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Mitoko Iso Lighthouse

Fl Red 8s🇯🇵Kamijima, JPOperational

Location & Light Range

About Mitoko Iso Lighthouse

Mitoko Iso is a concrete, cylindrical tower standing 8 meters tall, located off the western tip of Iwagi Shima. This structure, painted red, features a double gallery and is mounted on a concrete pier, rising to a focal height of 9.5 meters. The lighthouse emits a red light with a characteristic of one flash every 8 seconds. Its geographic range is 10.2 nautical miles. The lighthouse is situated on a reef and is accessible only by boat.

Why it matters: Mitoko Iso marks a specific reef off the western tip of Iwagi Shima, helping to prevent groundings in these busy coastal waters. Its distinctive red flash provides a clear signal essential for local fishing boats and commercial traffic navigating the area.

Light & Optic

Characteristic Signature
Fl Red 8s
Flash Type
Flashing
Light Color
Red
Interval
8s
Raw Code
Fl R 8s
Focal Height
9.5m
Geographic Range
10.2NM

Location

City
Kamijima
Country
🇯🇵Japan
Region
Ehime Prefecture
Sea Region
a reef off the western tip of Iwagi Shima
Latitude
34.2580°
Longitude
133.1268°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
8m
Tower Shape
cylindrical
Tower Color
red
Material
concrete

Structure: round cylindrical concrete tower with double gallery, mounted on a concrete pier

References & Identifiers

Nearest Port
Iwagi(1.3 km)
Admiralty No.
M5711.4
NGA No.
8540
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Frequently Asked Questions

How do mariners identify Mitoko Iso Lighthouse at night?+
Mitoko Iso displays the characteristic Fl Red 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 red color may indicate a specific sector or warning zone.
Which ports and harbors does Mitoko Iso Lighthouse guide vessels into?+
Mitoko Iso Lighthouse assists vessels approaching 5 nearby ports. The closest is Katashima at 3.2 NM to the ENE. Other ports served include Setoda (3.2 NM ENE), Hakatashima (3.3 NM SSW), Habu, Hiroshima (3.4 NM ENE), Yuge (3.9 NM E). Mariners should consult the relevant chart for full approach and pilotage information.
Is Mitoko Iso Lighthouse still active and maintained?+
Yes, Mitoko Iso 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 Mitoko Iso Lighthouse?+
Mitoko Iso 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 Mitoko Iso Lighthouse?+
You can track vessels near Mitoko Iso 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.