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Shimonoseki Shi Lighthouse

Fl G 4s🇯🇵Seto Naikai Western - Kanmon Kaikyo, JPOperational

Location & Light Range

About Shimonoseki Shi Lighthouse

Shimonoseki Shi emits a single red flash every 4 seconds. This light operates at a focal height of 8 meters above sea level. Its geographic range extends to 4 nautical miles. The lighthouse is operational and located in Seto Naikai Western - Kanmon Kaikyo.

Light & Optic

Characteristic Signature
Fl G 4s
Flash Type
Flashing
Light Color
Green
Flash Count
1 flash
Interval
4s
Raw Code
Fl.R. period 4s
Focal Height
8m
Light Range
5NM (9.3 km)
Geographic Range
4NM

References & Identifiers

Admiralty No.
M5353
NGA No.
9786

Location

City
Seto Naikai Western - Kanmon Kaikyo
Country
🇯🇵JP
Latitude
33.9551°
Longitude
130.9443°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How far offshore can Shimonoseki Shi Lighthouse be seen?+
With a focal height of 8 meters and a nominal range of 5 nautical miles (approximately 9.3 km), Shimonoseki Shi is visible from well offshore under standard atmospheric conditions. Actual visibility depends on observer height, weather, and sea state. As a shorter-range light, it primarily serves nearshore and coastal traffic.
How do mariners identify Shimonoseki Shi Lighthouse at night?+
Shimonoseki Shi displays the characteristic Fl G 4s — 1 green flash every 4 seconds. 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 Shimonoseki Shi Lighthouse guide vessels into?+
Shimonoseki Shi Lighthouse assists vessels approaching 5 nearby ports. The closest is Tanoura/Kitakyushu at 1.2 NM to the ESE. Other ports served include Shimonoseki (1.4 NM SSW), Moji/Kitakyushu (3.3 NM E), Kanmon (3.6 NM SSW), Mutsure (3.9 NM W). Mariners should consult the relevant chart for full approach and pilotage information.
Is Shimonoseki Shi Lighthouse still active and maintained?+
Yes, Shimonoseki Shi 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 Shimonoseki Shi Lighthouse?+
Shimonoseki Shi 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 Shimonoseki Shi Lighthouse?+
You can track vessels near Shimonoseki Shi 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.