IPOC Seismic Network

The IPOC seismic network is part of the Integrated Plate boundary Observatory Chile (IPOC), a European-Chilean network of institutions and scientists organizing and operating a distributed system of instruments and projects dedicated to the study of earthquakes and deformation at the continental margin of Chile. In particular, the seismic network is jointly operated by the GFZ German Research Centre for Geosciences, Potsdam, Germany; the Institut de Physique du Globe Paris, France (IPGP); the Chilean National Seismological Centre (CSN); the Universidad de Chile, Santiago, Chile (UdC); and the Universidad Católica del Norte, Antofagasta, Chile (UCNA). The subduction plate boundary between the South American and the oceanic Nazca plates exhibits some of the largest earthquakes on Earth. The IPOC goal is to improve the understanding of both the physical mechanisms underlying these processes and the natural hazards induced by them. The observatory is designed to monitor the plate boundary system from the Peru-Chile border to south of the city of Antofagasta, from the coast to the high Andes, capturing both great and small earthquakes in this region. A key component of IPOC is its multi-parameter observatories, where at each site a suite of different physical parameters are measured continuously. So far about 20 such multi-parameter stations are installed. All of these sites are equipped with STS-2 broadband seismometers and accelerometers. Additional instrumentation at some of the stations includes continuous GPS, electric and magnetic field (MT), surface inclination, and climate (temperature, air pressure, humidity). Most sites transmit their data in near-real time using a suite of communication channels (VSAT, WiFi, telemetry etc.). Seismic instruments are deployed on concrete pedestals in bedrock caverns (a few meters deep) to measure ground shaking from earthquakes or other sources that last from a tiny fraction of a second to several hours. Strong-motion sensors are deployed next to the broadband sensors to increase the dynamic range and for earthquake engineering applications. Broadband data are freely distributed in real-time and archive data is also available. This DOI encompasses all IPOC seismic data; data is available under FDSN network code CX.

IPOC地震台网是智利综合板块边界观测站（Integrated Plate boundary Observatory Chile，IPOC）的一部分，后者是由欧洲与智利机构及科学家组成的网络，负责组织和运行分布式仪器系统与项目，致力于研究智利大陆边缘的地震与形变过程。具体而言，该地震台网由德国波茨坦地球科学研究中心（GFZ German Research Centre for Geosciences）、法国巴黎地球物理研究所（Institut de Physique du Globe Paris，IPGP）、智利国家地震中心（Chilean National Seismological Centre，CSN）、智利圣地亚哥智利大学（Universidad de Chile，UdC）及智利安托法加斯塔北方天主教大学（Universidad Católica del Norte，UCNA）联合运营。

南美板块与纳斯卡洋板块之间的俯冲板块边界是地球上发生特大地震的区域之一。IPOC的目标是深化对这些过程背后物理机制及其引发自然灾害的理解。观测站设计用于监测从秘鲁-智利边境至安托法加斯塔市南部、从海岸到安第斯山脉高地的板块边界系统，捕捉该区域内的大小地震。

IPOC的核心组成部分是多参数观测站，每个站点持续测量一系列不同物理参数。截至目前，已安装约20个此类多参数站点。所有站点均配备STS-2宽带地震仪和加速度计；部分站点的附加仪器包括连续GPS、电场与磁场（MT）、地表倾斜度及气候（温度、气压、湿度）监测设备。

大多数站点通过一系列通信信道（VSAT、WiFi、遥测等）近实时传输数据。地震仪器部署在深数米的基岩洞穴内的混凝土基座上，用于测量地震或其他震源产生的、持续时间从几分之一秒到数小时不等的地面震动。强震传感器部署于宽带传感器旁，以扩大动态范围并服务于地震工程应用。

宽带数据实时免费分发，存档数据亦可获取。本DOI涵盖所有IPOC地震数据；数据可通过FDSN网络代码CX访问。