subsidence

Satellite-based research shows that nearly half of China's major cities are experiencing moderate to severe subsidence, putting millions of people at risk.

Close to Vietnam, especially with Ho Chi Minh City: a river city. Not as spectacular as the Japanese, but the Thai people choose canals to resist natural flooding.

The land of Tehran, home to 15 million Iranians, is the largest city in West Asia, sinking at tremendous speed.

The 30m-long death pit suddenly appeared in the middle of a large road surface in Japan, causing many people to panic.

Satellite images show that two hundred-meter-diameter death holes in Texas, USA, are becoming increasingly larger and at risk of collapse, threatening the safety of 7,000 residents

New research through satellite images shows that many areas in Beijing, especially the commercial administrative center, are sinking to 11cm each year.

Settlement pit with a diameter of about 10m, 7m deep, sticking to the foot of a two-storey house of Mr. Nguyen Van Bac's family in My Duc (Hanoi).

Giant pit, also known as craters

Researchers discovered more than 3,000 deadly pits around the Dead Sea, an alarming increase in water resources management.

In recent weeks, underground caves have been constantly exposed on the streets, swallowing cars, buses, even large trucks, and killing at least 1 person.