{"uid":"cap_UHBfxAzSl_yzBlIYi8wab","slug":"usgs-earthquake-hazard-historical-activity-lookup-538b4423","name":"USGS Earthquake Hazard & Historical Activity Lookup","description":"USGS earthquake hazard and historical activity lookup by street address or lat/lon coordinates.","url":"https://x402-service-production-e242.up.railway.app/earthquake-risk?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"type":"json","example":{"notes":["Hazard values are modeled/probabilistic, not a guarantee of future activity.","Site-specific soil/liquefaction risk is not covered by this data."],"query":{"lat":37.7749,"lon":-122.4194,"address":null},"hazard":{},"source":"USGS Earthquake Hazards Program (Seismic Design Maps + FDSN Event Web Service)","resolvedAddress":null,"historicalActivity":[]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.25","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.25/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.25","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.25","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_zdhjiEDa43Lj15NaraZFE","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.25","costPer":"request","priority":0,"asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns USGS probabilistic seismic hazard values and historical earthquake activity for a given US street address or lat/lon coordinates.","exampleAgentPrompt":"Can you pull the USGS earthquake hazard data and historical seismic activity for 415 Mission Street, San Francisco, CA? I want to know the probabilistic hazard values and any notable past earthquakes near that location.","exampleUseCases":[{"title":"Real estate seismic due diligence","prompt":"Before I make an offer on a house at 1234 Oak Avenue, Los Angeles, CA, can you look up the USGS earthquake hazard level and historical earthquake activity at that address so I know what seismic risk I'm taking on?"},{"title":"Insurance underwriting risk assessment","prompt":"I need to assess earthquake exposure for a commercial property at 38.5765° N, 121.4946° W — can you get me the USGS seismic hazard values and any recorded historical earthquake events near those coordinates?"},{"title":"Emergency planning for a new office site","prompt":"We're opening a new office at 333 S Grand Ave, Los Angeles, CA and need to understand seismic risk for our disaster preparedness plan — can you get the USGS earthquake hazard data and historical activity for that address?"}],"resultDescription":"Returns a JSON object containing: the query input (lat, lon, address), USGS probabilistic seismic hazard values, a list of historical earthquake events near the location, the resolved address, the data source (USGS Earthquake Hazards Program), and advisory notes (e.g. that values are modeled/probabilistic and soil/liquefaction risk is not covered).","failureModes":["Address cannot be geocoded — returns null or error for resolvedAddress","Coordinates fall outside US coverage area — USGS data may be unavailable","No historical earthquake events found for sparse or low-activity regions — historicalActivity returns empty array","Invalid input schema — missing or malformed lat/lon or address parameter","Payment failure — x402 micropayment not completed, endpoint returns 402 status","USGS upstream API unavailable — service may return error or partial data"],"whenToPreferThis":"Choose this endpoint when you need authoritative USGS probabilistic seismic hazard values alongside historical earthquake event data for a specific US address or coordinate pair — especially for real estate due diligence, insurance underwriting, or emergency planning. It combines two USGS data sources (Seismic Design Maps and FDSN Event Web Service) in a single call. Prefer it over generic hazard aggregators when you specifically need earthquake-focused USGS data; for a combined multi-hazard score (flood, wildfire, wind, etc.) consider the sibling insurance location risk score endpoint instead.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-28T06:37:30.762Z","isFirstParty":false,"canonicalSlug":"usgs-earthquake-hazard-historical-activity-lookup-538b4423"}