Japan Tsunami Alerts

JMA tsunami forecasts and warnings for the Japanese coast — live bulletins for your AI agent.

For maritime, coastal logistics, tourism and emergency-aware agents. Free: latest 5. Pro: search and active-only views.

Tools

• latest_tsunami (free) — FREE. Latest JMA tsunami forecasts/warnings (newest 5).
• tsunami_search (Pro) — PRO. Up to 50 recent tsunami bulletins; optional keyword filter on title/office.
• active_only (Pro) — PRO. Bulletins that look like current warnings/advisories (filters cancelled/cleared when labelled).

Live free example

latest_tsunami {}

{
  "count": 2,
  "latest_5": [
    {
      "ctt": "20261010033742",
      "eid": "20261010025608",
      "rdt": "2026-10-10T03:37:00+09:00",
      "ttl": "津波予報",
      "ift": "発表",
      "ser": 0,
      "at": "2026-10-10T02:56:00+09:00",
      "anm": "中米",
      "acd": "945",
      "cod": "+07.5-080.8/",
      "mag": "8.0",
      "kind": [
        {
          "code": "100",
          "kind": "津波予報（若干の海面変動）"
        },
        {
          "code": "101",
          "kind": "津波予報（若干の海面変動）"
        },
        {
          "code": "102",
          "kind": "津波予報（若干の海面変動）"
        },
        {
          "code": "201",
          "kind": "津波予報（若干の海面変動）"
        },
        {
          "code": "210",
          "kind": "津波予報（若干の海面変動）"
        },
        {
          "code": "220",
          "kind": "津波予報（若干の海面変動）"
        },
        {
          "code": "250",
          "kind": "津波予報（若干の海面変動）"
        },
        {
          "code": "300",
          "kind": "津波予報（若干の海面変動）"
        },
        {
          "code": "310",
          "kind": "津波予報（若干の海面変動）"
        },
        {
          "code": "311",
          "kind": "津波予報（若干の海面変動）"
        },
        {
          "code": "320",
          "kind": "津波予報（若干の海面変動）"
        },
        {
          "code": "321",
          "kind": "津波予報（若干の海面変動）"
        },
        {
          "code": "330",
          "kind": "津波予報（若干の海面変動）"
        },
        {
          "code": "380",
          "kind": "津波予報（若干の海面変動）"
        },
        {
          "code": "390",
          "kind": "津波予報（若干の海面変動）"
        },
        {
          "code": "391",
          "kind": "津波予報（若干の海面変動）"
        },
        {
          "code": "400",
          "kind": "津波予報（若干の海面変動）"
        },
        {
          "code": "530",
          "kind": "津波予報（若干の海面変動）"
        },
        {
          "code": "580",
          "kind": "津波予報（若干の海面変動）"
        },
        {
          "code": "600",
          "kind": "津波予報（若干の海面変動）"
        },
        {
          "code": "610",
          "kind": "津波予報（若干の海面変動）"
        },
        {
          "code": "760",
          "kind": "津波予報（若干の海面変動）"
        },
        {
          "code": "770",
          "kind": "津波予報（若干の海面変動）"
        },
        {
          "code": "771",
          "kind": "津波予報（若干の海面変動）"
        },
        {
          "code": "772",
          "kind": "津波予報（若干の海面変動）"
        },
        {
          "code": "800",
          "kind": "津波予報（若干の海面変動）"
        },
        {
          "code": "801",
          "kind": "津波予報（若干の海面変動）"
        },
        {
          "code": "802",
          "kind": "津波予報（若干の海面変動）"
        }
      ],
      "json": "20261010033742_20261010025608_VTSE41_0.json",
      "en_ttl": "Tsunami Forecast",
      "en_anm": "Central America"
    },
    {
      "ctt": "20260930140817",
      "eid": "20260930140037",
      "rdt": "2026-09-30T14:08:00+09:00",
      "ttl": "津波予報",
      "ift": "発表",
      "ser": 0,
      "at": "2026-09-30T14:00:00+09:00",
      "anm": "与那国島近海",
      "acd": "857",
      "cod": "+23.8+122.9-10000/",
      "mag": "6.0",
      "kind": [
        {
          "code": "802",
          "kind": "津波予報（若干の海面変動）"
        }
      ],
      "json": "20260930140817_20260930140037_VTSE41_0.json",
      "en_ttl": "Tsunami Forecast",
      "en_anm": "Adjacent Sea of Yonagunijima Island"
    }
  ],
  "pro": "Full tsunami bulletin list and watch-only filter: https://jp-tsunami-alerts-mcp.donniertf.workers.dev/buy",
  "disclaimer": "Tsunami forecasts and warnings from the Japan Meteorological Agency bosai feed. For evacuation follow JMA, NHK and local government alerts."
}

Connect (MCP)

Add https://jp-tsunami-alerts-mcp.donniertf.workers.dev/mcp to Claude, Cursor or any MCP client (Streamable HTTP, no login for the free tier). Subscribers pass access_token or Authorization: Bearer.

Important

Tsunami forecasts and warnings from the Japan Meteorological Agency bosai feed. For evacuation follow JMA, NHK and local government alerts.

Data sources & licences

• Japan Meteorological Agency bosai tsunami feed

For AI agents

llms.txt · server card · pricing.json · POST /checkout → checkout URL · GET /token?session_id= → access token.

More Japan data MCPs

Save with Japan bundles: jp-mcp-bundles · GitHub hub.

Contact & cancelling

Questions, refunds or cancelling: dmorrisonwebdesign@gmail.com. Run by Donnie Morrison, UK. Payments by Stripe; we never see card details.