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Ohata Kō North Breakwater Lighthouse

Iso Red 6s🇯🇵Mutsu, JPOperational

Location & Light Range

About Ohata Kō North Breakwater Lighthouse

This 8.5-meter concrete post, painted red, stands on the west end of Ohata's north breakwater. It is attached to a square, one-story concrete equipment shelter, with the entire structure colored red. The light emits a red, isophase signal on a 6-second cycle. Built and first lit in 1979, this navigational aid offers a geographic range of 10.7 nautical miles. It is located 0.6 kilometers from the nearest port, Ohata, within Mutsu city.

Why it matters: The light is essential for the safe navigation of vessels entering and exiting Ohata harbor, specifically marking the western end of the breakwater and providing a distinct warning.

Light & Optic

Characteristic Signature
Iso Red 6s
Flash Type
Isophase
Light Color
Red
Interval
6s
Raw Code
Iso R 6s
Focal Height
11m
Geographic Range
10.7NM

Construction & History

Year Built
1979

References & Identifiers

Nearest Port
Ohata(0.6 km)
Admiralty No.
M6633
ARLHS No.
JPN-1185

Tower & Structure

Tower Height
8.5m
Tower Color
red
Material
concrete

Structure: A 8.5m concrete post attached to a square 1-story concrete equipment shelter. The entire lighthouse is red.

Location

City
Mutsu
Country
🇯🇵Japan
Region
Aomori Prefecture
Sea Region
Ohata harbor, on a breakwater at its west end.
Latitude
41.4123°
Longitude
141.1687°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Ohata Kō North Breakwater Lighthouse at night?+
Ohata Kō North Breakwater displays the characteristic Iso Red 6s. 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 red color may indicate a specific sector or warning zone.
Which ports and harbors does Ohata Kō North Breakwater Lighthouse guide vessels into?+
Ohata Kō North Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Ohata at 0.3 NM to the SE. Other ports served include Ominato (8.9 NM S), Shiriyazaki (11.9 NM E), Oma (13.6 NM WNW), Sai, Aomori (14 NM W). Mariners should consult the relevant chart for full approach and pilotage information.
Is Ohata Kō North Breakwater Lighthouse still active and maintained?+
Yes, Ohata Kō North 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 Ohata Kō North Breakwater Lighthouse?+
Ohata Kō North 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 Ohata Kō North Breakwater Lighthouse?+
You can track vessels near Ohata Kō North 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.