Hagi City: Ai Shima Lighthouse Lighthouse
Location & Light Range
About Hagi City: Ai Shima Lighthouse Lighthouse
The Ai Shima Lighthouse is a cylindrical concrete tower situated near the northern tip of Ai Shima, an island roughly 15 kilometers northwest of Hagi. This structure, standing 10 meters tall, features a lantern and gallery. Its light emits a single white flash every 21 seconds from a focal height of 56 meters, providing a geographic range of 19.5 nautical miles. The lighthouse is accessible only by boat from the nearest port, Aishima, which is 1 kilometer away. Its operational status ensures it serves as a constant aid to navigation in the waters off Yamaguchi Prefecture.
Why it matters: This lighthouse warns mariners of the northern tip of Ai Shima, a hazard within coastal shipping lanes northwest of Hagi. Its distinctive semicircular cylindrical concrete tower also marks it as a unique architectural feature.
Light & Optic
- Flash Type
- Flashing
- Light Color
- White
- Flash Count
- 2 flashes
- Interval
- 21s
- Raw Code
- Fl W 21s
- Focal Height
- 56m
- Geographic Range
- 19.5NM
Location
- City
- Hagi
- Country
- 🇯🇵Japan
- Region
- Yamaguchi Prefecture
- Sea Region
- near the northern tip of Ai Shima (also called Ainoshima), a small island about 15 km northwest of Hagi.
- Latitude
- 34.5165°
- Longitude
- 131.2764°
Nearby Vessels
Tower & Structure
- Tower Height
- 10m
- Tower Shape
- cylindrical
- Tower Color
- white
- Material
- concrete
Structure: semicircular cylindrical concrete tower with lantern and gallery
References & Identifiers
- Nearest Port
- Aishima(1.0 km)
- Admiralty No.
- M7378
- NGA No.
- 1632
- USCG No.
- JCG-0756
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