The online map of landform in Wenchuan disaster area in China comes from the Wenchuan Earthquake Disaster Atlas, the scale of the map is 1:1850000, which is compiled by the Wenchuan Earthquake Disaster Atlas compilation committee, and published by Chengdu Map Publishing House.
The Wenchuan Earthquake Disaster Atlas is based on the work results of the expert group and closely focuses on the theme of "Wenchuan Earthquake Disaster". After the Wenchuan earthquake, the National Disaster Reduction Commission and the Ministry of Science and Technology jointly established an earthquake relief expert group, bringing together more than 30 ministries and commissions from the Ministry of Science and Technology, including the Ministry of Civil Affairs, the Ministry of Water Resources, the China Earthquake Administration, the State Bureau of Surveying and Mapping, and the Chinese Academy of Sciences. Experts and scholars have carried out multidisciplinary comprehensive research on the Wenchuan earthquake, obtained a large amount of monitoring information and evaluation data, and obtained fruitful research results.
The epicenter of Wenchuan earthquake and aftershocks is mainly distributed in Wenchuan Beichuan Qingchuan area. The landform of this area is complex and diverse, including extremely high mountains, high mountains, medium high mountains, middle mountains, low mountains, river valleys and basins. From northwest to Southeast, it gradually transits from extremely high mountains to Sichuan Basin. The trend of the mountain range is consistent with the geological structure line, which is NE-SW. Wenchuan county is located between Longmen mountain system and Qionglai mountain system, which is a high mountain and canyon area.
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