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Keiyo Seaberth Lighthouse

Fl (3) White 12s🇯🇵Sodegaura, JPOperational

Location & Light Range

About Keiyo Seaberth Lighthouse

Keiyo Seaberth Lighthouse is a maritime navigation aid located in Sodegaura, JP. It is currently operational and active, providing guidance to vessels navigating the surrounding waters. The light sits at a focal height of 35 meters above mean sea level.

Light characteristic: The identifying signal of this lighthouse is Fl (3) White 12s. This means the light produces 3 flashes every 12 seconds. Mariners use this distinctive pattern to positively identify the light and distinguish it from other aids to navigation in the area. The light color is white, which may indicate a specific sector or warning zone.

Position: Keiyo Seaberth Lighthouse is positioned at 35.5113°N, 139.9368°E, near Sodegaura in JP.

Geographic context: Keiyo Seaberth Lighthouse is situated on the Sea of Japan, within the Japan / Korea shipping lane — a busy shipping corridor linking the major ports of Japan and South Korea. The location falls within the temperate maritime climate zone.

Nearby lighthouses in JP: Other lighthouses in the region include Abashiri East Breakwater, Abashiri Island Breakwater North End, Abashiri North Breakwater, Abashiri South Breakwater East End, Abuka Kō. View all on the Lighthouses Directory.

Nearby Ports

Anegasaki

JPANE

4.3 NMESE

Urayasu

JPUYA

6.7 NMN

Ichihara

JPICH

8.1 NMENE

Tokyo

JPTYO

8.1 NMNW

Higashi-Ogishima

JPHIO

8.3 NMW

Flash Characteristics

Characteristic Signature
Fl (3) White 12s
Flash Type
Flashing
Light Color
White
Flash Count
3 flashes
Interval
12s

Physical Specifications

Focal Height
35m
Light Range
Not available
Status
ACTIVE
City
Sodegaura
Country
🇯🇵JP
Latitude
35.5113°
Longitude
139.9368°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Keiyo Seaberth Lighthouse at night?+
Keiyo Seaberth displays the characteristic Fl (3) White 12s — 3 white flashes every 12 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 Keiyo Seaberth Lighthouse guide vessels into?+
Keiyo Seaberth Lighthouse assists vessels approaching 5 nearby ports. The closest is Anegasaki at 4.3 NM to the ESE. Other ports served include Urayasu (6.7 NM N), Ichihara (8.1 NM ENE), Tokyo (8.1 NM NW), Higashi-Ogishima (8.3 NM W). Mariners should consult the relevant chart for full approach and pilotage information.
Is Keiyo Seaberth Lighthouse still active and maintained?+
Yes, Keiyo Seaberth 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 Keiyo Seaberth Lighthouse?+
Keiyo Seaberth 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 Keiyo Seaberth Lighthouse?+
You can track vessels near Keiyo Seaberth 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.