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Tag: sinkhole

Satellites confirm sinking of San Francisco tower

The Sentinel-1 satellites have shown that the Millennium Tower skyscraper in the centre of San Francisco is sinking by a few centimetres a year....

Biggest, Deepest and Devastating Sinkholes around the World

Qattara Depression, Egypt The Qattara Depression is a depression in the north west of Egypt in the Matruh Governorate and is part of the Western...

Great Blue Hole

The Great Blue Hole is a giant submarine sinkhole off the coast of Belize. It lies near the center of Lighthouse Reef, a small...

Mysterious Siberian hole likely due to methane buildup and release

A team of Russian researchers who visited the site of one of the mysterious holes that have appeared in the ground in parts of...


A sinkhole, also known as a sink-hole, sink, swallow hole, shakehole, swallet or doline, is a natural depression or hole in the Earth's surface...


Cretaceous Period

Pennsylvanian Period