2015-2018年一带一路区域地球大数据气候与灾害专题数据集

USGS官方网站每天都会实时更新全世界的地震信息，包含地震发生的地点，坐标，震级，震中距离地表的距离等等，坐标系采用的是地心坐标系WGS84，如何将这些实时的信息采集到自己的系统之中，用于进一步的科学计算和空间分析，需要借助一些解析数据和空间计算的方法。
GIS主流的应用策略之一，是融合共享，也是技术发展的整体需求，接下来的内容并不关心如何共享，而是从共享的最基础层面-数据层面，来解析USGS网站页面中的地震空间数据。

The official website of the United States Geological Survey (USGS) updates real-time global earthquake information daily, including the earthquake's location, coordinates, magnitude, distance from the epicenter to the Earth's surface and other relevant details. The coordinate system used is the WGS84 geocentric coordinate system. To collect this real-time data into one's own system for further scientific computing and spatial analysis, certain data parsing and spatial calculation methods are required. One of the mainstream application strategies of Geographic Information System (GIS) is data integration and sharing, which is also a general requirement for technological development. The following content does not focus on how to achieve data sharing, but instead analyzes the spatial earthquake data from the USGS website pages from the most basic level of sharing—the data level.