Seikan Tunnel

undersea railway tunnel in Japan connecting Hokkaido and Honshu
Place railway_tunnel Q99250
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Seikan Tunnel

Summary

Seikan Tunnel is a railway tunnel[1]. It ranks in the top 0.93% of railway_tunnel entities by monthly Wikipedia readership (2,633 views/month, #2 of 214).[2]

Key Facts

  • Seikan Tunnel is located in Imabetsu[3].
  • Seikan Tunnel is located in Shiriuchi[4].
  • Seikan Tunnel is in the country of Japan[5].
  • Seikan Tunnel's instance of is recorded as railway tunnel[6].
  • Seikan Tunnel's instance of is recorded as undersea tunnel[7].
  • Seikan Tunnel is owned by Japan Railway Construction, Transport and Technology Agency[8].
  • Seikan Tunnel is operated by Hokkaido Railway Company[9].
  • Seikan Tunnel is operated by Japan Freight Railway Company[10].
  • Seikan Tunnel's crosses is recorded as Tsugaru Strait[11].
  • Seikan Tunnel's Commons category is recorded as Seikan Tunnel[12].
  • Seikan Tunnel comprises Yoshioka-Kaitei Station[13].
  • Seikan Tunnel comprises Tappi-Kaitei Station[14].
  • Seikan Tunnel's terminus is recorded as Honshu[15].
  • March 10, 1985 marks the founding of Seikan Tunnel[16].
  • Seikan Tunnel's coordinate location is recorded as {'lat': 41.3157, 'lon': 140.3351}[17].
  • Seikan Tunnel's significant event is recorded as start of construction[18].
  • Seikan Tunnel's official website is recorded as https://www.jrhokkaido.co.jp/network/seikan/[19].
  • Seikan Tunnel's topic's main category is recorded as Category:Seikan Tunnel[20].
  • Seikan Tunnel's type of electrification is recorded as 25 kV, 50 Hz AC railway electrification[21].
  • Seikan Tunnel's Commons gallery is recorded as Seikan Tunnel[22].
  • Seikan Tunnel's track gauge is recorded as standard-gauge railway[23].
  • Seikan Tunnel's track gauge is recorded as 1067 mm track gauge[24].
  • Seikan Tunnel's replaces is recorded as Seikan Ferry[25].
  • Seikan Tunnel's date of official opening is recorded as March 13, 1988[26].
  • Seikan Tunnel's native label is recorded as {'lang': 'ja', 'text': '青函トンネル'}[27].

Body

Geography

Seikan Tunnel is in the country of Japan[5]. Located in include Imabetsu[3], a town of Japan[28], in Japan[29], founded in 1955[30] and Shiriuchi[4], a town of Japan[31], in Japan[32], founded in 1906[33].

Physical Characteristics

Seikan Tunnel's length is recorded as {'unit': 'Q11573', 'amount': '+53850'}[34].

Designation and Status

Recorded instance of include railway tunnel[6] and undersea tunnel[7].

History and Context

March 10, 1985 marks the founding of Seikan Tunnel[16]. It is owned by Japan Railway Construction, Transport and Technology Agency[8].

Why It Matters

Seikan Tunnel ranks in the top 0.93% of railway_tunnel entities by monthly Wikipedia readership (2,633 views/month, #2 of 214).[2] It has Wikipedia articles in 29 language editions, a strong signal of global cultural recognition.[35] It is known by 7 alternative names across languages and contexts.[36]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [5] . wikidata.org.
  2. [6] . wikidata.org.
  3. [7] . wikidata.org.
  4. [8] . wikidata.org.
  5. [3] . wikidata.org.
  6. [4] . wikidata.org.
  7. [9] . wikidata.org.
  8. [10] . wikidata.org.
  9. [11] . wikidata.org.
  10. [12] . wikidata.org.
  11. [13] . wikidata.org.
  12. [14] . wikidata.org.
  13. [15] . wikidata.org.
  14. [16] . wikidata.org.
  15. [17] . wikidata.org.
  16. [18] . jr.hakodate.jp. Retrieved . jr.hakodate.jp. Provenance: wikidata.org.
  17. [19] . wikidata.org.
  18. [20] . wikidata.org.
  19. [21] . wikidata.org.
  20. [22] . wikidata.org.
  21. [23] . wikidata.org.
  22. [24] . wikidata.org.
  23. [25] . wikidata.org.
  24. [26] . jr.hakodate.jp. Retrieved . jr.hakodate.jp. Provenance: wikidata.org.
  25. [27] . wikidata.org.
  26. [34] . wikidata.org.

Inline context (facts about related entities)

  1. [28] . Wikidata. wikidata.org. → on this site
  2. [29] . Wikidata. wikidata.org. → on this site
  3. [30] . Wikidata. wikidata.org. → on this site
  4. [31] . Wikidata. wikidata.org. → on this site
  5. [32] . Wikidata. wikidata.org. → on this site
  6. [33] . Wikidata. wikidata.org. → on this site

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [35] . Wikidata sitelinks. wikidata.org.
  3. [36] . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Seikan Tunnel. Retrieved May 3, 2026, from https://4ort.xyz/entity/seikan-tunnel
MLA “Seikan Tunnel.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/seikan-tunnel.
BibTeX @misc{4ortxyz_seikan-tunnel_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Seikan Tunnel}}, year = {2026}, url = {https://4ort.xyz/entity/seikan-tunnel}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Seikan Tunnel — https://4ort.xyz/entity/seikan-tunnel (retrieved 2026-05-03)

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Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 7d ago · Nyuhn · 2026-07-10 view diff on Wikidata ↗
    P14541 2Ue7my
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/40849|batch #40849]]: ZGBK ID"
  2. 4w ago · Vicarage · 2026-06-14 view diff on Wikidata ↗
    Inception
    Type of electrification 25 kV, 50 Hz AC railway electrification
    Carries thoroughfare Hokkaido Shinkansen, Kaikyō Line
    Track gauge standard-gauge railway, 1067 mm track gauge
    + 29 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update-languages-short:0||en-gb */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/36491|batch #36491]]"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.