10 Cities Around the World That Are Sinking

Hanoi, Vietnam

The city has 1,695.51 square kilometers of land with an elevation less than 10 meters, leading to serious concerns about its vulnerability to flooding

Chittagong, Bangladesh

Chittagong, with a maximum subsidence rate of 23.52 mm annually, has 44.28 square kilometers of low-elevation area sinking faster than 2 mm per year

Kobe, Japan

Kobe is experiencing rapid land subsidence at a maximum rate of 22.64 mm per year. This affects 41.86 square kilometers of land below 10 meters

Kerala, India

In Kerala, 793.14 square kilometers of low-elevation land is subsiding faster than the rising sea levels.

Houston, USA

Despite efforts in the 1970s to mitigate subsidence, Houston continues to sink at a maximum rate of 19.47 mm annually

Dhaka, Bangladesh

Dhaka faces significant land subsidence challenges with a maximum rate of 18.29 mm annually.

Bangkok, Thailand

Bangkok, one of Thailand's most populous cities, has over 1000 square kilometers of low-elevation areas subsiding rapidly, with a maximum rate of 17.15 mm per year

Quanzhou, China

Located in southern Fujian, Quanzhou's maximum subsidence rate is 16.61 mm annually, placing it among the world's fastest-sinking cities and affecting its coastal infrastructure.

Alexandria, Egypt

Situated at the Nile River Delta's edge, Alexandria is experiencing rapid subsidence with 122.24 square kilometers sinking faster than sea levels rise.

Chennai, India

Chennai, the capital of Tamil Nadu, is subsiding at a maximum rate of 15.53 mm annually. This has led to a significant area of 38.38 square kilometers sinking faster than 2 mm per year