Worldwide data · automatic updates
The planet moves.
See it happen.
Recent earthquakes on a world map, verifiable seismic history and a transparent estimate of observed frequency around any coordinates.
visual signal · recent activity
USGS global catalogue
Syncing…
PAN · ZOOM · SELECT AN EVENT
03 · Historical catalogue
Travel back
in time.
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 · Local statistics
Place a point.
Read its history.
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
Real data.
Visible limits.
Your browser loads USGS GeoJSON feeds and refreshes the map every five minutes. Open an event to check its time, depth and magnitude in the original record: the catalogue can be revised later.
The interval includes both complete UTC dates. The total is queried separately; the chart and highlighted events use at most the 2,000 most recent events. A capped chart does not describe the entire period's monthly trend.
The observed rate is λ=N/H: recorded events divided by observation years. P(≥1)=1−exp(−λT) assumes a constant rate and independent events. Historical blocks do not share boundary instants.
Aftershocks and detection changes can violate these assumptions. Radius measures distance to the epicentre, not shaking intensity at your location. Sample size does not measure accuracy or validate the model. Use official sources for hazard, construction and emergencies.