AusPASS - Exploring the seismic structure of South Australia (CURNAMONA)

AusPass is a service dedicated to the acquisition, management, and distribution of passive seismological data in Australia. Extensive fieldwork projects are conducted across the country, organized in seismic arrays (i.e. groups of seismic stations).As part of a wider AuScope project 35 short-period (Lennartz 3D-Lite MkII) seismometers were deployed across the Curnamona Craton in South Australia. Station spacing was approximately 60 km and covers the area of over 100000 square km encompassing the Curnamona Craton and the Adelaide Geosyncline. Stations recorded continuous three component data for a period of 6-8 months. The instruments are capable of recording data from both local and distant earthquakes. The primary aim of this arrays is to increase data coverage in this part of Australia for seismic imaging. There are few permanent seismographs in the region covered by this array. This area of South Australia is also seismically active and local earthquake data recorded on this array will help improve our ability to locate and characterize these events.

AusPass是一项致力于澳大利亚境内被动地震数据采集、管理与分发的专业服务。项目在澳大利亚全国范围内开展大量野外工作，并以地震台阵（即地震台站集群）的形式进行组织。作为更大规模AuScope项目的组成部分，研究团队在南澳大利亚州的库尔纳莫克拉通（Curnamona Craton）区域部署了35台短周期（Lennartz 3D-Lite MkII）地震仪。台站间距约为60公里，覆盖面积超过10万平方公里，涵盖了库尔纳莫克拉通与阿德莱德地向斜（Adelaide Geosyncline）范围。所有台站均连续记录三分量数据，时长为6至8个月。该类仪器可记录本地与远震的数据。该台阵的核心目标是提升澳大利亚该区域的地震数据覆盖范围，以支撑地震成像研究。该台阵覆盖的区域内，现有永久地震台站数量极少。南澳大利亚州该区域同样属于地震活跃区，通过本台阵记录的本地地震数据，将有助于提升我们对这类地震事件的定位与特征分析能力。