lang=EN-US style="FONT-SIZE: 14pt; FONT-FAMILY: ’Times New Roman’; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">Up to now, most of scholars work in geology and earthquake engineering considered that a very important Liujiapu fault (also named Kongjiaya fault) exists in Anning district of Lanzhou city, and maybe extends east to Sanyyuanxia across the main urban region of