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Hachimori Breakwater Lighthouse

Fl Green 3s🇯🇵Happou, JPOperational

Location & Light Range

About Hachimori Breakwater Lighthouse

This white, cylindrical concrete tower stands 12 meters tall on the detached west breakwater of Hachimori. It features a lantern and gallery, with its light positioned 15 meters above sea level. The lighthouse emits a single green flash every 3 seconds, visible for 11.9 nautical miles. Constructed from concrete, the round structure serves as an active aid to navigation. The site is open for visitors, but the tower itself is closed to the public. It is located near Happou in Japan's Akita Prefecture.

Why it matters: This lighthouse guides vessels around the detached west breakwater of Hachimori, preventing collisions and ensuring safe passage for fishing boats and other small craft entering or leaving the port.

Light & Optic

Characteristic Signature
Fl Green 3s
Flash Type
Flashing
Light Color
Green
Interval
3s
Raw Code
Fl G 3s
Focal Height
15m
Geographic Range
11.9NM

Location

City
Happou
Country
🇯🇵Japan
Region
Akita Prefecture
Sea Region
Located on the detached west breakwater of Hachimori.
Latitude
40.3975°
Longitude
139.9736°

References & Identifiers

Nearest Port
Noshiro(11.8 km)
Admiralty No.
M7055.9
NGA No.
3628
ARLHS No.
JPN-1030

Tower & Structure

Tower Height
12m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: round cylindrical concrete tower with lantern and gallery

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Hachimori Breakwater Lighthouse at night?+
Hachimori Breakwater displays the characteristic Fl Green 3s. Each lighthouse has a unique flash pattern published in the List of Lights, allowing mariners to positively identify it and distinguish it from other navigation aids in the area. The green color may indicate a specific sector or warning zone.
Which ports and harbors does Hachimori Breakwater Lighthouse guide vessels into?+
Hachimori Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Noshiro at 11.6 NM to the S. Other ports served include Fukaura, Aomori (15.1 NM N), Ajigasawa (25.5 NM NNE), Funagawa (31.4 NM S), Akitafunagawa (31.8 NM S). Mariners should consult the relevant chart for full approach and pilotage information.
Is Hachimori Breakwater Lighthouse still active and maintained?+
Yes, Hachimori Breakwater Lighthouse is currently operational. It is actively maintained and continues to emit its characteristic light signal for marine navigation. Most modern lighthouses are automated and monitored remotely by the national maritime authority.
What shipping routes pass near Hachimori Breakwater Lighthouse?+
Hachimori Breakwater Lighthouse is located within the Japan / Korea shipping lane — a busy shipping corridor linking the major ports of Japan and South Korea. This makes it an important navigation reference for commercial shipping traffic in the region.
How can I track vessels near Hachimori Breakwater Lighthouse?+
You can track vessels near Hachimori Breakwater Lighthouse in real time using MarineRadar. The platform shows live AIS positions of ships in the area, including vessel name, type, flag, speed, and course. Use the "Track Vessels Nearby" button on this page to open the live map centered on this lighthouse.