{"uid":"cap_rJh3M8CR3yA8_yWmR9MZL","slug":"global-hazards-mercalli-intensity-scale-lookup-a672731e","name":"Global Hazards Mercalli Intensity Scale Lookup","description":"Modified Mercalli intensity I to XII: what is felt and the typical damage, or the intensity band for a peak ground acceleration.","url":"https://global-hazards.x402tookit.com/mercalli-scale?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":[],"properties":{"intensity":{"type":"string","description":"Intensity as 1 to 12 or roman I to XII (omit to list all levels)"},"pgaPercentG":{"type":"number","description":"Peak ground acceleration in percent of g, to get the instrumental intensity band"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"asOf":{"type":["null","string"]},"name":{"type":["null","string"]},"level":{"type":["null","number"]},"roman":{"type":["null","string"]},"source":{"type":["null","string"]},"reasons":{"type":["array","null"],"items":{"type":"string"}},"shaking":{"type":["null","string"]},"summary":{"type":["null","string"]},"verdict":{"type":["null","string"]},"degraded":{"type":["boolean","null"]},"disclaimer":{"type":["null","string"]},"notChecked":{"type":["array","null"],"items":{"type":"string"}},"typicalDamage":{"type":["null","string"]}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","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":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_KyMA5-dEIxKLXYW_3FFdV","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns Modified Mercalli Intensity (MMI) scale descriptions including what is felt, typical damage, and shaking characteristics for a given intensity level (I–XII), or maps a peak ground acceleration (PGA) value to its corresponding intensity band.","exampleAgentPrompt":"What does Modified Mercalli intensity VIII mean in terms of what people feel and the typical damage expected? Also, what intensity band corresponds to a peak ground acceleration of 40 percent g?","exampleUseCases":[{"title":"Earthquake damage briefing for emergency planners","prompt":"We just had an earthquake and USGS says the max intensity was MMI VII — can you tell me exactly what that means in terms of what people felt and what kind of structural damage to expect?"},{"title":"PGA to intensity conversion for engineering report","prompt":"I have a site with a design peak ground acceleration of 65 percent g — what Modified Mercalli intensity band does that correspond to?"},{"title":"Public education on Mercalli scale levels","prompt":"Can you give me the full list of all Modified Mercalli intensity levels from I to XII with descriptions of what each level feels like and what damage it causes?"}],"resultDescription":"Returns a structured object with the numeric intensity level, Roman numeral (e.g. VIII), shaking description, summary of what people feel, typical damage description, and a verdict. When queried by PGA, returns the matching instrumental intensity band. Optionally includes source, disclaimer, and data freshness fields.","failureModes":["Invalid intensity value outside 1–12 range returns an error","Non-numeric string passed as pgaPercentG causes a validation error","Omitting both intensity and pgaPercentG returns all levels (may return large payload)","Service degraded flag set to true indicates partial or cached data"],"whenToPreferThis":"Use this endpoint when you need authoritative human-readable descriptions of Modified Mercalli intensity levels — what people feel, structural damage, and shaking characteristics — or when you need to convert a peak ground acceleration value to an instrumental intensity band. Prefer this over generic earthquake magnitude lookups when the user needs intensity-based impact descriptions rather than raw seismic energy metrics.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-29T13:12:40.381Z","isFirstParty":false,"canonicalSlug":"global-hazards-mercalli-intensity-scale-lookup-a672731e"}