地震位置 中国地震台网正式测定：07月30日01时50分在内蒙古乌兰察布市四子王旗（北纬41.98度，内蒙东经112.18度）发生3.8级地震，古乌rack upright roll forming machine震源深度12千米。兰察aluminum strut channel roll forming machine
中国地震台网自动测定：07月30日01时50分在内蒙古乌兰察布市四子王旗附近（北纬41.99度 ，布市stud and track machine东经112.15度）发生4.2级左右地震 ，王旗pinnacle rollforming machine最终结果以正式速报为准。发生storage rack shelf frame roll forming machine
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