The authors are one of five teams developing empirical ground motion (attenuation) relations for active shallow crustal regions as part of the PEER Next Generation Attenuation (NGA) Project. Each Developer Team was provided with a common database of worldwide strong-motion recordings and supporting metadata, but was given the freedom to use separate data selection criteria, parameters, function...

[1] Analysis and modeling of InSAR data covering the 2008 Reno-Mogul M 4.7 earthquake swarm indicate that the main event was produced by slip on a previously unrecognized strike-slip fault in the Reno basin. Deformation of 0.5– 2.5 cm in radar line-of-sight was produced by the main event and post-seismic slip over an area of more than 150 km. This earthquake is one of the smallest magnitude eve...

The protocol with RJS at UCLA requires that all programs and data to be transmitted on the data connection be blocked[2]. This means that we simulate records and blocks with special headers. This we found to be another problem because of the computation and core space involved. This computation took an appreciable amount of time and core space we found because of our real core size that we were...

We consider how a persistent programming language might offer performance competitive with that of non-persistent languages, at least on memory resident data. We are concernedwith object-oriented languages, and with implementing persistence via object faulting, where the system detects uses of non-resident objects and fetches them on demand. We present some background on object faulting and mea...

We consider how a persistent programming language might offer performance competitive with that of non-persistent languages, at least on memory resident data. We are concerned with object-oriented languages, and with implementing persistence via object faulting, where the system detects uses of non-resident objects and fetches them on demand. We present some background on object faulting and me...

Triggered by reactivation of the strike-slip North Anatolian Fault, the disastrous Mw 7.4 Kocaeli (Turkey) earthquake also produced normal faulting in the pull-apart basin of Gölcük. Surface scarps from such faulting reached almost 2.5m in height. Several structures were crossed by the surface rupture. As expected, many of them either collapsed or were severely damaged. But, surprisingly, sever...

This article presents equations for the estimation of vertical strong ground motions caused by shallow crustal earthquakes with magnitudes Mw ≥ 5 and distance to the surface projection of the fault less than 100 km. These equations were derived by weighted regression analysis, used to remove observed magnitude-dependent variance, on a set of 595 strong-motion records recorded in Europe and the ...