USGS Volcanic Activity Tracker
Free USGS volcano monitoring and eruption alert API. Track active volcano status, alert levels, recent activity, and aviation color codes for 169 monitored US volcanoes. No subscription required.
Parameters
| Parameter | Type | Required | Description |
|---|---|---|---|
volcano_name |
string | ❌ | Specific volcano name (e.g., Kilauea, Rainier) |
state |
string | ❌ | US state or territory code |
alert_level |
string | ❌ | Filter: normal, advisory, watch, warning |
aviation_color |
string | ❌ | Filter: green, yellow, orange, red |
Example Response
{
"volcanoes_monitored": 169,
"active_alerts": [
{
"volcano": "Kilauea",
"state": "Hawaii",
"alert_level": "watch",
"aviation_color_code": "orange",
"activity_summary": "Ongoing eruption in Halema'uma'u crater. Lava lake active.",
"last_updated": "2024-04-08T14:32:00Z",
"hazards": ["lava flows", "volcanic gas", "ash plumes"]
}
],
"normal_status_count": 162,
"advisory_count": 5,
"watch_count": 2,
"warning_count": 0
}
Use Cases
- Aviation route risk assessment for airlines
- Insurance underwriting for Hawaii/Pacific properties
- Tourism industry operational risk monitoring
Access
# x402 endpoint — pay $0.01 USDC per call (Base mainnet)
POST https://x402.ntriq.co.kr/volcanic-activity
# Service catalog
curl https://x402.ntriq.co.kr/services
x402 micropayments — USDC on Base, gasless EIP-3009