Díaz Jordi, Ruiz Mario, Sánchez-Pastor Pilar S, Romero Paula
Institute of Earth Sciences Jaume Almera. Consejo superior de Investigaciones Científicas (ICTJA-CSIC), Barcelona, Spain.
Sci Rep. 2017 Nov 10;7(1):15296. doi: 10.1038/s41598-017-15499-y.
Urban seismology has become an active research field in the recent years, both with seismological objectives, as obtaining better microzonation maps in highly populated areas, and with engineering objectives, as the monitoring of traffic or the surveying of historical buildings. We analyze here the seismic records obtained by a broad-band seismic station installed in the ICTJA-CSIC institute, located near the center of Barcelona city. Although this station was installed to introduce visitors to earth science during science fairs and other dissemination events, the analysis of the data has allowed to infer results of interest for the scientific community. The main results include the evidence that urban seismometers can be used as a easy-to-use, robust monitoring tool for road traffic and subway activity inside the city. Seismic signals generated by different cultural activities, including rock concerts, fireworks or football games, can be detected and discriminated from its seismic properties. Beside the interest to understand the propagation of seismic waves generated by those rather particular sources, those earth shaking records provide a powerful tool to gain visibility in the mass media and hence have the opportunity to present earth sciences to a wider audience.
近年来，城市地震学已成为一个活跃的研究领域，其兼具地震学目标，如在人口密集地区获取更好的微区划图，以及工程学目标，如交通监测或历史建筑勘查。我们在此分析位于巴塞罗那市中心附近的西班牙皇家科学院地球科学研究所安装的一个宽带地震台所获取的地震记录。尽管该地震台是为在科学展览及其他科普活动期间向参观者介绍地球科学而安装的，但对数据的分析已使我们能够推断出科学界感兴趣的结果。主要结果包括：有证据表明城市地震仪可作为一种易于使用且坚固耐用的监测工具，用于监测城市内的道路交通和地铁活动。由不同文化活动（包括摇滚音乐会、烟花表演或足球比赛）产生的地震信号可以从其地震特性中被检测和区分出来。除了理解由这些相当特殊的源产生的地震波传播情况的研究价值外，这些震动记录还提供了一个在大众媒体上提高知名度的有力工具，从而有机会向更广泛的受众展示地球科学。
