Japan Volcano Warnings & Activity Data

Real-time Japan volcano warnings, eruption alerts, and activity reports scraped from the Japan Meteorological Agency (JMA). Covers all active volcanoes in Japan with alert levels, eruption warnings, and detailed activity information.

What Data Does This Actor Provide?

• Volcano Warnings: Current eruption warnings and alert levels for all monitored Japanese volcanoes (Sakurajima, Mt. Fuji, Mt. Aso, Kirishima, etc.)
• Activity Reports: Regular volcano activity status updates and observation summaries
• Alert Levels: JMA 5-level volcanic alert system (Level 1-3 + special warnings)
• Real-time Updates: Data sourced directly from JMA official APIs

Use Cases

• Disaster monitoring & early warning systems: Integrate real-time volcano alerts into emergency response platforms
• Academic research: Analyze historical eruption patterns and volcanic activity trends across Japan
• Travel safety applications: Provide travelers with current volcano alert levels near their destinations
• Insurance & risk assessment: Monitor volcanic risk levels for property and travel insurance models
• News & media monitoring: Automated tracking of volcano status changes for reporting

Input Parameters

Parameter	Type	Default	Description
data_type	string	"all"	"warnings", "activity", or "all"
volcano_name	string	—	Filter by volcano name (Japanese or partial match)
max_results	integer	100	Maximum results (1-5000)
log_level	string	"INFO"	DEBUG, INFO, WARNING, or ERROR

Output Schema

Each record in the dataset contains:

{
    "volcano_name": "桜島",
    "volcano_code": "506",
    "record_type": "warning",
    "alert_level": 3,
    "alert_level_text": "Level 3 - Mountain Entry Restriction",
    "title": "噴火警報・予報（対象火山）",
    "description": "レベル３（入山規制）",
    "issued_at": "2024-01-15T10:00:00+09:00",
    "event_id": "506",
    "serial": null,
    "condition": "Continuing",
    "affected_areas": null,
    "source": "Japan Meteorological Agency (JMA)"
}

Alert Level Reference

Level	Code	English	Japanese
1	11	Be Aware (Active Volcano)	活火山であることに留意
2	12	Crater Area Restriction	火口周辺規制
3	13	Mountain Entry Restriction	入山規制
—	22	Crater Area Danger	火口周辺危険
—	23	Mountain Entry Danger	入山危険
—	36	Surrounding Sea Area Warning	周辺海域警戒

Data Source

• Provider: Japan Meteorological Agency (JMA) / 気象庁
• License: CC BY 4.0 compatible (Japanese government open data)
• Endpoints:
  • Warnings: https://www.jma.go.jp/bosai/volcano/data/warning.json
  • Activity: https://www.jma.go.jp/bosai/volcano/data/info.json
• Update frequency: Updated by JMA as conditions change (typically daily for active volcanoes)