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An earthquake with an estimated magnitude of 7.9 struck the eastern Alborz mountains in Persia, causing an estimated 200,000 deaths.
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856 Damghan earthquake
Earthquake in Iran
The Damghan earthquake or the Qumis earthquake occurred on 22 December 856. The earthquake had an estimated magnitude of 7.9, and a maximum intensity of X (Extreme) on the Mercalli intensity scale. The meizoseismal area extended for about 350 kilometres (220 mi) along the…Source: Wikipedia (CC BY-SA)
Alborz
Mountain range in northern Iran
The Alborz range, also spelled as Alburz, Elburz or Elborz, is a mountain range in northern Iran that stretches from the border of Azerbaijan along the western and entire southern coast of the Caspian Sea and finally runs northeast and merges into the smaller Aladagh Mountains…Source: Wikipedia (CC BY-SA)