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Kurushima-nakaiso Lighthouse

Mo G 8s🇯🇵Seto Naikai Western, JPInactive

Location & Light Range

About Kurushima-nakaiso Lighthouse

This lighthouse features a white, conical fiberglass tower that stands 13 meters high. The focal height of the light is 11 meters. Its geographic range is 5 nautical miles. The light emits a green color in a characteristic of one long flash followed by another long flash, repeated every 8 seconds. The structure is made of glass-reinforced plastic.

Light & Optic

Characteristic Signature
Mo G 8s
Flash Type
Morse
Light Color
Green
Flash Count
1 flash
Interval
8s
Raw Code
Mo.(A)G. period 8s
Focal Height
11m
Light Range
5NM (9.3 km)
Geographic Range
5NM

Location

City
Seto Naikai Western
Country
🇯🇵JP
Latitude
34.1213°
Longitude
132.9728°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
13m
Tower Shape
conical
Tower Color
white
Material
fiberglass

Structure: White glass reinforced plastic(grp) fiberglass building; 13

References & Identifiers

Admiralty No.
M5459.3
NGA No.
8748
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Frequently Asked Questions

How far offshore can Kurushima-nakaiso Lighthouse be seen?+
With a focal height of 11 meters and a nominal range of 5 nautical miles (approximately 9.3 km), Kurushima-nakaiso 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 Kurushima-nakaiso Lighthouse at night?+
Kurushima-nakaiso displays the characteristic Mo G 8s — 1 green flash every 8 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 Kurushima-nakaiso Lighthouse guide vessels into?+
Kurushima-nakaiso Lighthouse assists vessels approaching 5 nearby ports. The closest is Hashihama at 0.7 NM to the S. Other ports served include Namikata (0.9 NM WNW), Yoshiumi (3.9 NM NE), Imabari (4.1 NM SSE), Okamura (5.6 NM NW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Kurushima-nakaiso Lighthouse still active and maintained?+
Kurushima-nakaiso Lighthouse is currently listed as inactive. It may have been decommissioned, replaced by a different navigation aid, or temporarily taken out of service. Mariners should check the latest Notices to Mariners for current status.
What shipping routes pass near Kurushima-nakaiso Lighthouse?+
Kurushima-nakaiso 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 Kurushima-nakaiso Lighthouse?+
You can track vessels near Kurushima-nakaiso 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.