Iwo Jima LORAN-C transmitter

The 411.5-meter-tall transmitting station operated with a power of 4 megawatts to assist maritime and aviation navigation across the Pacific region.

Built in 1963, the facility encountered a catastrophic collapse in 1964 due to a failed guy wire insulator, resulting in four worker casualties.

The transmitter represented Japan's commitment to international maritime safety and technological advancement in the post-war reconstruction period.

The station provided essential navigation signals until 1994, when modern GPS technology made the LORAN-C system obsolete.

After its structural failure, engineers constructed an identical replacement tower that continued operations under Japanese government control from 1993.

Location: Ogasawara Village

Inception: 1963

Height: 411.5 m

GPS coordinates: 24.80222,141.32556

Latest update: March 6, 2025 22:53