Get the MarineRadar appSatellite AISSatellite live trackingTrack any shipLive alerts112,000+ ships trackedDownload free

Iki Oto Shima Lighthouse

Oc White 8s🇯🇵Iki, JPOperational

Location & Light Range

About Iki Oto Shima Lighthouse

A cylindrical concrete tower, 6.5 meters in height, marks the southeastern tip of Iki Shima. This structure is attached to a small equipment shelter and stands on an islet off the island's coast. Its light emits an occulting white flash every 8 seconds, visible for 11.6 nautical miles. The lighthouse is located near the city of Iki within Nagasaki Prefecture. The nearest port, Yobuko, is 13 kilometers away. This white tower operates on a focal height of 14 meters.

Why it matters: This lighthouse is essential for local vessels navigating the southeastern approaches to Iki Shima, marking a specific islet and warning of a potential coastal hazard.

Light & Optic

Characteristic Signature
Oc White 8s
Flash Type
Occulting
Light Color
White
Interval
8s
Raw Code
Oc W 8s
Focal Height
14m
Geographic Range
11.6NM

Location

City
Iki
Country
🇯🇵Japan
Region
Nagasaki Prefecture
Sea Region
An islet just off the southeastern tip of Iki Shima.
Latitude
33.7414°
Longitude
129.7888°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
6.5m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: round concrete tower attached to a small equipment shelter

References & Identifiers

Nearest Port
Yobuko(13.0 km)
Admiralty No.
M5261.5
NGA No.
12692
ARLHS No.
JPN-2255
Live tracking · 50,000+ mariners

Find Iki Oto Shima Lighthouse on the live nautical map

Plan voyages near Japan, see nearby vessels in real time, and explore 14,900+ navigation aids in the app.

Nautical mapNearby vesselsVoyage planning
Get the App

Frequently Asked Questions

How do mariners identify Iki Oto Shima Lighthouse at night?+
Iki Oto Shima displays the characteristic Oc White 8s. 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 Iki Oto Shima Lighthouse guide vessels into?+
Iki Oto Shima Lighthouse assists vessels approaching 5 nearby ports. The closest is Ashibe at 4.3 NM to the NNW. Other ports served include Katsumoto (8.5 NM NW), Yobuko (13 NM SSE), Tobo (17.1 NM SSE), Karatsu (17.9 NM SSE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Iki Oto Shima Lighthouse still active and maintained?+
Yes, Iki Oto 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 Iki Oto Shima Lighthouse?+
Iki Oto 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 Iki Oto Shima Lighthouse?+
You can track vessels near Iki Oto 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.