What is the deepest known point in the Earth's seabed?
Tonga Trench
Challenger Deep
Milwaukee Deep
Philippine Trench
The Challenger Deep is the deepest known point in the Earth's seabed hydrosphere, with a depth of 10,898 to 10,916 m by direct measurement from submersibles, and slightly more by sonar bathymetry. It is in the Pacific Ocean, at the southern end of the Mariana Trench near the Mariana Islands group. The Challenger Deep is a relatively small slot-shaped depression in the bottom of a considerably larger crescent-shaped oceanic trench.
reach: rather globaldiscoveriesgeographyoceansPacific Oceanrecordsresearchers
Answers by country
Tonga Trench
Challenger Deep
Milwaukee Deep
Philippine Trench
answers
Italy
48
Australia
44
Pakistan
13
Republic of Ireland
30
the United States
336
Greece
32
Thailand
15
France
15
Poland
4280
India
74
the Netherlands
29
Canada
30
the United Kingdom
170
Germany
412
Austria
90
Spain
15
the Philippines
15
Switzerland
31
Israel
14