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Hamasaka Lighthouse

Oc (2) White 6s🇯🇵Shin-onsen, JPOperational

Location & Light Range

About Hamasaka Lighthouse

Also known as: Hamasaka (Yashiro Ga Hana, Yajoga Hana)

This concrete lighthouse, constructed in 1972, stands 10 meters tall on a promontory east of Moroyose. Its white cylindrical tower reaches a focal height of 74 meters, emitting two white flashes every six seconds. The structure incorporates a two-story equipment shelter, which formerly housed a spotlight that illuminated a nearby reef. The lighthouse is situated on a forested ridge, a half-kilometer walk from the Hamasaka harbor. While the site is open to the public, the tower itself is closed.

Why it matters: The Hamasaka light warns vessels of the promontory and the adjacent coast, with its former spotlight indicating a specific reef hazard.

Light & Optic

Characteristic Signature
Oc (2) White 6s
Flash Type
Occulting
Light Color
White
Flash Count
2 flashes
Interval
6s
Raw Code
Oc(2) W 6s
Focal Height
74m
Geographic Range
21.9NM

Construction & History

Year Built
1972

Significant events: Spotlight formerly illuminated nearby reef

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
10m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: round cylindrical concrete tower, attached to a 2-story equipment shelter (an inactive spotlight in the upper story formerly illuminated on a nearby reef)

Location

City
Shin-onsen
Country
🇯🇵Japan
Region
Hyogo Prefecture
Sea Region
on a promontory at Hamasaka, about 3 km (2 mi) east of Moroyose, accessible by a short walk from the harbor along a forested ridge
Latitude
35.6348°
Longitude
134.4391°

References & Identifiers

Nearest Port
Hamasaka(0.5 km)
ARLHS No.
JPN-1547
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Frequently Asked Questions

How do mariners identify Hamasaka Lighthouse at night?+
Hamasaka displays the characteristic Oc (2) White 6s — 2 white flashes every 6 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 Hamasaka Lighthouse guide vessels into?+
Hamasaka Lighthouse assists vessels approaching 5 nearby ports. The closest is Hamasaka at 0.5 NM to the ESE. Other ports served include Tajiri, Tottori (6.4 NM WSW), Shibayama (11 NM E), Yasugi (13.1 NM E), Tottori (13.3 NM WSW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Hamasaka Lighthouse still active and maintained?+
Yes, Hamasaka 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 Hamasaka Lighthouse?+
Hamasaka 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 Hamasaka Lighthouse?+
You can track vessels near Hamasaka 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.