In 1920 a large earthquake was experienced killing more than 100,000 people in Ningxia and Eastern Gansu province, although only 42 were killed in Lanzhou itself, the low number being attributed to the strong yet flexible nature of the wooden buildings in the city.
1920 年发生了大型地震，宁夏和甘肃省东部有超过 100,000 人死亡，但兰州本身死亡人数仅为 42 人，这得益于城市木质建筑的高强度和灵活性。