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Imabari Ko Lighthouse

Iso G 6s🇯🇵Seto Naikai Western, JPOperational

Location & Light Range

About Imabari Ko Lighthouse

This lighthouse marks the Imabari Ko entrance. It emits an isophase green light on a 6-second cycle. The focal height of the light is 18 meters above sea level. Its signal can be seen for a geographic range of 8 nautical miles. The lighthouse is currently operational.

Light & Optic

Characteristic Signature
Iso G 6s
Flash Type
Isophase
Light Color
Green
Flash Count
1 flash
Interval
6s
Raw Code
Iso.G. period 6s
Focal Height
18m
Light Range
11NM (20.4 km)
Geographic Range
8NM

References & Identifiers

Admiralty No.
M5467
NGA No.
8700

Location

City
Seto Naikai Western
Country
🇯🇵JP
Latitude
34.0744°
Longitude
133.0059°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How far offshore can Imabari Ko Lighthouse be seen?+
With a focal height of 18 meters and a nominal range of 11 nautical miles (approximately 20.4 km), Imabari Ko is visible from well offshore under standard atmospheric conditions. Actual visibility depends on observer height, weather, and sea state. This range makes it a significant coastal navigation aid for vessels transiting the area.
How do mariners identify Imabari Ko Lighthouse at night?+
Imabari Ko displays the characteristic Iso G 6s — 1 green flash every 6 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 Imabari Ko Lighthouse guide vessels into?+
Imabari Ko Lighthouse assists vessels approaching 5 nearby ports. The closest is Imabari at 0.8 NM to the SSE. Other ports served include Hashihama (2.7 NM NW), Namikata (4 NM NW), Yoshiumi (5.4 NM NNE), Nyugawa (8.3 NM SSE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Imabari Ko Lighthouse still active and maintained?+
Yes, Imabari Ko 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 Imabari Ko Lighthouse?+
Imabari Ko 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 Imabari Ko Lighthouse?+
You can track vessels near Imabari Ko 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.