研究地震,需要观测地震的台站。为了进行有效的观测,这些台站必须利用可得到的最新技术。美国已经制定了一项达到这项目标的计划。美国定量地震学中的第一个大进展出现在1887年。这年在加州大学(伯克利)和里克(Lick)观测台首次安装了固定地震仪。地震图大大促进了地震波的研究,并且是解释北美构造和勘探矿物和石油的一个关键。近代改进第一代观测台的首次尝试出现在 Study earthquakes, stations that require observation of earthquakes. For effective observation, these stations must make use of the latest available technology. The United States has put in place a plan to achieve this goal. The first major development in quantitative seismology in America occurred in 1887. This year, for the first time, fixed seismometers were installed at the University of California (Berkeley) and Lick observatories. The seismogram greatly facilitates the study of seismic waves and is a key to explaining North America’s structure and exploration of minerals and oil. The first attempt to modernize the first generation of observatories appeared in modern times