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893 Dvin earthquake
The 893 Dvin earthquake occurred on 28 December at around midnight. It had a magnitude of approximately 6 and a maximum intensity of approximately IX (''Violent'') on the Mercalli intensity scale. It destroyed the city of Dvin in Armenia, causing approximately 30,000 casualties. The similarity of the Arabic name for Dvin, 'Dabil' to Ardabil in northwestern Iran, has caused confusion in written records, such that the 893 Ardabil earthquake appears in several catalogues, although it is regarded as a fake event. It was also recorded as an event during the classical period of India in several early catalogues at an unspecified capital.
==Tectonic setting==
Southern Armenia lies within the complex zone of continental collision between the Arabian Plate and the Eurasian Plate, which extends from the Bitlis-Zagros belt in the south to the Greater Caucasus mountains, the Apsheron-Balkan Sill and the Kopet Dag mountains in the north. In Armenia the collision is strongly oblique with a large dextral (right lateral) strike-slip component. The Sardarapat-Nakhicheven fault system is formed of four left-stepping fault segments, the Kagyzman, Sardarapat, Parackar-Dvin and Nakhichevan faults. Movement on the Parackar-Dvin segment of this fault system has been associated with a series of large earthquakes in the second half of the 9th-century.
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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