What is the maximum depth of permafrost?

1,5 m
15 m
150 m
1500 m
In areas of harsh winters the depth of the per­mafrost can be as much as 1,493 m (4,898 ft) in the northern Lena and Yana River basins. The over­ly­ing active layer that sea­son­al­ly thaws is just 0.6–4 m (2.0–13 ft) thick.

Answers distribution

1,5 m
15 m
150 m
1500 m
answers
flagFinland
0%
0%
5%
94%
19
flagItaly
0%
3%
11%
85%
27
flagGermany
4%
6%
20%
69%
110
flagNorway
5%
11%
11%
66%
18
flagRussia
9%
9%
18%
63%
11
flagSpain
0%
9%
27%
63%
11
flagTurkey
0%
20%
20%
60%
10
flagRepublic of Ireland
10%
10%
21%
57%
28
flagPoland
8%
15%
23%
51%
8444
flagIndia
7%
15%
25%
50%
40
flagFrance
4%
25%
20%
50%
24
flagthe Philippines
0%
20%
30%
50%
10
flagthe Netherlands
4%
16%
32%
48%
25
flagthe United Kingdom
9%
18%
24%
46%
182
flagDenmark
7%
35%
14%
42%
14
flagthe United States
9%
18%
32%
38%
239
flagAustralia
22%
27%
9%
36%
22
flagUkraine
0%
20%
50%
30%
10
flagCanada
25%
12%
32%
29%
31
flagUU
26%
13%
33%
26%
15

Gender

men53%
women51%
1,5 m
9%
7%
15 m
15%
15%
150 m
21%
25%
1500 m
53%
51%

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What is the maximum depth of permafrost?
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Author: Kasia
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