Reno . . Las Vegas Wells . USGS J. Louie, Brown Univ. 11 March 2008.

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Presentation transcript:

Reno . . Las Vegas Wells . USGS J. Louie, Brown Univ. 11 March 2008

This morning’s M6.3 event near Wells. For 2006 and half of 2008, NSF-funded USArray stations- blue triangles- help us monitor E. Nevada. They move east in a few months! It would cost $30k to retain a station. How do we keep the 40 USArray stations that are the only way to monitor quakes like this? J. Louie, Brown Univ. 11 March 2008

This morning’s M6.3 event near Wells. NSL ShakeMap shows effect of basins and soils on peak ground velocity (PGV) contours. Presently, Vs30 is estimated from topographic slope only for Nevada ShakeMaps. J. Louie, Brown Univ. 11 March 2008

Photos by Marilyn Newton, Reno Gazette-Journal J. Louie, Brown Univ. 11 March 2008

Photos by Marilyn Newton, Reno Gazette-Journal J. Louie, Brown Univ. 11 March 2008 Photos by Marilyn Newton, Reno Gazette-Journal

Wells, NV M6.0 2/21/2008 ShakeMap PGV shows bullseyes at stations and CIIM zipcode centroid points J. Louie, Brown Univ. 11 March 2008

Wells, NV M6.0 2/21/2008 E-shallow-dip fault from CMT. J. Louie, Brown Univ. 11 March 2008

Wells, NV M6.0 2/21/2008 E-shallow-dip fault from CMT. J. Louie, Brown Univ. 11 March 2008

Wells, NV M6.0 2/21/2008 NW-steep-dip fault from CMT. J. Louie, Brown Univ. 11 March 2008

Wells, NV M6.0 2/21/2008 NW-steep-dip fault from CMT. J. Louie, Brown Univ. 11 March 2008

Wells, NV M6.0 2/21/2008 NW-dip fault plane matches recorded PGVs better than shallow E-dip plane. J. Louie, Brown Univ. 11 March 2008