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Kusumi Lighthouse

Fl G 11s🇯🇵Okayama and Hiroshima, JPOperational

Location & Light Range

About Kusumi Lighthouse

This light station emits a single green flash at 8-second intervals. Its focal plane stands 12 meters above the water. The station's geographic range is limited to 5 nautical miles. It is situated near the Okayama and Hiroshima prefectures.

Light & Optic

Characteristic Signature
Fl G 11s
Flash Type
Flashing
Light Color
Green
Flash Count
1 flash
Interval
11s
Raw Code
Mo.(A)G. period 8s
Focal Height
12m
Geographic Range
5NM

References & Identifiers

Admiralty No.
M5737
NGA No.
8114

Location

City
Okayama and Hiroshima
Country
🇯🇵JP
Latitude
34.4295°
Longitude
133.8210°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Kusumi Lighthouse at night?+
Kusumi displays the characteristic Fl G 11s — 1 green flash every 11 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 Kusumi Lighthouse guide vessels into?+
Kusumi Lighthouse assists vessels approaching 5 nearby ports. The closest is Shimotsui at 1.3 NM to the WNW. Other ports served include Kotoura (2.7 NM NNE), Shibukawa (4.2 NM ENE), Hibi (5.6 NM ENE), Sakaide (5.8 NM SSE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Kusumi Lighthouse still active and maintained?+
Yes, Kusumi 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 Kusumi Lighthouse?+
Kusumi 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 Kusumi Lighthouse?+
You can track vessels near Kusumi 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.