This is the category for the United States Geological Survey (USGS), a federal scientific agency of the US Government that studies landscape, natural resources, and natural hazards.

In most cases it is NOT sufficient, for inclusion in this category, that an article cite USGS for the magnitude of an earthquake. That's routine statistics-gathering for USGS, and probably applies to a large fraction of all articles in Category:Earthquakes, so automatic inclusion of all such articles here would dilute the category, making it less useful for finding articles of particular relevance to USGS.

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• 13 August 2014: India urges peaceful settlement of disputes at South China Sea
• 25 April 2012: Disposal of fracking wastewater poses potential environmental problems
• 14 June 2010: Flash floods kill at least nineteen campers in Arkansas
• 4 April 2010: 7.2 quake rattles lower Colorado River area in Mexico
• 9 February 2008: Quake strikes around Mexico-U.S. border
• 6 November 2007: Rare earthquake strikes Antarctica
• 30 September 2007: Three strong earthquakes strike near New Zealand
• 24 September 2007: Seven caves found on Mars: NASA
• 17 January 2007: Cassini photographs possible lakes on Saturn's moon, Titan
• 14 September 2005: Volcanic bulge found in Oregon

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