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USGS Earthquake Regional Activity & Impact Gauge
x402
USGS Earthquake Regional Activity & Impact Gauge is a paid API for AI agents from aeml-x402.zeabur.app, paid per call via x402, $0.25/call, status unknown (last checked 2026-09-14).
Returns a causal-chain snapshot of seismic activity for a named fault/seismic zone, combining upstream swarm signals (USGS event rates), current activity metrics, and downstream impact assessments (ShakeMap MMI, PAGER, NOAA/PTWC tsunami).
Price / call$0.25
Success—
StatusUnknown
How this service works
[3-LEG] Seismic activity chain, one seismic zone (?entity=california-san-andreas): leading swarm rate, USGS micro-event rate rising - DESCRIPTIVE and explicitly not a prediction -> current current max magnitude and count -> realized felt and impact reports (confirmation gate). A sequential chain, not one reading - confidence = how many legs are lit, in order. Sources: USGS. Descriptive only, never a forecast or advice. No data -> 422 no_charge, not billed.
Output
A structured multi-leg JSON object containing: upstream swarm rate signal (USGS small-event rate trend), current activity legs (max magnitude, event count, significance, depth, tectonic context, tsunami tendency), and downstream impact legs (ShakeMap MMI, PAGER population exposure, NOAA/PTWC tsunami status, aftershock risk). Also includes a cross-line narrative, provenance/data lineage with freshness status, a verifiable Ed25519-signed citation, decision points for re-running with alternate entity tags, and honest disclosure of data grade (screening-level, not decision-grade) and scope (observational, not predictive).
Example use cases
Supply chain disruption screening after quake
“Our distribution center is near the New Madrid seismic zone — can you pull the current earthquake activity gauge for that region and tell me if swarm rates are elevated, what the recent max magnitude has been, and whether PAGER shows significant population exposure?”
Parametric insurance trigger monitoring
“I need to check the seismic activity gauge for the Chile subduction zone right now — get me the current event count, maximum magnitude, ShakeMap MMI, and aftershock risk so I can evaluate whether our parametric policy trigger thresholds have been crossed.”
Humanitarian logistics pre-positioning assessment
“Before we pre-position relief supplies, can you check the earthquake impact gauge for the Anatolian fault — specifically the PAGER population exposure, tsunami tendency, focal depth, and the cross-line narrative explaining how these signals interact?”
Technical details
Endpoint
GEThttps://aeml-x402.zeabur.app/gauge/earthquake-regionWhen to prefer
Choose this endpoint when you need a rapid, source-attributed, multi-signal seismic situational picture for a named fault or seismic zone — especially for supply-chain screening, parametric insurance trigger evaluation, infrastructure risk triage, or humanitarian pre-positioning. Prefer it over raw USGS API calls when you want pre-joined upstream (swarm rates) + downstream (ShakeMap, PAGER, tsunami) signals with provenance hashes and honest data-grade disclosure in a single call. Not suitable as emergency/evacuation/safety guidance or as a predictive forecast.
Side effects
- Unknown or unsupported entity key returns an error or empty legs
- USGS data source temporarily unavailable causes stale or missing legs
- Ambiguous entity string (e.g. generic region name) may match unexpected zone
- Data marked as 'stale' if USGS feed has not updated within expected cadence
- No tsunami data returned if NOAA/PTWC has no relevant active alerts
- ShakeMap/PAGER legs may be absent if no significant recent event in zone
- Payment of 0.1 USDC via x402 required; missing or failed payment returns 402
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | object | |
| output | object |
Output
Schema · Response
{
"type": "json"
}Tags
x402
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