GEER findings – ground motions
April 19, 2009 posted by stewart
Filed under Earth Sciences, General, Geotechnical Engineering
We have not looked at individual records yet, but we have the motions for the mainshock, largest aftershock, and triggered event from a DPC website. The mainshock data have been forwarded to PEER and CESMD for processing. We have 56 mainshock recordings, including 4 in the immediate vicinity of L’Aquila. Three of those are west of the city in a sparsely developed valley (however, this is near the hospital). The fourth is near the historic center of L’Aquila. The center sits on a Pleistocene terrace. There is a swale east of the center, and the instrument is above a pedestrian tunnel portal on the edge slope of the Pleistocene terrace (nearby structure is a car park). We were not able to walk up to the instrument because access to the car park is denied. This instrument recorded about 0.35 g. The instruments W of L’Aquila recorded 0.5-0.7 g.


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