Earth Sandwich / City antipodes / Madurai
Antipode finder · India
The antipode of
Madurai.
Draw a straight line from Madurai (9.92° N, 78.12° E) through the centre of the Earth and it comes out at 9.92° S, 101.88° W, in the South Pacific Ocean, 1,522 km from the nearest dry land, off the coast of Ecuador. The other slice of an Earth sandwich would sink.
- Madurai
- 9.92° N, 78.12° E · about 120 m above sea level · 1,465,625 people
- Antipode
- 9.92° S, 101.88° W
- What is there
- The South Pacific Ocean; the sea floor there lies about 4,600 m below the surface
- Nearest dry land
- 1,522 km from the antipode, on the coast of Ecuador
- Nearest town
- Puerto Villamil, Ecuador · 1,565 km from the antipode
- Nearest big city
- Trujillo · 2,517 km from the antipode
- Sandwich verdict
- SOGGY the other slice lands in open water
- Nearest exact spot
- 2,061 km away, near Jaisalmer, India ⇄ near Hanga Roa, Chile
Can you make an Earth sandwich from Madurai?
No, not from Madurai itself. The other slice would land in the South Pacific Ocean, 1,522 km from the nearest dry land (Ecuador), where the sea floor lies about 4,600 m below the surface. Boats do not count (Sandwich Law § 1.3).
The nearest place from which an exact Earth sandwich is possible is 2,061 km from Madurai, 25 km from Jaisalmer, India. Its other slice would go down 20 km from Hanga Roa, Chile.
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.