SALT19 USGS Earthquake Feed

x402

SALT19 USGS Earthquake Feed is a paid API for AI agents from api.salt19.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Retrieves recent USGS earthquake events filtered by time window, count limit, and minimum magnitude

Price / call$0.01

Seller volume →—

Success—

StatusUnknown

How this service works

Query recent USGS earthquake events by lookback window and minimum magnitude and return compact live event state.

Output

A JSON object containing a count of matching events and an array of earthquake records, each with a UTC timestamp, a human-readable place description, and a numeric magnitude value.

Example use cases

Daily seismic briefing for safety team

“Give me a daily summary of all earthquakes from the past 24 hours with a magnitude of 4.0 or above, up to 50 events, so I can review overnight seismic activity.”

Real-time alert check after news report

“I just heard there was a big earthquake — can you pull the last 2 hours of USGS data with no magnitude filter and show me up to 10 events to see what happened?”

Weekly high-magnitude event review

“Fetch the last 168 hours of USGS earthquake activity, limit to 20 results, and only include quakes magnitude 5.0 or greater so I can review the week's major seismic events.”

Technical details

Endpoint

POSThttps://api.salt19.com/v1/usgs-earthquakes

When to prefer

Choose this endpoint when you need a pay-per-call, agent-friendly USGS earthquake feed with built-in filtering by recency, count, and magnitude — ideal for AI agents that want structured JSON output without setting up direct USGS API access or managing rate limits. Prefer this over direct USGS GeoJSON feeds when operating inside an x402 micropayment workflow.

Side effects

Invalid hours value outside 1–168 range returns validation error
Limit exceeding 50 or below 1 returns validation error
min_magnitude outside 0–10 returns validation error
USGS upstream data unavailability may cause timeout or empty response
Malformed POST body returns 400 bad request

Input

Schema · Request body

Field	Type	Description
hours	integer
limit	integer
min_magnitude	number

Output

Schema · Response

{
  "type": "json",
  "example": {
    "count": 1,
    "events": [
      {
        "time": "2026-08-28T12:00:00.000Z",
        "place": "example",
        "magnitude": 3.1
      }
    ]
  }
}

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How this service works

Query recent USGS earthquake events by lookback window and minimum magnitude and return compact live event state.

Output

A JSON object containing a count of matching events and an array of earthquake records, each with a UTC timestamp, a human-readable place description, and a numeric magnitude value.

Example use cases

Daily seismic briefing for safety team

“Give me a daily summary of all earthquakes from the past 24 hours with a magnitude of 4.0 or above, up to 50 events, so I can review overnight seismic activity.”

Real-time alert check after news report

“I just heard there was a big earthquake — can you pull the last 2 hours of USGS data with no magnitude filter and show me up to 10 events to see what happened?”

Weekly high-magnitude event review

“Fetch the last 168 hours of USGS earthquake activity, limit to 20 results, and only include quakes magnitude 5.0 or greater so I can review the week's major seismic events.”

Technical details

Endpoint

POSThttps://api.salt19.com/v1/usgs-earthquakes

When to prefer

Side effects

Invalid hours value outside 1–168 range returns validation error
Limit exceeding 50 or below 1 returns validation error
min_magnitude outside 0–10 returns validation error
USGS upstream data unavailability may cause timeout or empty response
Malformed POST body returns 400 bad request

Input

Schema · Request body

Field	Type	Description
hours	integer
limit	integer
min_magnitude	number

Output

Schema · Response

{
  "type": "json",
  "example": {
    "count": 1,
    "events": [
      {
        "time": "2026-08-28T12:00:00.000Z",
        "place": "example",
        "magnitude": 3.1
      }
    ]
  }
}