Get the MarineRadar appSatellite AISSatellite live trackingTrack any shipLive alerts112,000+ ships trackedDownload free

Sōya Gyoko South Breakwater Lighthouse

Occ R 4s🇯🇵Northern Hokkaidō, JPOperational

Location & Light Range

About Sōya Gyoko South Breakwater Lighthouse

This lighthouse is a red, conical fiberglass structure standing 10 meters tall. The light source is situated 13 meters above sea level. It emits an isophase green light with a 4-second cycle. The lighthouse has a geographic range of 4 nautical miles.

Light & Optic

Characteristic Signature
Occ R 4s
Flash Type
Occ
Light Color
Red
Flash Count
1 flash
Interval
4s
Raw Code
Iso.G. period 4s
Focal Height
13m
Geographic Range
4NM

Location

City
Northern Hokkaidō
Country
🇯🇵JP
Latitude
45.4859°
Longitude
141.8773°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
10m
Tower Shape
conical
Tower Color
red
Material
fiberglass

Structure: Red conical glass reinforced plastic(grp) fiberglass column; 10

References & Identifiers

Admiralty No.
M6897.6
NGA No.
1520
Live tracking · 50,000+ mariners

Find Sōya Gyoko South Breakwater Lighthouse on the live nautical map

Plan voyages near JP, see nearby vessels in real time, and explore 14,900+ navigation aids in the app.

Nautical mapNearby vesselsVoyage planning
Get the App

Frequently Asked Questions

How do mariners identify Sōya Gyoko South Breakwater Lighthouse at night?+
Sōya Gyoko South Breakwater displays the characteristic Occ R 4s — 1 red flash every 4 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 red color may indicate a specific sector or warning zone.
Which ports and harbors does Sōya Gyoko South Breakwater Lighthouse guide vessels into?+
Sōya Gyoko South Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Nishibe at 15 NM to the SE. Other ports served include Onishi (15 NM SE), Hamasarufutsu (20 NM SE), Oshidomari (31 NM WSW), Shido (31 NM WSW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Sōya Gyoko South Breakwater Lighthouse still active and maintained?+
Yes, Sōya Gyoko South Breakwater 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.
How can I track vessels near Sōya Gyoko South Breakwater Lighthouse?+
You can track vessels near Sōya Gyoko South Breakwater 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.