USGS Global Earthquake, Tsunami & Seismic Hazards API

An autonomous, ultra-fast Apify Actor providing real-time access to the United States Geological Survey (USGS) Global Earthquake and Tsunami Hazard Feeds.

Filter seismic events by Richter magnitude, GPS circular radius (latitude/longitude/distance), depth, time window, and tsunami alert flags.

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🌋 Features

• Real-Time Global Coverage: Pulls authoritative seismic records from the USGS National Earthquake Information Center (NEIC).
• Radius Search by GPS: Locate seismic activity within X kilometers of any city, critical infrastructure, data center, or property portfolio.
• Tsunami Warning Alerts: Immediate flagging of seismic events that triggered official Pacific / NOAA tsunami warnings.
• Detailed GeoJSON Metrics: Modified Mercalli Intensity (MMI), depth in kilometers, PAGER impact significance index, and felt community reports.
• Zero Overhead: Direct official government API with sub-second latency (< 200ms) and zero third-party dependencies.

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📥 Input Parameters

Field	Type	Default	Description
minMagnitude	Number	3.0	Minimum Richter magnitude (e.g. 2.5, 4.5, 6.0).
maxMagnitude	Number	null	Optional upper bound magnitude.
timeWindow	String	"past_24_hours"	Preset window: past_hour, past_24_hours, past_7_days, past_30_days.
tsunamiOnly	Boolean	false	Only return quakes with active tsunami warnings.
latitude	Number	null	Center latitude for radius search (e.g. 35.6762).
longitude	Number	null	Center longitude for radius search (e.g. 139.6503).
maxRadiusKm	Integer	500	Search radius in kilometers.
maxResults	Integer	50	Maximum results to return (1 to 500).

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📤 Output Format

{
  "id": "us6000pkqw",
  "title": "M 5.8 - 14 km SSE of Hualien City, Taiwan",
  "magnitude": 5.8,
  "magnitudeType": "mww",
  "place": "14 km SSE of Hualien City, Taiwan",
  "eventTimeIso": "2026-08-22T08:15:30.000Z",
  "updatedTimeIso": "2026-08-22T09:00:00.000Z",
  "tsunamiAlert": false,
  "significance": 518,
  "alertLevel": "green",
  "mmi": 5.4,
  "feltReports": 124,
  "status": "reviewed",
  "coordinates": {
    "latitude": 23.87,
    "longitude": 121.65
  },
  "depthKm": 10.0,
  "usgsEventUrl": "https://earthquake.usgs.gov/earthquakes/eventpage/us6000pkqw"
}

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🤖 Python & Node.js Integration

from apify_client import ApifyClient

client = ApifyClient("YOUR_APIFY_TOKEN")
run = client.actor("Richigga/usgs-earthquake-seismic-hazards-monitor").call(
    run_input={
        "minMagnitude": 4.5,
        "timeWindow": "past_7_days",
        "latitude": 34.0522,
        "longitude": -118.2437,
        "maxRadiusKm": 1000
    }
)

for item in client.dataset(run["defaultDatasetId"]).iterate_items():
    print(f"[{item['magnitude']}] {item['place']} (Depth: {item['depthKm']}km)")

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💰 Unit Economics & Performance

• Pricing Model: Pay Per Event / Request ($0.002 per run)
• External Cost: $0.00 (Official USGS NEIC public feeds)
• Execution Speed: < 200ms
• Gross Margin: > 98%

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📄 License

Apache-2.0. Public domain US Government open data.