China Mudflow Disaster Online Map.
Risk Zoning of Debris Flow Disasters
I The Great Dangerous Debris Flow Area in the Southwest Indian Ocean Basin
1A Nujiang River Most Dangerous Zone
2B Yarlung Zangbo River Medium Risk Zone
II Most Dangerous Debris Flow Areas in the Southeast Pacific Basin
3A Most Dangerous Areas of Jinsha River and Lancang River
4A Minjiang River Most Dangerous Zone
5A Most Dangerous Area of Jialing River
6A Most Dangerous Zone of Yalong River
7B Middle Dangerous Zone of Yangtze River
8C Pearl River Dangerous Area
III Dangerous Debris Flow Region in Northeast Pacific Basin
9B Jinghe and Luohe Medium Dangerous Areas
10B Middle Dangerous Zone in the Upper Reaches of the Yellow River
11A Most Dangerous Zone in the Middle Reaches of the Yellow River
12B Yellow River, Huaihe River and Haihe River Medium Risk Zone
13C Dangerous Zone of Songhua River and Liaohe River
IV Inland Flow and Arctic Basin Areas of General or Non-hazardous Debris Flow
14D Inland Flow Weak or Hazardous Areas in Xinhai, Tibet and Inner Mongolia
Weak Dangerous Zone of 15D Ertiz River
Subregional risk classification
A Most dangerous
B Medium dangerous
C More dangerous.
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