Seismic and Aseismic Slip at Subduction Zones and Predictionof Great Earthquakes

这项研究遵循先前成功的NSF支持的工作， 研究了逆冲型板块边界构造的性质。 在目前的研究中，板块边界的粗糙度在 俯冲带及其对最大逆冲规模的控制 地震是要研究的。 这可能比 俯冲速率和板块年龄为控制因素 以前。 同时，基于地震力矩释放的证据 在加州四个大城市建成之前的几十年里， 地震前，地震矩将被调查大 俯冲带事件 这两个问题都关系到 地震风险和灾害。 这项研究是一个组成部分， 国家地震减灾计划。

This research follows previous successful NSF-supported work that investigated the nature of thrust-type plate boundary tectonics. In the present research, the roughness of the plate boundary at subduction zones and its control of the maximum size of thrust earthquakes is to be studied. This may be more important than subduction rate and plate age as controlling factors proposed previously. Also, based on evidence that seismic moment release increased in the few decades before four large California earthquakes, seismic moment will be investigated prior to large subduction zone events. Both subjects bear on the estimate of earthquake risk and hazard. This research is a component of the National Earthquake Hazard Reduction Program.