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1879 Gansu earthquake
The 1879 Gansu earthquake occurred at about 04:00 local time on 1 July. It had an estimated magnitude of 8.0 on the surface wave magnitude scale and a maximum perceived intensity of XI (''Extreme'') on the Mercalli intensity scale. The epicenter was in Wudu District in southern Gansu, close to the border with Sichuan. It caused widespread damage and killed an estimated 22,000 people.
==Earthquake==
The earthquake was preceded by foreshocks in the few days before the mainshock.〔
The meizoseismal area extends 70 km in a SSW-NNE direction and is 30 km across. The earthquake may have been caused by movement on the SSW-NNE trending Fanjiaba-Linjiang Fault. This fault correlates well with a 30 km long lineament seen on satellite images. The similarly oriented Hanan-Daoqizi-Maopola fault zone has also been proposed as a likely candidate.〔
The earthquake triggered many landslides and caused the formation of several natural dams 40 to 120 m high.
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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