Active tsunami messages (NTWC + PTWC) API

Latest tsunami bulletins from both US NOAA tsunami warning centers — NTWC (Palmer, AK) and PTWC (Honolulu, HI) — parsed from their atom feeds into clean records with a derived threat level (WARNING/ADVISORY/WATCH/INFORMATION/CANCELLATION), message type, event location, issue time and bulletin link, plus an activeThreat flag. The MORE is merging both centers and classifying threat level from the bulletin type. Answers 'is there an active tsunami warning?', 'latest tsunami bulletin for the Pacific?', 'was a tsunami advisory cancelled?'.

Price$0.01per request

MethodPOST

Route/v1/science/tsunami-alerts

StatusLive

MIME typeapplication/json

Rate limit60/minute

Cache900s public

sciencetsunamihazardnoaantwcptwcwarningadvisoryoceannatural-disaster

API URLhttps://x402.hexl.dev/v1/science/tsunami-alerts

Integration docs

Example request

{}

Example response

{
  "activeThreat": false,
  "count": 2,
  "messages": [
    {
      "center": "NTWC (Palmer, AK)",
      "threatLevel": "INFORMATION",
      "messageType": "Tsunami Information Statement Number 1",
      "location": "40 miles SW of Eureka, California",
      "updated": "2026-06-03T12:51:07Z",
      "link": "https://www.tsunami.gov/events/PAAQ/2026/06/03/tg23g4/1/WEAK53/PAAQCAP.xml"
    },
    {
      "center": "PTWC (Honolulu, HI)",
      "threatLevel": "INFORMATION",
      "messageType": "TSUNAMI INFORMATION STATEMENT NUMBER 1",
      "location": "OFF THE KONA COAST OF THE BIG ISLAND",
      "updated": "2026-06-03T04:01:11Z",
      "link": "https://www.tsunami.gov/events/PHEB/2026/06/03/26154050/1/WEHW42/PHEBCAP.xml"
    }
  ]
}

Input schema

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

Output schema

{
  "type": "object",
  "additionalProperties": true
}