About CronosPulse

CronosPulse is an open data visualisation tool built on top of public APIs from the U.S. Geological Survey (USGS) and the National Weather Service (NWS) . It surfaces real-time earthquake activity, volcano alert levels, active flood warnings, and live stream gauge readings through interactive charts and maps.

All data is sourced directly from US federal agencies and is subject to their data quality designations — some readings are provisional and may be revised before receiving final approval.

USGS API references

• USGS Earthquake Hazards — FDSN Event Web Service

  Query seismic events by time, location, magnitude, and depth. Powers QuakeWatch.

• USGS Volcano Hazards Program — VHP Status API

  Current alert levels and aviation colour codes for all monitored US volcanoes. Powers VolcanoWatch.

• National Weather Service — Alerts API

  Active CAP alerts including flood watches, warnings, and advisories by zone and area. Powers the flood alerts section of HydroWatch.

• USGS National Water Information System — Instantaneous Values API

  Real-time streamflow and gage height readings from hundreds of active USGS monitoring sites. Powers the stream gauge section of HydroWatch.

• USGS Data catalogue

  Full index of publicly available USGS datasets.