<p>Your question should have been much more concise, it is too rambling and long-winded. With regard to your paragraph on creating a new branch of diving, it also deviates into the world of sport. The marks I saw in your video looked as though they were made by skaters, but you ask whether there is a natural method that a frozen lake could develop a crack without human intervention, so I will give you one, though it probably doesn't explain the marks on Lake Baikal.</p>

<p>If a large lake gets frozen over, It may have a small stream or other drainage system which very gradually lowers the water level  beneath the ice. In summer other streams and rainfall replenish it,so the two things balance each other out and the water level usually remains the same. However, what might happen in the winter is that after the Ice has formed, the seepage gradually creates an air gap under the ice. Deprived of support in the middle of the lake, the ice will begin to sag, and if it sags enough, the ice will crack. </p>

CC BY-SA 4.0
2019-12-11T19:04:39.127Z
I just fixed up my question. I didn't think carefully. I thought it wouldn't invalidate your answer and now I see that it does. What should I do? I didn't know at the time I asked it that other people weren't going to willingly and happily devote a lot of time to the long project of gathering information that I described in the details. There probably are some people who would. They're just nearly impossible to fine. Maybe if the world finds the right complex research technique, there will be a nice easy method of locating through complex interaction, people who have a demand to participate in
Timothy
CC BY-SA 4.0
2019-12-11T19:04:50.220Z
research on a specific thing.
Timothy
CC BY-SA 4.0
2019-12-11T09:02:31.600Z
2019-12-11T09:02:31.600Z
Michael Walsby
<p>The YouTube video <a href="https://www.youtube.com/watch?v=Iv7n6QEIHIw" rel="nofollow noreferrer">Skating Lake Baikal, the world's deepest lake - BBC News</a> shows a very heavily cracked lake. It doesn't just appear to be a fault line. It appears to be an actual crack that started that goes all the way to the surface. I believe it's natural. I have two questions. My first question is</p>

<blockquote>
  <p>When an ice layer on a frozen lake is cracked the way I described, is it plausible that it happened completely naturally with no human intervention such as having walked on it when it was thin?</p>
</blockquote>

<p>My second question is</p>

<blockquote>
  <p>If the answer to my first question is yes, then what is one plausible cause of it?</p>
</blockquote>

<p>If the answer to the first question is yes, I really only need the answer of one plausible cause of ice being cracked in that way without human intervention. However, it would be nice if you could give me as many plausible causes from fundamentally different categories as you can find.</p>

CC BY-SA 4.0
2019-12-11T21:24:12.850Z
https://www.cbc.ca/news/canada/saskatchewan/sask-last-mountain-lake-ice-break-1.4473173 , https://www.theverge.com/2017/1/15/14253688/frozen-lake-sound-star-wars-acoustics
Keith McClary
<meteorology><lakes><winter>
Why is the ice on a frozen lake sometimes cracked?
Timothy
# Why is the ice on a frozen lake sometimes cracked?

(Asked by: username_0 on 2019-12-11)

The YouTube video [Skating Lake Baikal, the world's deepest lake - BBC News](https://www.youtube.com/watch?v=Iv7n6QEIHIw) shows a very heavily cracked lake. It doesn't just appear to be a fault line. It appears to be an actual crack that started that goes all the way to the surface. I believe it's natural. I have two questions. My first question is

> When an ice layer on a frozen lake is cracked the way I described, is it plausible that it happened completely naturally with no human intervention such as having walked on it when it was thin?

My second question is

> If the answer to my first question is yes, then what is one plausible cause of it?

If the answer to the first question is yes, I really only need the answer of one plausible cause of ice being cracked in that way without human intervention. However, it would be nice if you could give me as many plausible causes from fundamentally different categories as you can find.

**Tags:** meteorology, lakes, winter

> **Comments:**
> **username_1**: https://www.cbc.ca/news/canada/saskatchewan/sask-last-mountain-lake-ice-break-1.4473173 , https://www.theverge.com/2017/1/15/14253688/frozen-lake-sound-star-wars-acoustics  

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## 1 answers

### Answer by username_2 on 2019-12-11. Score: 0

Your question should have been much more concise, it is too rambling and long-winded. With regard to your paragraph on creating a new branch of diving, it also deviates into the world of sport. The marks I saw in your video looked as though they were made by skaters, but you ask whether there is a natural method that a frozen lake could develop a crack without human intervention, so I will give you one, though it probably doesn't explain the marks on Lake Baikal.

If a large lake gets frozen over, It may have a small stream or other drainage system which very gradually lowers the water level beneath the ice. In summer other streams and rainfall replenish it,so the two things balance each other out and the water level usually remains the same. However, what might happen in the winter is that after the Ice has formed, the seepage gradually creates an air gap under the ice. Deprived of support in the middle of the lake, the ice will begin to sag, and if it sags enough, the ice will crack.

> **Comments:**
> **username_0**: I just fixed up my question. I didn't think carefully. I thought it wouldn't invalidate your answer and now I see that it does. What should I do? I didn't know at the time I asked it that other people weren't going to willingly and happily devote a lot of time to the long project of gathering information that I described in the details. There probably are some people who would. They're just nearly impossible to fine. Maybe if the world finds the right complex research technique, there will be a nice easy method of locating through complex interaction, people who have a demand to participate in  
> **username_0**: research on a specific thing.  

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