全球数据 · 自动更新
地球在运动。
在这里亲眼看见。
Recent earthquakes on a world map, verifiable seismic history and a transparent estimate of observed frequency around any coordinates.
visual signal · recent activity
USGS 全球目录
正在同步…
PAN · ZOOM · SELECT AN EVENT
03 · 历史目录
回到
过去。
Choose a date range and minimum magnitude. See the global count, monthly trend and strongest events in the sample.
The chart displays at most 2,000 events; the untruncated total is queried separately.
The historical explorer is ready.
Choose a period and query the catalogue. Years of data are not loaded until you ask for them.
04 · 当地统计
选择一个点。
了解它的历史。
Calculate the frequency of recorded earthquakes within a radius and the mathematical probability of at least one event in a future horizon, assuming the historical rate remains stable.
Your point is still empty.
Enter coordinates or try an example. The calculation only runs when you press the button.
05 · How to read SeismoTotal
真实数据。
限制透明。
The map reads official USGS GeoJSON feeds and refreshes every five minutes.
The explorer uses the USGS FDSN service. The total is not truncated; the chart caps its sample to keep the site responsive.
The Poisson model extrapolates a past rate. It explores frequency; it does not forecast when an earthquake will happen.
For construction, insurance or emergency planning, use geological studies, official maps, local codes and qualified professionals.