Kogame Iwa Lighthouse
Location & Light Range
About Kogame Iwa Lighthouse
This cylindrical concrete lighthouse, built in 1949, stands 13 meters tall on a concrete pier. It is located on a shoal off the north coast of Shimo Shima, near Amakusa in Kumamoto Prefecture. The tower displays a single red flash every 8 seconds from a focal height of 15 meters. It has a geographic range of 11.9 nautical miles. The site is open, but the tower itself is closed to the public. The nearest port, Futae, is 1.3 kilometers away.
Why it matters: The Kogame Iwa lighthouse warns mariners of a hazardous shoal off the north coast of Shimo Shima, contributing to maritime safety in the region.
Light & Optic
- Flash Type
- Flashing
- Light Color
- Red
- Flash Count
- 1 flash
- Interval
- 8s
- Raw Code
- Fl R 8s
- Focal Height
- 15m
- Geographic Range
- 11.9NM
Construction & History
- Year Built
- 1949
Visiting
- Open to public
- Site open, tower closed
Nearby Vessels
Tower & Structure
- Tower Height
- 13m
- Tower Shape
- cylindrical
- Tower Color
- red
- Material
- concrete
Structure: round concrete tower with double gallery, mounted on a concrete pier
Location
- City
- Amakusa
- Country
- 🇯🇵Japan
- Region
- Kumamoto Prefecture
- Sea Region
- shoal off the north coast of Shimo Shima
- Latitude
- 32.5601°
- Longitude
- 130.1077°
References & Identifiers
- Nearest Port
- Futae(1.3 km)
- Admiralty No.
- M5147.4
- NGA No.
- 11456
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