USGS NEIC — Earthquake Hazards Program Real-Time Feed

Real-time earthquake catalog updated within ~1 minute of NEIC location. GeoJSON feeds at multiple magnitude / time-window cuts (significant, M4.5+, M2.5+, all). Anchor source for seismic-trigger parametric covers and rapid-damage-assessment recipes.

Provider	USGS NEIC
Delivery mode	stream
CNR score	88
Cadence	PT1M
Origin	https://earthquake.usgs.gov/earthquakes/feed/