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Japan: Modern Lighthouses Lighthouse

F (2) Green 7s🇯🇵Ito, JPOperational

Location & Light Range

About Japan: Modern Lighthouses Lighthouse

This white, cylindrical concrete tower, built in 1976, stands 11 meters tall and is located at the end of the main breakwater in Atami, facing Sagami Bay. The structure is a round, slightly flared concrete tower connected to a single-story equipment room. Its light emits two green flashes every seven seconds and has a focal height of 15 meters. This light has a geographic range of 11.9 nautical miles. The nearest port, Itoh, Shizuoka, is 2.5 kilometers away.

Why it matters: This light clearly marks the end of the Atami breakwater, aiding vessels entering and exiting the harbor. Its accessibility makes it a point of interest for visitors to Atami.

Light & Optic

Characteristic Signature
F (2) Green 7s
Flash Type
Fixed
Light Color
Green
Flash Count
2 flashes
Interval
7s
Raw Code
F.Fl(2) G 7s
Focal Height
15m
Geographic Range
11.9NM

Construction & History

Year Built
1976

References & Identifiers

Nearest Port
Itoh, Shizuoka(2.5 km)
Admiralty No.
M6314
NGA No.
5432
ARLHS No.
JPN-1424

Tower & Structure

Tower Height
11m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: round, slightly flared white concrete tower attached to a small 1-story equipment room

Location

City
Ito
Country
🇯🇵Japan
Region
Shizuoka Prefecture
Sea Region
facing Sagami Bay at the base of Izu Peninsula, at the end of the main breakwater at Atami
Latitude
34.9556°
Longitude
139.1449°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Japan: Modern Lighthouses Lighthouse at night?+
Japan: Modern Lighthouses displays the characteristic F (2) Green 7s — 2 green 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. The green color may indicate a specific sector or warning zone.
Which ports and harbors does Japan: Modern Lighthouses Lighthouse guide vessels into?+
Japan: Modern Lighthouses Lighthouse assists vessels approaching 5 nearby ports. The closest is Itoh, Shizuoka at 2.4 NM to the WNW. Other ports served include Ajiro, Shizuoka (6.7 NM NNW), Atami (9 NM NNW), Manazuru (11.8 NM N), Inatori (12 NM SSW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Japan: Modern Lighthouses Lighthouse still active and maintained?+
Yes, Japan: Modern Lighthouses 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 Japan: Modern Lighthouses Lighthouse?+
Japan: Modern Lighthouses 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 Japan: Modern Lighthouses Lighthouse?+
You can track vessels near Japan: Modern Lighthouses 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.