Irōzaki Lighthouse

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Irōzaki Lighthouse
Irō Saki
Irōzaki Lighthouse
Irōzaki Lighthouse is located in Japan
Irōzaki Lighthouse
Location Minamiizu
Shizuoka Prefecture
Coordinates 34°36′10.1″N 138°50′42.2″E / 34.602806°N 138.845056°E / 34.602806; 138.845056Coordinates: 34°36′10.1″N 138°50′42.2″E / 34.602806°N 138.845056°E / 34.602806; 138.845056
Year first constructed 1871 (first)
Year first lit 1933 (current)
Foundation concrete base
Construction concrete tower
Tower shape cylindrical tower with balcony and lantern
Markings / pattern white tower and lantern
Height 11.38 metres (37.3 ft)
Focal height 59.54 metres (195.3 ft)
Original lens LB-H40
Intensity 60,000 candela (white)
67,000 candela (red)
Range 38 kilometers
Characteristic Al Fl W R 16s.[1]
Admiralty number M6270
NGA number 5572
ARLHS number JPN-176
Japan number JCG-2448[2]

Irōzaki Light (石廊埼灯台, Irōzaki tōdai) is a lighthouse located on a hill at the outermost extremity of Cape Irōzaki south of Minamiizu Town, Shizuoka Prefecture, Japan on the southernmost extremity of Izu Peninsula. It is located within the borders of the Fuji-Hakone-Izu National Park.

Irōzaki lighthouse,Shizuoka prefecture,Japan


Although not one of the eight lighthouses stipulated specifically by the provisions of the Anglo-Japanese Treaty of Amity and Commerce of 1858, the Irōzaki Lighthouse was one of the earliest of the 26 lighthouses to be built in Meiji period Japan by British engineer Richard Henry Brunton, and was the tenth western style lighthouse to be completed in Japan. Its construction was given priority by the Meiji government due to the frequency of marine accidents off the Izu Peninsula. The original structure as designed by Brunton was octagonal, and was constructed of wood.

The Irōzaki lighthouse was completed on October 5, 1871. This structure was destroyed during a wind storm on November 14, 1932 and was replaced with the current reinforced concrete structure on March 31, 1933. Its lens was upgraded and structure repaired in 1993.

The Irōzaki Lighthouse is listed as one of the “50 Lighthouses of Japan” by the Japan Lighthouse Association. It is operated by the Japan Coast Guard.

See also[edit]



  • Brunton, Richard. Building Japan, 1868–1879. Japan Library, 1991. ISBN 1-873410-05-0
  • Pedlar, Neil. The Imported Pioneers: Westerners who Helped Build Modern Japan. Routledge, 1990. ISBN 0-904404-51-X

External links[edit]