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2008年汶川MS8.0地震有感地区范围大于1 000km。甘肃省十五期间在兰州市架设了50个强震台站用于实现市区范围内的强震动烈度速报,在本次地震中大多数台站都记录到了相应的强震动记录,其中最大单道加速度峰值记录为40.4cm/s2。本文展示了43个兰州烈度速报台站记录到的共129道本次地震强震动记录信息,并初步分析了兰州市加速度峰值分布和加速度峰值与土层厚度的对应情况。
The Wenchuan MS8.0 Earthquake in 2008 has an area of more than 1 000 km. In Gansu Province, during the Tenth Five-year Plan period, 50 strong earth stations were set up in Lanzhou to realize the rapid earthquake intensity report in the urban area. Corresponding records of strong earthquakes were recorded in most of the stations in this earthquake. The largest Single acceleration peak is recorded as 40.4cm / s2. This paper presents a total of 129 records of strong earthquake records recorded by 43 stations in Lanzhou, and analyzes the corresponding distribution of peak acceleration and peak acceleration of soil and soil thickness in Lanzhou.