Tremor detections near the Mendocino Triple Junction, 2015-2018

This tremor catalog is a 2019 revision of the tremor catalog from the Pacific Northwest Seismic Network (https://pnsn.org/tremor) with specific focus on the Mendocino Triple Junction region. The time range is 01-01-2015 to 01-01-2018. It contains modifications from the PNSN catalog because: 1) the number of available seismic stations was variable in this spatio-temporal range, and 2) the data quality was occasionally poor because a few stations in this spatio-temporal range experienced analog telemetering issues that resulted in false detections. We attempted to address these two problems in the following catalog, producing a slightly different catalog from the automatically generated PNSN version.

本震颤目录（tremor catalog）为2019年修订版，源自太平洋西北地震台网（Pacific Northwest Seismic Network，PNSN，https://pnsn.org/tremor）发布的原始震颤目录，研究重点聚焦于门多西诺三联点（Mendocino Triple Junction）区域。该目录的时间覆盖范围为2015年1月1日至2018年1月1日。本目录相较于PNSN原始目录存在两处修正：其一，该时空范围内可用地震台站的数量存在波动；其二，该时空范围内部分台站出现模拟遥测（analog telemetering）故障，引发误检测（false detections）事件，导致部分时段数据质量欠佳。本次修订针对上述两类问题进行了优化处理，最终生成的目录与PNSN自动生成的原始版本存在细微差异。