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Usubae Lighthouse

Fl (2) W 10s🇯🇵Kōchi (Southern Shikoku), JPOperational

Location & Light Range

About Usubae Lighthouse

The Usubae Lighthouse stands as a white fiberglass column, reaching a height of 7 meters. Its light emits two white flashes every 10 seconds, providing a visible range of 12 nautical miles. The focal plane of the light is situated at 51 meters above sea level. Constructed from glass-reinforced plastic, this structure serves as a navigational aid on the southern coast of Shikoku.

Light & Optic

Characteristic Signature
Fl (2) W 10s
Flash Type
Flashing
Light Color
White
Flash Count
2 flashes
Interval
10s
Raw Code
Fl.(2)W. period 10s
Focal Height
51m
Geographic Range
12NM

Location

City
Kōchi (Southern Shikoku)
Country
🇯🇵JP
Latitude
32.7314°
Longitude
132.9683°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
7m
Tower Color
white
Material
fiberglass

Structure: White glass reinforced plastic(grp) fiberglass column; 7

References & Identifiers

Admiralty No.
M5603
NGA No.
10288
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Frequently Asked Questions

How do mariners identify Usubae Lighthouse at night?+
Usubae displays the characteristic Fl (2) W 10s — 2 white flashes every 10 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.
Which ports and harbors does Usubae Lighthouse guide vessels into?+
Usubae Lighthouse assists vessels approaching 5 nearby ports. The closest is Tosashimizu at 2.6 NM to the N. Other ports served include Ashizuri (3.4 NM NNW), Kozukushi (15.5 NM NW), Ozuku (15.6 NM NW), Issai (16.8 NM W). Mariners should consult the relevant chart for full approach and pilotage information.
Is Usubae Lighthouse still active and maintained?+
Yes, Usubae 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 Usubae Lighthouse?+
Usubae 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 Usubae Lighthouse?+
You can track vessels near Usubae 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.