Usu Shima Lighthouse
Location & Light Range
About Usu Shima Lighthouse
Also known as: #Usu Shima
Usu Shima Lighthouse stands on a small island situated about 2.5 kilometers north of Yobuko and 1.5 kilometers east of Kabe Shima. The current structure, a concrete post on a round base, replaced the original in 2015. The earlier lighthouse, also a concrete post attached to a 1-story equipment building, measured 9.5 meters high. The light emits a white flash every three seconds from a focal height of 11 meters, with a geographic range of 10.7 nautical miles. The site is open to visitors, though the tower itself remains closed to the public.
Why it matters: This lighthouse provides a critical visual reference for vessels navigating the coastal waters between Yobuko and Kabe Shima.
Light & Optic
- Flash Type
- Flashing
- Light Color
- White
- Interval
- 3s
- Raw Code
- Fl W 3s
- Focal Height
- 11m
- Geographic Range
- 10.7NM
Construction & History
Significant events: Replaced in 2015
Visiting
- Open to public
- Site open, tower closed
Nearby Vessels
Tower & Structure
- Tower Height
- 9.5m
- Tower Color
- white
- Material
- concrete
Structure: concrete post attached to a 1-story concrete equipment building
Location
- City
- Karatsu
- Country
- 🇯🇵Japan
- Region
- Saga Prefecture
- Sea Region
- A small island about 2.5 km north of Yobuko and 1.5 km east of Kabe Shima.
- Latitude
- 33.5644°
- Longitude
- 129.8964°
References & Identifiers
- Nearest Port
- Yobuko(1.3 km)
- Admiralty No.
- M5266.2
- ARLHS No.
- JPN-836
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