Deep Well Seismology at Parkfield, CA: Sensor Array and Microearthquake Wave VSP (Instrumentation)

加利福尼亚州帕克菲尔德的深井地震学：传感器阵列和微地震波 VSP（仪器）

• 批准号: 8708438
• 负责人: Peter Malin
• 金额: $ 8.23万
• 依托单位: University of California-Santa Barbara
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-07-01 至 1989-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8708438&HistoricalAwards=false
• 关键词: Deep; Well; Seismology; Parkfield; CA

The Varian A-1 well, drilled to approximately 1.5 km depth a few kilometers northwest of Parkfield, California, presents an opportunity for analysis of seismic signals close to the San Andreas fault zone at a location where a large earthquake is predicted. The U.S. Geological Survey has committed funds to open the well so that a seismometer array can be installed for seismic vertical profiling. This project will result in the design, fabrication, purchase, and assembly of a seismic sensor system to be installed in the Varian A-1 well. In addition to its location close to the nucleation zone of major earthquakes, the deep well is an excellent observatory site for sensitive measurements because it is not subject to surface and near-surface seismic noises. This project will contribute to a better understanding of earthquake-generating mechanisms and to improved earthquake prediction capabilities.

Varian a -1井位于加利福尼亚州帕克菲尔德西北几公里处，深度约1.5公里，为分析靠近圣安德烈亚斯断裂带的地震信号提供了机会，该断裂带预计会发生大地震。美国地质调查局已经投入资金来打开这口井，以便安装地震检波器阵列，进行地震垂直剖面分析。该项目将设计、制造、购买和组装地震传感器系统，并将其安装在Varian a -1井中。除了它的位置靠近大地震的成核带，深井是一个很好的观测地点，因为它不受地面和近地面地震噪声的影响。该项目将有助于更好地了解地震发生机制和提高地震预报能力。