Lesson 1/34 min

The Bay of Bengal

About the Bay of Bengal

  • The world's largest bay, triangular, in the north of the Indian Ocean
  • Area about 2,172,000 sq km (Khandokar)
  • Average depth 8,500 ft (Khandokar gives 2,300 m, Zubair 2,600 m)
  • The Bengal Fan landform lies here
  • West: India and Sri Lanka; north: India and Bangladesh; east: Myanmar and Thailand
  • India's Andaman and Nicobar Islands lie in the middle; India has the largest stretch of coast on it
  • The 90°E meridian runs almost through the middle of the bay

Watch out: Average depth: the books print 2,300 m and 2,600 m, both next to 8,500 ft (about 2,590 m); the numbers do not match. Remember ‘8,500 ft’ and be careful with the metre figure.

Swatch of No Ground

  • A deep trench in the Bay of Bengal; also called the Gangakhat
  • A submarine canyon; 14 km wide
  • About 1,200 m deep at the edge of the continental shelf

Ninety East Ridge and coastal ports

  • Ninety East Ridge: an important feature of the Indian Ocean, linked with Bangladesh's part of the Bay
  • Ports and beaches on its shores include Gopalpur, Marina Beach, Tuticorin, Akyab and Nagapali (Zubair; one or two names are unclear and left out)

Check yourself

What is another name for the Swatch of No Ground?

At a glance

  1. 1

    The Bay of Bengal is the world's largest bay, triangular, about 2.172 million sq km.

  2. 2

    Average depth 8,500 ft.

  3. 3

    Swatch of No Ground = Gangakhat, a submarine canyon, 14 km wide.

  4. 4

    West: India-Sri Lanka, east: Myanmar-Thailand; the Andaman-Nicobar Islands sit in the middle.