Ōmazaki Lighthouse

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Ōmazaki Lighthouse
Ōmazaki Lighthouse
Ōmazaki Lighthouse is located in Japan
Ōmazaki Lighthouse
Location Ōma, Aomori Prefecture, Japan
Coordinates 41°33′07″N 140°54′54″E / 41.55194°N 140.91500°E / 41.55194; 140.91500Coordinates: 41°33′07″N 140°54′54″E / 41.55194°N 140.91500°E / 41.55194; 140.91500
Year first constructed 1921 (first)
Year first lit 1953 (current)
Automated 1991
Foundation concrete basement
Construction concrete tower
Tower shape cylibdrical tower with balcony and lantern
Markings / pattern white and black bands tower, white lantern
Height 25.4 metres (83 ft)
Focal height 36 metres (118 ft)
Original lens Fourth Order Fresnel
Intensity 120,000 candela
Range 17 nautical miles (31 km; 20 mi)[1]
Characteristic Fl (3) W 30s
Fog signal one 10s. blast every 50s.
Admiralty number M6634
NGA number 3832
ARLHS number JPN-2636
Japan number JCG-1550[2]

The Ōmazaki Lighthouse (大間埼灯台 Ōmazaki tōdai?) is a lighthouse located at the northernmost extremity of the Shimokita Peninsula of Honshū island in Ōma, Aomori Prefecture, Japan. It is maintained by the Japan Coast Guard.[3]

The lighthouse is located on a small offshore island called Bentenjima, 600 meters off Cape Ōmazaki, within the borders of the Shimokita Hantō Quasi-National Park. There is no public access.

The Ōmazaki Lighthouse illuminates the Tsugaru Strait at the entrance to Mutsu Bay. This is the narrowest point on the Tsugaru Strait and the light from this lighthouse can be seen across the strait in Hokkaido.


Work began on the Ōmazaki Lighthouse in September 1920, and it was first lit on November 1, 1921. During World War II, it was repeatedly hit by air strikes by United States Navy aircraft and by 1945 it was in ruins. While being rebuilt after the war, it was again severely damaged by the 1952 Tokachioki earthquake. The second generation lighthouse was completed in July 1953. A radar beacon was established on April 17, 1983. Since April 1, 1993, the lighthouse has been fully automated, and is now unmanned. The lighthouse is maintained by the Japan Coast Guard.[4]

It is listed as one of the “50 Lighthouses of Japan” by the Japan Lighthouse Association.[5]

See also[edit]


External links[edit]

Media related to Bentenjima (Oma) at Wikimedia Commons