paso finds major earthquakes do not spark distant moderate quakes beyond about 600 miles, though local aftershocks occur. They analyzed 30 years of worldwide data up to 2009, noting increases only within 600 miles.
MENTIONED IN THIS ARTICLE
New York
Japan
Tom Parsons
Parsons
U.S. Geological Survey
Menlo Park
Calif
Aaron Velasco
University of Texas At
Paso
Nature Geoscience
Klaus Jacob
Columbia University
Lamont-Doherty Earth Observatory
Jacob