Earth Sandwich / City antipodes / Sanaa
Antipode finder · Yemen
The antipode of
Sanaa.
Draw a straight line from Sanaa (15.35° N, 44.21° E) through the centre of the Earth and it comes out at 15.35° S, 135.79° W, in the South Pacific Ocean, 327 km from the nearest dry land. The other slice of an Earth sandwich would sink.
- Sanaa
- 15.35° N, 44.21° E · about 2,440 m above sea level · 1,937,451 people
- Antipode
- 15.35° S, 135.79° W
- What is there
- The South Pacific Ocean; the sea floor there lies about 4,360 m below the surface
- Nearest dry land
- 327 km from the antipode
- Nearest town
- Tapuarava, French Polynesia · 353 km from the antipode
- Nearest big city
- Guadalajara · 5,348 km from the antipode
- Sandwich verdict
- SOGGY the other slice lands in open water
- Nearest exact spot
- 617 km away, 84 km from Koûta Boûyya, Ethiopia ⇄ 93 km from Atuona, French Polynesia
Can you make an Earth sandwich from Sanaa?
No, not from Sanaa itself. The other slice would land in the South Pacific Ocean, 327 km from the nearest dry land, where the sea floor lies about 4,360 m below the surface. Boats do not count (Sandwich Law § 1.3).
The nearest place from which an exact Earth sandwich is possible is 617 km from Sanaa, 84 km from Koûta Boûyya, Ethiopia. Its other slice would go down 93 km from Atuona, French Polynesia.
How this was worked out: the antipode flips the latitude and moves the longitude by 180°. Land or sea comes from the OpenStreetMap coastline the map uses; the sandwich verdict and elevations come from the verifier's 0.2° grid (Natural Earth land, ETOPO 2022 relief); water names from Natural Earth; towns and populations from GeoNames. The city's position is GeoNames' point for it; a big city's suburbs spread tens of kilometres around that point, and the figures move with them. Generated 2026-09-29.