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|Local date||April 9, 1858|
|Epicenter||Coordinates: [better source needed]|
|Casualties||426[better source needed]|
The Hietsu earthquake (飛越地震, Hietsu jishin) was a doublet earthquake that took place on April 9, 1858 (according to the old Japanese calendar, February 26, Ansei 5). It most likely occurred on the Atotsugawa and Miboro faults, which connect the Amō Pass in Gifu Prefecture (in the part that was called Hida Province) and Mount Tate in Toyama Prefecture (then known as Etchū Province) on the island of Honshū in Japan. Its name includes one kanji from Hida (飛騨国) and one from Etchū (越中国). The earthquakes are estimated to have killed 200–300 people. It also caused the Mount Tombi landslide and blocked the upper reaches of the Jōganji River.
- Utsu, T. (2004). "Catalog of Damaging Earthquakes in the World (Through 2010)". IISEE. Retrieved 13 November 2011.
- Inoue K., Mizuyama T. & Sakatani Y. (2010). "The Catastrophic Tombi Landslide and Accompanying Landslide Dams Induced by the 1858 Hietsu Earthquake". Journal of Disaster Research. 5 (3): 245–256. doi:10.20965/jdr.2010.p0245.
This article incorporates material from 飛越地震 (Hietsu jishin) and linked articles in the Japanese Wikipedia, retrieved on February 29, 2008.
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