Seismological and Tectonic Analyses of the Upland Earthquakes

这笔赠款将通过SGER计划为急需的支持提供资金，以涵盖对加利福尼亚州高地地区1988年和1990年地震序列的分析和解释。第二个序列在余震中非常丰富，几乎足以触发Keilis-Borok地震预测算法中的TIP(概率增加的时间)。由于与1952-1985年相比，洛杉矶盆地自1986年3月以来处于地震活动增强的时期，因此及时分析这些序列是很重要的。由于小地震和大地震都更有可能在地震活动增加的时候发生，因此这项研究对减轻洛杉矶和圣贝纳迪诺县城市地区的地震风险具有一定的紧迫性。这项工作对国家防震减灾规划具有直接的应用价值。

This grant will fund urgently needed support through the SGER program to cover analysis and interpretation of the 1988 and 1990 sequences of earthquakes in the Upland, California, area. The second sequence was very rich in aftershocks and almost large enough to trigger a TIP (time of increased probability) in the Keilis-Borok earthquake prediction algorithm. Because the Los Angeles basin is in an episode of enhanced earthquake activity since March 1986 as comparaed to the time period 1952-1985, it is important to analyze these sequences in a timely manner. Because both small and large earthquakes are more likely during times of increased earthquake activity, this research has some urgency interms of mitigating earthquake hazards in the urban areas of Los Angeles and San Bernardino Counties. This work has direct application to the National Earthquake Hazard Reduction Program.