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Rikuchū Benten Saki Lighthouse

Fl (2) W 7s🇯🇵Honshu-East Coast, JPInactive

Location & Light Range

About Rikuchū Benten Saki Lighthouse

The Rikuchū Benten Saki lighthouse is a disused concrete structure. Its round, white tower rises 23 meters from its base. The light source sits at a focal height of 98 meters. It was designed to show its light over a geographic range of 7 nautical miles. The light emitted two white flashes every 7 seconds. The visible arc of the light spanned from 193 degrees 30 minutes to 93 degrees 30 minutes.

Light & Optic

Characteristic Signature
Fl (2) W 7s
Flash Type
Flashing
Light Color
White
Flash Count
2 flashes
Interval
7s
Raw Code
Fl.(2)W. period 7s
Focal Height
98m
Light Range
12NM (22.2 km)
Geographic Range
7NM

Location

City
Honshu-East Coast
Country
🇯🇵JP
Latitude
39.9467°
Longitude
141.9576°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
23m
Tower Shape
round
Tower Color
white
Material
concrete

Structure: White column; 23. Visible 193°30´-093°30´

References & Identifiers

Admiralty No.
M6605.8
NGA No.
3996
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Frequently Asked Questions

How far offshore can Rikuchū Benten Saki Lighthouse be seen?+
With a focal height of 98 meters and a nominal range of 12 nautical miles (approximately 22.2 km), Rikuchū Benten Saki is visible from well offshore under standard atmospheric conditions. Actual visibility depends on observer height, weather, and sea state. This range makes it a significant coastal navigation aid for vessels transiting the area.
How do mariners identify Rikuchū Benten Saki Lighthouse at night?+
Rikuchū Benten Saki displays the characteristic Fl (2) W 7s — 2 white flashes every 7 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 Rikuchū Benten Saki Lighthouse guide vessels into?+
Rikuchū Benten Saki Lighthouse assists vessels approaching 5 nearby ports. The closest is Omoto at 5.9 NM to the S. Other ports served include NODA (11.6 NM NNW), Kuji, Iwate (16.7 NM NNW), Miyako, Iwate (18.5 NM S), Iya (18.8 NM S). Mariners should consult the relevant chart for full approach and pilotage information.
Is Rikuchū Benten Saki Lighthouse still active and maintained?+
Rikuchū Benten Saki 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 Rikuchū Benten Saki Lighthouse?+
Rikuchū Benten Saki 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 Rikuchū Benten Saki Lighthouse?+
You can track vessels near Rikuchū Benten Saki 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.