Global Hazards
Earthquake magnitude to radiated energy, seismic moment and TNT equivalent, with an optional comparison to a second magnitude.
OtherLiveeip155:8453Exactvia cdp
EarthquakeMagnitudeEnergyCalculator
Calls · 30d
1
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 4 snapshots so far.
$24.31
Verified settled volume
1,175 settlements proven x402 by their on-chain EIP-3009 marker.
$0.020
Listed price
As published in the catalog. Always read the live 402 before paying.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-10-20 21:01Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xb531320805C5BED1D46AEaDcF4F008FDF172DBDaThe wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Provider
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Live 402 challenge
Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.
{
"error": "Payment required",
"accepts": [
{
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"extra": {
"name": "USD Coin",
"version": "2"
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"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact",
"network": "base",
"mimeType": "application/json",
"resource": "https://global-hazards.x402tookit.com/quake-energy",
"description": "Earthquake magnitude to radiated energy, seismic moment and TNT equivalent, with an optional comparison to a second magnitude.",
"outputSchema": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"compareTo": 5,
"magnitude": 7
}
},
"output": {
"asOf": "2026-10-11T08:35:42.216Z",
"source": "computed locally",
"reasons": [
"Each whole magnitude step is 10x the ground-motion amplitude and about 31.6x the energy."
],
"summary": "M7 releases about 2.00e+15 J, roughly 477 kilotons of TNT or 31.7 Hiroshima-size bombs. Versus M5: 1000x energy, 100x amplitude.",
"verdict": "COMPUTED",
"degraded": false,
"formulas": "Radiated energy log10 E(J) = 1.5 M + 4.8 (Gutenberg-Richter); seismic moment M0(N m) = 10^(1.5 M + 9.1) (Hanks and Kanamori); 1 ton TNT = 4.184e9 J; Hiroshima taken as 6.3e13 J (about 15 kt).",
"magnitude": 7,
"comparison": {
"note": "M7 is 1000x the energy of M5.",
"energyRatio": 1000,
"amplitudeRatio": 100,
"otherMagnitude": 5
},
"disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
"notChecked": [
"real events: radiated energy from the magnitude relation is an average, individual earthquakes vary by a factor of several",
"damage: it depends on depth, distance, ground and construction, not on energy alone"
],
"energyJoules": 2000000000000000,
"energyTntTons": 477000,
"energyKilotonsTnt": 477,
"hiroshimaEquivalents": 31.7,
"seismicMomentNewtonMetres": 39800000000000000000
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"description": "Earthquake magnitude to radiated energy, seismic moment and TNT equivalent, with an optional comparison to a second magnitude.",
"outputSchema": {
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"method": "GET",
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"output": {
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"source": "computed locally",
"reasons": [
"Each whole magnitude step is 10x the ground-motion amplitude and about 31.6x the energy."
],
"summary": "M7 releases about 2.00e+15 J, roughly 477 kilotons of TNT or 31.7 Hiroshima-size bombs. Versus M5: 1000x energy, 100x amplitude.",
"verdict": "COMPUTED",
"degraded": false,
"formulas": "Radiated energy log10 E(J) = 1.5 M + 4.8 (Gutenberg-Richter); seismic moment M0(N m) = 10^(1.5 M + 9.1) (Hanks and Kanamori); 1 ton TNT = 4.184e9 J; Hiroshima taken as 6.3e13 J (about 15 kt).",
"magnitude": 7,
"comparison": {
"note": "M7 is 1000x the energy of M5.",
"energyRatio": 1000,
"amplitudeRatio": 100,
"otherMagnitude": 5
},
"disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
"notChecked": [
"real events: radiated energy from the magnitude relation is an average, individual earthquakes vary by a factor of several",
"damage: it depends on depth, distance, ground and construction, not on energy alone"
],
"energyJoules": 2000000000000000,
"energyTntTons": 477000,
"energyKilotonsTnt": 477,
"hiroshimaEquivalents": 31.7,
"seismicMomentNewtonMetres": 39800000000000000000
}
},
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"extra": {
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"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
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"description": "Earthquake magnitude to radiated energy, seismic moment and TNT equivalent, with an optional comparison to a second magnitude.",
"outputSchema": {
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"type": "http",
"method": "GET",
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"compareTo": 5,
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"output": {
"asOf": "2026-10-11T08:35:42.216Z",
"source": "computed locally",
"reasons": [
"Each whole magnitude step is 10x the ground-motion amplitude and about 31.6x the energy."
