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Ohata Kō First East Breakwater Lighthouse

F Red 4s🇯🇵Mutsu, JPOperational

Location & Light Range

About Ohata Kō First East Breakwater Lighthouse

Built in 1979, this red, cylindrical concrete tower rises 11 meters high at the eastern edge of Ohata's primary breakwater. Its light is positioned 15 meters above sea level and produces a single red flash every four seconds, with a range of 11.9 nautical miles. The construction consists of a round concrete tower with a flared upper section and a gallery, omitting a lantern enclosure. It is situated in Ohata harbor, 0.2 kilometers from the main port.

Why it matters: This marker indicates the eastern limit of the primary breakwater, assisting vessels entering and leaving Ohata harbor.

Light & Optic

Characteristic Signature
F Red 4s
Flash Type
Fixed
Light Color
Red
Interval
4s
Raw Code
F.Fl R 4s
Focal Height
15m
Geographic Range
11.9NM

Construction & History

Year Built
1979

References & Identifiers

Nearest Port
Ohata(0.2 km)
Admiralty No.
M6633.5
ARLHS No.
JPN-1080

Tower & Structure

Tower Height
11m
Tower Shape
cylindrical
Tower Color
red
Material
concrete

Structure: round concrete tower with flared top and gallery, but no lantern

Location

City
Mutsu
Country
🇯🇵Japan
Region
Aomori Prefecture
Sea Region
Located at the east end of the main breakwater at Ohata, within Ohata harbor.
Latitude
41.4087°
Longitude
141.1764°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Ohata Kō First East Breakwater Lighthouse at night?+
Ohata Kō First East Breakwater displays the characteristic F Red 4s. 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 First East Breakwater Lighthouse guide vessels into?+
Ohata Kō First East Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Ohata at 0.2 NM to the W. Other ports served include Ominato (8.7 NM S), Shiriyazaki (11.6 NM E), Oma (14 NM WNW), Sai, Aomori (14.3 NM W). Mariners should consult the relevant chart for full approach and pilotage information.
Is Ohata Kō First East Breakwater Lighthouse still active and maintained?+
Yes, Ohata Kō First East 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 First East Breakwater Lighthouse?+
Ohata Kō First East 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 First East Breakwater Lighthouse?+
You can track vessels near Ohata Kō First East 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.