2008年12月26日下午4时20分47秒,瑞丽市发生4.9级地震,震源深度为5km。在人类历史上,较大的地质变化通常是造成原生型地形、地物、地貌改变的重要因素,且尤以地震为甚。以鼠疫病为例,地震后通常在瞬间造成鼠疫自然疫源地的改变,从而导致栖息地场所被破坏后的黄胸鼠向四周 On December 26, 2008, at 4:20:47 PM, an earthquake of magnitude 4.9 occurred in Ruili City, with a focal depth of 5km. In human history, large geological changes are usually the main factors causing the change of the topography, topography and topography of the primary type, especially earthquakes. Taking plague disease as an example, the natural plague of the plague usually changes in an instant after the earthquake, resulting in the destruction of the rodent chestnuts around the habitat sites