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North Anatolian Fault
The North Anatolian Fault (NAF) ((トルコ語: Kuzey Anadolu Fay Hattı)) is an active right-lateral strike-slip fault in northern Anatolia which runs along the transform boundary between the Eurasian Plate and the Anatolian Plate. The fault extends westward from a junction with the East Anatolian Fault at the Karliova Triple Junction in eastern Turkey, across northern Turkey and into the Aegean Sea for a length of 1500 kilometers.〔"The North Anatolian Fault is a 1,500-kilometer-long east-west trending fault that runs across most of Turkey." (The Earth Magazine web site )〕 It runs about 20 km south of Istanbul.
The North Anatolian Fault is similar in many ways to the San Andreas Fault in California. Both are continental transforms with similar lengths and slip rates. The Sea of Marmara near Istanbul is an extensional basin similar to the Salton Trough in California, where a releasing bend in the strike-slip system creates a pull-apart basin.
==Significant earthquakes==
Since the disastrous 1939 Erzincan earthquake, there have been seven earthquakes measuring over 7.0 in magnitude,〔USGS Worldwide Earthquake List. http://earthquake.usgs.gov/earthquakes/map/〕 each happening at a point progressively further west. Seismologists studying this pattern believe that each earthquake may trigger the next. By analyzing the stresses along the fault caused by each large earthquake, they were able to predict the shock that hit the town of İzmit with devastating effect in August 1999. It is thought that the chain is not complete, and that an earthquake will soon strike further west along the fault – perhaps near the heavily populated city of Istanbul.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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