1909 Anegawa earthquake
earthquake struck Shiga Prefecture, Japan on August 14, 1909
The 1909 Anegawa earthquake affected Shiga and Gifu prefectures in Japan on August 14. The epicenter of the Mw 6.9 earthquake was located in Gifu Prefecture and its focal depth was estimated at 15 km (9.3 mi). There were at least 41 fatalities and over 1,000 homes destroyed. A 1.8 m (5.9 ft) high tsunami was also recorded in Lake Biwa.
Earthquake
The earthquake may have occurred on the Tsurugawan-Isewan Tectonic Line, a major fault trending generally northwest–southeast in central Japan. The fault zone comprises five active fault segments that trend northwest–southeast and west-northwest–east-southeast. Its northern strand, the Kaburagi Fault, runs along the edge of Tsuruga Bay and joins the Yanagase Fault to its south. A bend towards the east–southeast separates the fault from the Sekigahara Fault. The earthquake likely ruptured the central portion of the Sekigahara Fault. A possible precursor event sequence may have begun ten years before the mainshock as "notable earthquakes" occurred along an area between Tsuruga Bay and Ise Bay.
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This entry incorporates text from “1909 Anegawa earthquake” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.