Earth Sandwich / City antipodes / Yokohama

Antipode finder · Japan

The antipode of
Yokohama.

Draw a straight line from Yokohama (35.43° N, 139.65° E) through the centre of the Earth and it comes out at 35.43° S, 40.35° W, in the South Atlantic Ocean, 1,080 km from the nearest dry land, off the coast of Brazil. The other slice of an Earth sandwich would sink.

Two globes: one centred on Yokohama, one centred on its antipode at 35.43° S, 40.35° W
Above YokohamaAbove the antipode
Yokohama
35.43° N, 139.65° E · at about sea level · 3,777,491 people
Antipode
35.43° S, 40.35° W
What is there
The South Atlantic Ocean; the sea floor there lies about 4,760 m below the surface
Nearest dry land
1,080 km from the antipode, on the coast of Brazil
Nearest town
Balneário Pinhal, Brazil · 1,087 km from the antipode
Nearest big city
Porto Alegre · 1,181 km from the antipode
Sandwich verdict
SOGGY the other slice lands in open water
Nearest exact spot
1,103 km away, 70 km from Kurio, Japan ⇄ near Xangri-lá, Brazil

Can you make an Earth sandwich from Yokohama?

No, not from Yokohama itself. The other slice would land in the South Atlantic Ocean, 1,080 km from the nearest dry land (Brazil), where the sea floor lies about 4,760 m below the surface. Boats do not count (Sandwich Law § 1.3).

The nearest place from which an exact Earth sandwich is possible is 1,103 km from Yokohama, 70 km from Kurio, Japan. Its other slice would go down 5 km from Xangri-lá, Brazil.

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.