GeologyCloud active faults (GeoJSON)
Active-fault vectors for Taiwan (WGS84 GeoJSON) from GSMMA GeologyCloud. Unbounded API responses are capped at about 100 features; complete coverage is obtained with bbox queries (144 line segments in this check, including the official 36 active faults plus a branch of the Sanyi Fault). Attributes still include Class I / Class II and observed vs inferred or concealed. Note that the official October 2025 revision of the Taiwan fault map no longer uses Class I / Class II and calls all listed traces active faults; questionable active faults were dropped from the 2012 map onward. GeologyCloud describes this as four-star open data; attribution is required. Map: https://www.geologycloud.tw/map/ActiveFault . Terms: https://www.geologycloud.tw/geohome/Introduction
Original sources and license
Data source: Geological Survey and Mining Management Agency, Ministry of Economic Affairs
Original dataset page ↗ · External website
Source download link ↗ · External website
License：GeologyCloud four-star open data (attribution required) ↗ · Open Government Data License 1.0 ↗
Original source metadata
- Provider
- 經濟部地質調查及礦業管理中心
- Source category
- 生活安全及品質
- Description
- 經濟部地質調查及礦業管理中心「地質雲」提供的臺灣活動斷層向量（WGS84 GeoJSON）。官方資料頁與 /api/v1 不帶範圍時約只回 100 筆；以 bbox 參數分區擷取可得完整圖層（本次檢核為 144 筆線段，含官方 36 條活動斷層及三義斷層之分支斷層）。屬性仍有第一類／第二類（觀察或推測／隱伏）。請注意：地礦中心 2025 年 10 月修訂之臺灣斷層分布圖已不再區分第一類、第二類，一律稱為活動斷層；存疑性活動斷層自 2012 年圖起已不再使用。地質雲介紹頁載明此資料以四星級開放資料供應，使用時應註明出處。圖臺：https://www.geologycloud.tw/map/ActiveFault 。授權說明：https://www.geologycloud.tw/geohome/Introduction
- License
- 地質雲四星級開放資料（使用時應註明出處）
- Name
- 地質雲 活動斷層（GeoJSON）
- Coverage
- 臺灣
- Update frequency
- 不定期更新
- Spatial coverage
- Taiwan
- WGS84 bbox
- Not provided
- Coverage basis
- Not provided
- Agency
- Geological Survey and Mining Management Agency, Ministry of Economic Affairs
- Theme
- Hazards
- Format
- GeoJSON
- Coordinate system
- WGS84
- Update frequency
- Updated as needed
- Source service category
- Safety and quality of life
- Dataset identifier
- ActiveFault
- Source platforms
- GeologyCloud
- Link status
- Working
- Last checked
- Nov 11, 2026
- Created
- Nov 11, 2026
- Updated
- Nov 11, 2026
Usage tips
GeoJSON：GeoJSON: add a vector layer in QGIS and check the declared source CRS.
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