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Tsukumi Shiraishi Lighthouse

Fl (2) White 5s🇯🇵Tsukumi, JPOperational

Location & Light Range

About Tsukumi Shiraishi Lighthouse

Also known as: Tsukumi Shiraishi (Tsukumi Sirais)

Tsukumi Shiraishi Lighthouse is a 9-meter concrete tower situated on a rocky reef approximately 10 kilometers east northeast of Tsukumi. The cylindrical structure, painted black with a single red horizontal band, stands 12 meters above sea level. Its light emits a white flash every 5 seconds, visible for 11 nautical miles. The lighthouse is accessible by boat, with the site open to visitors, though the tower itself is closed. The nearest port is Nagame, located 2.9 kilometers away.

Why it matters: This lighthouse warns vessels of a dangerous rocky reef extending from a promontory, aiding local shipping and fishing fleets.

Light & Optic

Characteristic Signature
Fl (2) White 5s
Flash Type
Flashing
Light Color
White
Flash Count
2 flashes
Interval
5s
Raw Code
Fl W 5s
Focal Height
12m
Geographic Range
11NM

Location

City
Tsukumi
Country
🇯🇵Japan
Region
Oita Prefecture
Sea Region
Located on a rocky reef off a promontory about 10 km east northeast of Tsukumi.
Latitude
33.1089°
Longitude
131.9392°

References & Identifiers

Nearest Port
Nagame(2.9 km)
Admiralty No.
M4928
NGA No.
10536
USCG No.
JCG-5719

Tower & Structure

Tower Height
9m
Tower Shape
cylindrical
Tower Color
black with one red horizontal band
Material
concrete

Structure: round concrete tower, painted black with one red horizontal band

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Tsukumi Shiraishi Lighthouse at night?+
Tsukumi Shiraishi displays the characteristic Fl (2) White 5s — 2 white flashes every 5 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 white color may indicate a specific sector or warning zone.
Which ports and harbors does Tsukumi Shiraishi Lighthouse guide vessels into?+
Tsukumi Shiraishi Lighthouse assists vessels approaching 5 nearby ports. The closest is Tsukumi at 3.8 NM to the WSW. Other ports served include Usuki (6.6 NM W), Saiki (7.9 NM S), Urashiro (8.5 NM S), Saganoseki (8.9 NM NNW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Tsukumi Shiraishi Lighthouse still active and maintained?+
Yes, Tsukumi Shiraishi 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 Tsukumi Shiraishi Lighthouse?+
Tsukumi Shiraishi 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 Tsukumi Shiraishi Lighthouse?+
You can track vessels near Tsukumi Shiraishi 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.