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Ōhiki Shima Lighthouse

Fl White 4s🇯🇵Nagasaki, JPOperational

Location & Light Range

About Ōhiki Shima Lighthouse

Also known as: Ōhiki Shima (Ō Se)

Ōhiki Shima Lighthouse, built of concrete, stands 15 meters tall and was first lit in 1965. It is a cylindrical, tapered white tower situated on a skerry approximately 11 kilometers west-southwest of Seto Kō. The light emits a white flash every four seconds, with a focal height of 16 meters. Its geographic range is 12.2 nautical miles. The lighthouse is located in the Nagasaki Prefecture, west of Nagasaki city.

Why it matters: This lighthouse is essential for marking the skerry it occupies, preventing ships from running aground in the waters west-southwest of Seto Kō. Its consistent white flash helps guide vessels through this stretch of coastline, ensuring safer navigation.

Light & Optic

Characteristic Signature
Fl White 4s
Flash Type
Flashing
Light Color
White
Interval
4s
Raw Code
Fl W 4s
Focal Height
16m
Geographic Range
12.2NM

Construction & History

Year Built
1965

References & Identifiers

Nearest Port
Matsushima(5.0 km)
Admiralty No.
M5207
NGA No.
11840
ARLHS No.
JPN-2243

Tower & Structure

Tower Height
15m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: round tapered concrete tower

Location

City
Nagasaki
Country
🇯🇵Japan
Region
Nagasaki Prefecture
Sea Region
Located on a skerry about 11 km west southwest of Seto Kō.
Latitude
32.8778°
Longitude
129.5439°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Ōhiki Shima Lighthouse at night?+
Ōhiki Shima displays the characteristic Fl White 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 white color may indicate a specific sector or warning zone.
Which ports and harbors does Ōhiki Shima Lighthouse guide vessels into?+
Ōhiki Shima Lighthouse assists vessels approaching 5 nearby ports. The closest is Matsuura, Nagasaki at 4.4 NM to the NE. Other ports served include Nanatsugama (4.4 NM NE), Sakito (4.4 NM NE), Matsushima, Nagasaki (4.9 NM NE), Seto (5.6 NM NE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Ōhiki Shima Lighthouse still active and maintained?+
Yes, Ōhiki Shima 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 Ōhiki Shima Lighthouse?+
Ōhiki Shima 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 Ōhiki Shima Lighthouse?+
You can track vessels near Ōhiki Shima 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.