JMA volcano warnings and eruption forecasts — search active Japanese volcanoes from your AI agent.
For tourism, aviation, insurers and research agents. Free: latest 5. Pro: search and fuller list.
latest_volcano, no sign-up. Pro: ¥1200/month — all tools, unlimited use. Cancel anytime (one click on the success page, or email).latest_volcano (free) — FREE. Latest JMA volcano warning entries (newest 5).volcano_search (Pro) — PRO. Search volcano bulletins by keyword (volcano name / level text).all_warnings (Pro) — PRO. Full JMA volcano warning JSON list (may be large).latest_volcano {}
{
"count": 14,
"latest_5": [
{
"reportDatetime": "2026-10-16T10:00:00+09:00",
"eventId": "108",
"areas": [
"0145900",
"0146000",
"0163500"
],
"volcanoInfos": [
{
"type": "噴火警報・予報（対象火山）",
"items": [
{
"name": "レベル２（火口周辺規制）",
"code": "12",
"lastCode": "13",
"condition": "引下げ",
"areas": [
{
"name": "十勝岳",
"code": "108"
}
]
}
]
},
{
"type": "噴火警報・予報（対象市町村等）",
"items": [
{
"name": "火口周辺警報",
"code": "02",
"lastCode": "02",
"condition": "切替",
"areas": [
{
"name": "北海道美瑛町",
"code": "0145900"
},
{
"name": "北海道上富良野町",
"code": "0146000"
},
{
"name": "北海道新得町",
"code": "0163500"
}
]
}
]
},
{
"type": "噴火警報・予報（対象市町村の防災対応等）",
"items": [
{
"name": "火口周辺警報：入山規制等",
"code": "43",
"lastCode": "43",
"condition": "継続",
"areas": [
{
"name": "北海道美瑛町",
"code": "0145900"
},
{
"name": "北海道上富良野町",
"code": "0146000"
},
{
"name": "北海道新得町",
"code": "0163500"
}
]
},
{
"name": "活火山であることに留意",
"code": "45",
"lastCode": "43",
"condition": "解除",
"areas": [
{
"name": "北海道富良野市",
"code": "0122900"
},
{
"name": "北海道南富良野町",
"code": "0146200"
}
]
},
{
"name": "活火山であることに留意",
"code": "45",
"lastCode": "45",
"condition": "継続",
"areas": [
{
"name": "北海道中富良野町",
"code": "0146100"
}
]
}
]
}
],
"within24": true
},
{
"reportDatetime": "2026-10-08T11:00:00+09:00",
"eventId": "323",
"areas": [
"1340000"
],
"volcanoInfos": [
{
"type": "噴火警報・予報（対象火山）",
"items": [
{
"name": "活火山であることに留意（海底火山）",
"code": "35",
"lastCode": "36",
"condition": "引下げ",
"areas": [
{
"name": "ベヨネース列岩",
"code": "323"
}
]
}
]
},
{
"type": "噴火警報・予報（対象市町村等）",
"items": [
{
"name": "噴火予報：警報解除",
"code": "04",
"lastCode": "03",
"condition": "解除",
"areas": [
{
"name": "東京都八丈支庁",
"code": "1340000"
}
]
}
]
},
{
"type": "噴火警報・予報（対象市町村の防災対応等）",
"items": [
{
"name": "活火山であることに留意",
"code": "45",
"lastCode": "44",
"condition": "解除",
"areas": [
{
"name": "東京都八丈支庁",
"code": "1340000"
}
]
}
]
}
]
},
{
"reportDatetime": "2026-10-02T07:30:00+09:00",
"eventId": "113",
"areas": [
"0133700",
"0134300",
"0134500"
],
"volcanoInfos": [
{
"type": "噴火警報・予報（対象火山）",
"items": [
{
"name": "レベル２（火口周辺規制）",
"code": "12",
"lastCode": "11",
"condition": "引上げ",
"areas": [
{
"name": "北海道駒ヶ岳",
"code": "113"
}
]
}
]
},
{
"type": "噴火警報・予報（対象市町村等）",
"items": [
{
"name": "火口周辺警報",
"code": "02",
"lastCode": "05",
"condition": "発表",
"areas": [
{
"name": "北海道七飯町",
"code": "0133700"
},
{
"name": "北海道鹿部町",
"code": "0134300"
},
{
"name": "北海道森町",
"code": "0134500"
}
]
}
]
},
{
"type": "噴火警報・予報（対象市町村の防災対応等）",
"items": [
{
"name": "火口周辺警報：入山規制等",
"code": "43",
"lastCode": "45",
"condition": "発表",
"areas": [
{
"name": "北海道七飯町",
"code": "0133700"
},
{
"name": "北海道鹿部町",
"code": "0134300"
},
{
"name": "北海道森町",
"code": "0134500"
}
]
}
]
}
]
},
{
"reportDatetime": "2026-09-28T11:00:00+09:00",
"eventId": "509",
"areas": [
"4650500"
],
"volcanoInfos": [
{
"type": "噴火警報・予報（対象火山）",
"items": [
{
"name": "レベル１（活火山であることに留意）",
"code": "11",
"lastCode": "12",
"condition": "引下げ",
"areas": [
{
"name": "口永良部島",
"code": "509"
}
]
}
]
},
{
"type": "噴火警報・予報（対象市町村等）",
"items": [
{
"name": "噴火予報：警報解除",
"code": "04",
"lastCode": "02",
"condition": "解除",
"areas": [
{
"name": "鹿児島県屋久島町",
"code": "4650500"
}
]
}
]
},
{
"type": "噴火警報・予報（対象市町村の防災対応等）",
"items": [
{
"name": "活火山であることに留意",
"code": "45",
"lastCode": "43",
"condition": "解除",
"areas": [
{
"name": "鹿児島県屋久島町",
"code": "4650500"
}
]
}
]
}
]
},
{
"reportDatetime": "2026-09-08T11:00:00+09:00",
"eventId": "326",
"areas": [
"1342100"
],
"volcanoInfos": [
{
"type": "噴火警報・予報（対象火山）",
"items": [
{
"name": "火口周辺危険",
"code": "22",
"lastCode": "23",
"condition": "引下げ",
"areas": [
{
"name": "西之島",
"code": "326"
}
]
}
]
},
{
"type": "噴火警報・予報（対象市町村等）",
"items": [
{
"name": "火口周辺警報",
"code": "02",
"lastCode": "02",
"condition": "切替",
"areas": [
{
"name": "東京都小笠原村",
"code": "1342100"
}
]
}
]
},
{
"type": "噴火警報・予報（対象市町村の防災対応等）",
"items": [
{
"name": "火口周辺警報：火口周辺警戒",
"code": "49",
"lastCode": "49",
"condition": "継続",
"areas": [
{
"name": "東京都小笠原村",
"code": "1342100"
}
]
}
]
}
]
}
],
"pro": "Full list and keyword search across volcano bulletins: https://jp-volcano-alerts-mcp.donniertf.workers.dev/buy",
"disclaimer": "Volcano warnings and forecasts from the Japan Meteorological Agency. For evacuation follow JMA and local governments."
}
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Volcano warnings and forecasts from the Japan Meteorological Agency. For evacuation follow JMA and local governments.
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