Shiranuka Lighthouse
Location & Light Range
About Shiranuka Lighthouse
Also known as: Shiranuka (Siranuka)
The Shiranuka Lighthouse, first illuminated in 1931, is situated on a bluff near Rokkasho, overlooking the southern side of Shiranuka harbor. It is a 14-meter tall, round cylindrical concrete tower topped with a lantern and gallery. The light's focal plane is 38 meters above sea level, producing a white flash every four seconds (Fl W 4s). The station's grounds are open for visits, though the tower remains closed. A spotlight previously marking the South Breakwater ceased operation in 2019.
Why it matters: This lighthouse marks the harbor entrance, offering a reference point for vessels navigating within a 16.7 nautical mile range.
Light & Optic
- Flash Type
- Flashing
- Light Color
- White
- Interval
- 4s
- Raw Code
- Fl W 4s
- Focal Height
- 38m
- Light Range
- 12NM (22.2 km)
- Geographic Range
- 16.7NM
Construction & History
- First Lit
- 1931
Significant events: Spotlight illuminating South Breakwater deactivated 2019
Visiting
- Open to public
- Site open, tower closed
Nearby Vessels
Tower & Structure
- Tower Height
- 14m
- Tower Shape
- cylindrical
- Tower Color
- white
- Material
- concrete
Structure: round cylindrical concrete tower with lantern and gallery
Location
- City
- Rokkasho
- Country
- 🇯🇵Japan
- Region
- Aomori Prefecture
- Sea Region
- Shiranuka harbor, on a bluff on the south side
- Latitude
- 41.1320°
- Longitude
- 141.3952°
References & Identifiers
- Nearest Port
- Mutsuogawara(12.0 km)
- Admiralty No.
- M6628
- NGA No.
- 3860
- ARLHS No.
- JPN-578
اعثر على منارة Shiranuka على الخريطة البحرية المباشرة
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