Akaiso Iwa Lighthouse
Location & Light Range
About Akaiso Iwa Lighthouse
Akaiso Iwa is located on a reef 300 meters from the shore of Hirota harbor, within Hirota Bay. The structure is a 10-meter red concrete post that stands on a square, one-story equipment room. It shows a red light that flashes once every three seconds (Fl R 3s). The light source is 11 meters above sea level, and the light is visible for 10.7 nautical miles. The location is accessible to the public, though access to the tower is restricted. Kesennuma is the nearest port, 5.5 kilometers distant.
Why it matters: Akaiso Iwa serves as a navigation aid, warning vessels of a submerged reef and marking the entrance to Hirota harbor.
Light & Optic
- Flash Type
- Flashing
- Light Color
- Red
- Interval
- 3s
- Raw Code
- Fl R 3s
- Focal Height
- 11m
- Geographic Range
- 10.7NM
Location
- City
- Rikuzen-Takata
- Country
- 🇯🇵Japan
- Region
- Iwate Prefecture
- Sea Region
- on a reef about 300 meters off Hirota harbor in Hirota Bay.
- Latitude
- 38.9516°
- Longitude
- 141.6847°
References & Identifiers
- Nearest Port
- Kesennuma(5.5 km)
- Admiralty No.
- M6578
- NGA No.
- 4224
Tower & Structure
- Tower Height
- 10m
- Tower Shape
- cylindrical
- Tower Color
- red
- Material
- concrete
Structure: A 10-meter red concrete post rising from a square 1-story equipment room.
Visiting
- Open to public
- Site open, tower closed
Nearby Vessels
اعثر على منارة Akaiso Iwa على الخريطة البحرية المباشرة
خطّط رحلاتك قرب Japan، وشاهد السفن المجاورة في الوقت الفعلي، واستكشف أكثر من 14,900 معلَم ملاحي في التطبيق.