Tan-Lu fault

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The Tancheng-Lujiang Fault, or Tan-Lu Fault, is a major fault in eastern China. It runs from Tancheng in Shandong Province to Lujiang County in Anhui Province. Its northern part stretches northeast across the Bohai Sea toward the Sea of Okhotsk, covering more than 2,400 kilometers in China. The southern part once extended to Mount Lu. The southern section formed at the end of the Triassic period as a strike-slip fault near the boundary between the Yangtze plate and the Sino-Korean plate. In the Mesozoic era, westward subduction of the Pacific plate under Eurasia caused the fault belt to extend north and become a thrust fault. It has shifted between strike-slip and thrust movements, and in the neotectonic period it acted as a left-lateral strike-slip-thrust fault. The region has produced major earthquakes, including the 1668 Tancheng earthquake and the 1975 Haicheng earthquake.