],
"summary": "M7 releases about 2.00e+15 J, roughly 477 kilotons of TNT or 31.7 Hiroshima-size bombs. Versus M5: 1000x energy, 100x amplitude.",
"verdict": "COMPUTED",
"degraded": false,
"formulas": "Radiated energy log10 E(J) = 1.5 M + 4.8 (Gutenberg-Richter); seismic moment M0(N m) = 10^(1.5 M + 9.1) (Hanks and Kanamori); 1 ton TNT = 4.184e9 J; Hiroshima taken as 6.3e13 J (about 15 kt).",
"magnitude": 7,
"comparison": {
"note": "M7 is 1000x the energy of M5.",
"energyRatio": 1000,
"amplitudeRatio": 100,
"otherMagnitude": 5
},
"disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
"notChecked": [
"real events: radiated energy from the magnitude relation is an average, individual earthquakes vary by a factor of several",
"damage: it depends on depth, distance, ground and construction, not on energy alone"
],
"energyJoules": 2000000000000000,
"energyTntTons": 477000,
"energyKilotonsTnt": 477,
"hiroshimaEquivalents": 31.7,
"seismicMomentNewtonMetres": 39800000000000000000
}
},
"maxAmountRequired": "20000",
"maxTimeoutSeconds": 300
}
],
"x402Version": 1,
"alsoAvailable": {
"llms": "https://global-hazards.x402tookit.com/llms.txt",
"catalog": "https://global-hazards.x402tookit.com/catalog",
"message": "Global Hazards has 10 pay-per-call endpoints (Worldwide earthquakes, storms, volcanoes and other natural hazard events from keyless public feeds, plus quake and seismic-wave calculators.), from $0.02 a call. See the full menu and send your agents our way.",
"openapi": "https://global-hazards.x402tookit.com/openapi.json",
"related": [
{
"url": "https://global-hazards.x402tookit.com/seismic-wave-times",
"path": "/seismic-wave-times",
"what": "Estimate P and S wave arrival times and the S-P gap from an epicentral distance or two co…",
"price": "$0.02"
},
{
"url": "https://global-hazards.x402tookit.com/mercalli-scale",
"path": "/mercalli-scale",
"what": "Modified Mercalli intensity I to XII: what is felt and the typical damage, or the intensi…",
"price": "$0.02"
},
{
"url": "https://global-hazards.x402tookit.com/quakes-near",
"path": "/quakes-near",
"what": "Earthquakes within a radius of any coordinate worldwide: nearest, largest, counts by size…",
"price": "$0.02"
}
]
}
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.02USDC≈ $0.02 USD
on Base · exact scheme
Pay 0.02 USDC on Base to 0xb531…2DBDa. The signed payment is good for 5 minutes.
- Paid to
- 0xb531…2DBDa
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 20000 smallest units
20000units
on solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · exact scheme
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- DUPiup…eEm8s
- Token contract
- EPjFWd…TDt1v
- Payment window
- 5 minutes
20000units
on Polygon · exact scheme
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- 0xb531…2DBDa
- Token contract
- 0x3c49…c3359
- Payment window
- 5 minutes
20000units
on Arbitrum · exact scheme
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- 0xb531…2DBDa
- Token contract
- 0xaf88…e5831
- Payment window
- 5 minutes
The catalog’s raw entry
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"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"amount": "20000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
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{
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{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"compareTo": 5,
"magnitude": 7
}
},
"output": {
"type": "json",
"example": {
"asOf": "2026-10-11T08:35:42.216Z",
"source": "computed locally",
"reasons": [
"Each whole magnitude step is 10x the ground-motion amplitude and about 31.6x the energy."
],
"summary": "M7 releases about 2.00e+15 J, roughly 477 kilotons of TNT or 31.7 Hiroshima-size bombs. Versus M5: 1000x energy, 100x amplitude.",
"verdict": "COMPUTED",
"degraded": false,
"formulas": "Radiated energy log10 E(J) = 1.5 M + 4.8 (Gutenberg-Richter); seismic moment M0(N m) = 10^(1.5 M + 9.1) (Hanks and Kanamori); 1 ton TNT = 4.184e9 J; Hiroshima taken as 6.3e13 J (about 15 kt).",
"magnitude": 7,
"comparison": {
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"energyRatio": 1000,
"amplitudeRatio": 100,
"otherMagnitude": 5
},
"disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
"notChecked": [
"real events: radiated energy from the magnitude relation is an average, individual earthquakes vary by a factor of several",
"damage: it depends on depth, distance, ground and construction, not on energy alone"
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"energyJoules": 2000000000000000,
"energyTntTons": 477000,
"energyKilotonsTnt": 477,
"hiroshimaEquivalents": 31.7,
"seismicMomentNewtonMetres": 39800000000000000000
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"queryParams": {
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"properties": {
"compareTo": {
"type": "number",
"description": "Second magnitude to compare against, -2 to 10"
},
"magnitude": {
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"description": "Moment magnitude, -2 to 10"
}
}
}
},
"additionalProperties": false
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"energyJoules": {
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},
"energyTntTons": {
"type": [
"null",
"number"
]
},
"energyKilotonsTnt": {
"type": [
"null",
"number"
]
},
"hiroshimaEquivalents": {
"type": [
"null",
"number"
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},
"seismicMomentNewtonMetres": {
"type": [
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"number"
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}
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}
}
}Provenance
- Seen in the source catalog
- 2026-10-20 21:01Z
- Last indexed by Roundhouse
- 2026-10-22 19:30Z
- Last enriched (probe, favicon, geo)
- 2026-10-20 21:45Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 402
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 4 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service Global Hazards and tell me whether it is worth paying: what a call costs, whether the endpoint answered when last probed, and what its payment record actually shows. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=Global%20Hazards' curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>' Then call it: read the price from the live 402 at https://global-hazards.x402tookit.com/quake-energy, never from a cached figure, and pay with an x402 client. The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Either pay over x402 (mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.