Washington State Play Fairway Analysis - Passive Monitoring of St. Helens Shear Zone for Tomography and Precision Microseismic Event Detection

Data resources were derived from a passive seismic survey of the northern St. Helens Shear Zone on geothermal leases 12-24 km north of Mount St. Helens for phase 2 of the Geothermal Play-Fairway Analysis of Washington State Prospects. A 20 seismic station array of broadband seismometers was deployed with irregular spacing (1-4 km) over an area of 12 km to image seismogenic features and their damage zones in the shallow crust.

数据资源源于对圣海伦斯剪切带北部地区进行的地热租赁区域（位于圣海伦斯山北12-24公里处）的被动地震调查，该调查是为华盛顿州地热有利地质分析的第二阶段而进行的。部署了一个包含20个地震站的宽带地震仪阵列，其布局不规则（间距为1-4公里），覆盖面积达12平方公里，以成像浅层地壳中的震源特征及其破坏区。