Japan’s Seikan Tunnel: The World’s Longest Undersea Tunnel Japan’s Seikan Tunnel is the longest undersea tunnel in the world, stretching over 53 kilometers, with 23 kilometers running beneath the ocean floor. Built to withstand earthquakes and harsh seabed conditions, it connects Honshu and Hokkaido. Completed in 1988, the tunnel stands as a triumph of civil engineering, safety planning, and geological mastery—especially in one of the world’s most seismically active regions. Important Details: •
0:16
Japan’s Seikan Tunnel: The World’s Longest Undersea Tunnel Japan’…
1.9K views3 months ago
FacebookUnbox Factory
Inside the World’s Deepest “UnderSea” Tunnel: How the $25B Impossible Seikan Tunnel Was Built!
17:55
Inside the World’s Deepest “UnderSea” Tunnel: How the $25…
14.5K views3 months ago
YouTubeCapitol Insider
The $7B Seikan Tunnel 🚆 Japan’s Extreme Underwater Railway Construction
9:14
The $7B Seikan Tunnel 🚆 Japan’s Extreme Underwater Railway Con…
44.9K views3 months ago
YouTubeFutureFlow Process
800 Feet Under the Sea with Full Mobile Network
0:32
800 Feet Under the Sea with Full Mobile Network
2.8K views3 months ago
YouTubeBeing Shivoo
Seikan Tunnel – The World's Longest Undersea Tunnel
0:08
Seikan Tunnel – The World's Longest Undersea Tunnel
37K viewsMay 11, 2025
YouTubeKnowBox
seikan tunnel
7:13
seikan tunnel
66.1K viewsAug 23, 2007
YouTubemojuvideo
Riding the Japan's Underwater Bullet Train from Hokkaido to Morioka
10:42
Riding the Japan's Underwater Bullet Train from Hokkaido to Mori…
8M viewsSep 9, 2021
YouTubeKuga's Travel
25:00
World’sFastest Underwater Bullet Train of Japan - 320Kmph| Japan …
214.1K views11 months ago
YouTubeNomadic Indian
9:38
Inside the World’s Deepest Undersea Tunnel 🚇 How Japan Buil…
307 views3 months ago
YouTubeFutureFlow Process
14:31
Inside Japan’s Seikan Tunnel: How the World’s Longest Underwater T…
3.1K views2 months ago
YouTubeBest Modern Factory
0:22
Did you know about "Seikan Tunnel: The World’s Longest Undersea Ra…
5K views11 months ago
YouTubeMindScope
16:00
Inside the World’s Deepest Undersea Tunnel: How Japan Buil…
418 views2 months ago
YouTubeBest Modern Factory
3:27
World's Longest Underwater Tunnel Seikan Tunnel 😎
4K viewsDec 8, 2020
YouTubeIQ Facts
1:45
🇯🇵 How Japan Built the World’s LONGEST Underwater Tunnel 😱
2.9K viewsMay 1, 2025
YouTubeTopoNerd
15:11
Japan's fastest bullet train "Hayabusa" running under the sea…
4.1M viewsNov 12, 2022
YouTubeITSUKA JAPAN
0:50
The Incredible Seikan Tunnel: Japan’s Undersea Engineering Ma…
23.2K views6 months ago
YouTubeEverythingAboutTheWorld
9:51
Undersea Rail Tunnel Between Japanese Islands: Seikan Tunnel …
153.7K viewsDec 23, 2023
YouTubeRailways Explained
0:44
Seikan Tunnel 😱 | How does a train run under the sea? #SeikanTunne…
959 views1 month ago
YouTubeFactRiders
2:47
Japan Built a 53.8 km Tunnel Under the Ocean 😳 | Seikan Tunnel Explai…
44 views2 weeks ago
YouTubeArchinnovation AI
21:48
The Truth Behind Japan’s "Billion-Dollar" Underwater Tunnel Projec…
226 views5 months ago
YouTube10 Royal Tech
0:36
Exploring the World's Longest Underwater Tunnel in Japan
228.5K viewsMar 10, 2023
TikTokabdulwahab_tv
0:52
Inside the Seikan Tunnel: Engineering Marvel Beneath the O…
9.2K viewsNov 5, 2024
YouTubeFarid Haq
8:43
Japan's Insane Construction Tech Creates the World's Longest Unde…
41.2K viewsMar 21, 2025
YouTubeDiscover The World
4:24
Inside the 54KM Seikan Underwater Tunnel: An Engineering Nightmare
150 views1 month ago
YouTubeUnfiltered Frontier
11:04
Korea and Japan's Hidden Undersea Mega Tunnel EXPOSED!
2.3K viewsDec 27, 2024
YouTubeMegalith
16:17
Inside the World’s Longest “UnderWater” Tunnel: How Japan …
13K views4 months ago
YouTubeCapitol Insider
10:30
The Only Japanese Bullet Train That Goes Underwater
2.1K viewsFeb 24, 2022
YouTubeLutzTrvl
23:00
Japanese engineers' underwater tunnel project shocked billions of …
4.3M viewsJan 19, 2025
YouTubePopuler WrldVideo
9:30
Japanese Engineers underwater tunnel project Shocked billions of …
248 views4 months ago
YouTubeCasual Voyage
23:46
Inside a World's Longest Underwater Tunnel: How the $200…
1K views4 months ago
YouTubebtnaty
See more videos
Static thumbnail place holder