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USGS Earthquake Hazards Program vs USGS Water Services

Same instrument, two spec sheets — measured, not claimed.

APIUSGS Earthquake Hazards ProgramHEALTHY91USGS Water ServicesHEALTHY81
Uptime · 30d
Uptime · 90d99.02%87.3%
Uptime · 30d100%83.3%
P50 · ms549828
P95 · ms16384855
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useyesyes
Data licensePublic domain (U.S. Government work)Public domain (U.S. Government work)
Free tierFree — no API key requiredFree — no API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

USGS Earthquake Hazards Program vs USGS Water Services: common questions

Which is more reliable, USGS Earthquake Hazards Program or USGS Water Services?

On our scheduled checks, USGS Earthquake Hazards Program leads on measured uptime — USGS Earthquake Hazards Program at 99.02% versus USGS Water Services at 87.3% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, USGS Earthquake Hazards Program or USGS Water Services?

USGS Earthquake Hazards Program has the lower median latency in our checks — USGS Earthquake Hazards Program responds in 549 ms versus USGS Water Services at 828 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do USGS Earthquake Hazards Program and USGS Water Services need an API key?

Neither needs a paid key — USGS Earthquake Hazards Program is callable with no signup, and USGS Water Services is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call USGS Earthquake Hazards Program and USGS Water Services from the browser?

Yes — both USGS Earthquake Hazards Program and USGS Water Services send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are USGS Earthquake Hazards Program and USGS Water Services free for commercial use?

USGS Earthquake Hazards Program allows commercial use on its free tier, and USGS Water Services allows commercial use on its free tier. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.