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Would the shaking of an earthquake be visible to somebody in a low-flying aircraft?

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10

2

$begingroup$

If you are in an airplane well above ground level, but low enough to see the faces of people relatively easily, and an earthquake happens, will you see the ground shake?

earthquakes

share|improve this question

edited Aug 5 at 5:36

Semidiurnal Simon

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asked Aug 5 at 4:39

carl sagancarl sagan

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$endgroup$

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  Hi carl sagan, welcome to the site. It's an interesting question. I've edited your title to relate to what you're asking.
  $endgroup$
  – Semidiurnal Simon
  Aug 5 at 5:37
  

  
  
  
  


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  @SemidiurnalSimon youtube.com/watch?v=m1tvMuXYtwI "Roger is that tower shaking or what ?"
  $endgroup$
  – gansub
  Aug 5 at 5:52
  

  
  
  
  


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  Is the plane "well above ground level" or "low enough to see the faces of people relatively easily"? The first suggests at least several hundred feet; the latter, at most a few tens of feet. Which is it?
  $endgroup$
  – David Richerby
  Aug 5 at 13:57
  

  
  
  
  


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  You can't easily see the faces of people from a low-flying airplane. Of the GA Cessna 172/Piper Cherokee type, anyway. (Maybe from an ultralight or purpose-designed bush plane that can fly really slowly.) Then you'd have the problem of distinguishing ground motion from your motion...
  $endgroup$
  – jamesqf
  Aug 5 at 17:19
  
  

  
  
  
  


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  You might be able to see ground motion like this: youtube.com/watch?v=7lPbCvwbhOg
  $endgroup$
  – Keith McClary
  Aug 6 at 2:22
  

  
  
  
  

add a comment | 

10

2

$begingroup$

If you are in an airplane well above ground level, but low enough to see the faces of people relatively easily, and an earthquake happens, will you see the ground shake?

earthquakes

share|improve this question

edited Aug 5 at 5:36

Semidiurnal Simon

3,98211 gold badge1313 silver badges3636 bronze badges

asked Aug 5 at 4:39

carl sagancarl sagan

5133 bronze badges

$endgroup$

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  Hi carl sagan, welcome to the site. It's an interesting question. I've edited your title to relate to what you're asking.
  $endgroup$
  – Semidiurnal Simon
  Aug 5 at 5:37
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  $begingroup$
  @SemidiurnalSimon youtube.com/watch?v=m1tvMuXYtwI "Roger is that tower shaking or what ?"
  $endgroup$
  – gansub
  Aug 5 at 5:52
  

  
  
  
  


• 
  
  
  

  
  7
  

  
  
  
  
  
  

  
  $begingroup$
  Is the plane "well above ground level" or "low enough to see the faces of people relatively easily"? The first suggests at least several hundred feet; the latter, at most a few tens of feet. Which is it?
  $endgroup$
  – David Richerby
  Aug 5 at 13:57
  

  
  
  
  


• 
  
  
  

  
  3
  

  
  
  
  
  
  

  
  $begingroup$
  You can't easily see the faces of people from a low-flying airplane. Of the GA Cessna 172/Piper Cherokee type, anyway. (Maybe from an ultralight or purpose-designed bush plane that can fly really slowly.) Then you'd have the problem of distinguishing ground motion from your motion...
  $endgroup$
  – jamesqf
  Aug 5 at 17:19
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  You might be able to see ground motion like this: youtube.com/watch?v=7lPbCvwbhOg
  $endgroup$
  – Keith McClary
  Aug 6 at 2:22
  

  
  
  
  

add a comment | 

$begingroup$

If you are in an airplane well above ground level, but low enough to see the faces of people relatively easily, and an earthquake happens, will you see the ground shake?

earthquakes

share|improve this question

edited Aug 5 at 5:36

Semidiurnal Simon

3,98211 gold badge1313 silver badges3636 bronze badges

asked Aug 5 at 4:39

carl sagancarl sagan

5133 bronze badges

$endgroup$

share|improve this question

edited Aug 5 at 5:36

Semidiurnal Simon

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asked Aug 5 at 4:39

carl sagancarl sagan

5133 bronze badges

share|improve this question

edited Aug 5 at 5:36

Semidiurnal Simon

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asked Aug 5 at 4:39

carl sagancarl sagan

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edited Aug 5 at 5:36

Semidiurnal Simon

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edited Aug 5 at 5:36

Semidiurnal Simon

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asked Aug 5 at 4:39

carl sagancarl sagan

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asked Aug 5 at 4:39

carl sagancarl sagan

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3 Answers
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It depends largely on how deep, or shallow, the earthquake is, how large, and what kind of terrain you're looking down on. Some fairly large earthquakes, magnitude 6-7, can have very little surface effect, when they are centred 5+km down as many earthquakes in New Zealand often are. The finer the sediment on the surface, and the thicker the sediment cover, the greater the ground shaking is at the surface and the more motion is usually visible. Different ground covers will also make shaking more or less visible, long grass, or cereal crops, on a windy day will look like they're in motion even without a 'quake.

Shallow earthquakes often result in apparent L-wave activity, by which I mean that you can actually watch the ground wave coming towards you if you're outside on relatively flat ground, even during relatively small 3-4 pointer 'quakes. These waves also make parked vehicles rock from side to side, I would expect these effects to be the most visible from the air in the case of small to moderate earthquakes.

Larger 'quakes will cause noticeable shaking of buildings, power poles, aerials etc... even when quite deep and possibly distortion to large linear features such as roads, railways, waterways, and crop and orchard rows. These distortions would be visible as they form, and, when large enough, from very high in the air.

share|improve this answer

answered Aug 5 at 12:20

AshAsh

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You can see dust clouds rising from the ground after significant earthquakes.

share|improve this answer

answered Aug 5 at 20:02

Bob CarrollBob Carroll

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Whether you would see the ground shake or not depends on the magnitude of the earthquake. If you are talking about the kind of quakes we have in Britain, then no, you wouldn't see anything. Even on the ground you wouldn't see anything, though you might feel the vibrations (I have felt them myself). On the other hand, if you mean the sort of magnitude 7 or 8 earthquakes sometimes experienced in places along the San Andreas fault in California, in Iran, Japan, Indonesia and other parts of the world, you most certainly would see the quake happening from a low flying plane. Sometimes these huge quakes open up great cracks in the earth, stretching for hundreds of metres, roads are severed in a fraction of a second, with the two ends severely misaligned, bridges collapse, the tops of tall buildings sway, and so on.

share|improve this answer

answered Aug 5 at 8:27

Michael WalsbyMichael Walsby

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9

$begingroup$

It depends largely on how deep, or shallow, the earthquake is, how large, and what kind of terrain you're looking down on. Some fairly large earthquakes, magnitude 6-7, can have very little surface effect, when they are centred 5+km down as many earthquakes in New Zealand often are. The finer the sediment on the surface, and the thicker the sediment cover, the greater the ground shaking is at the surface and the more motion is usually visible. Different ground covers will also make shaking more or less visible, long grass, or cereal crops, on a windy day will look like they're in motion even without a 'quake.

Shallow earthquakes often result in apparent L-wave activity, by which I mean that you can actually watch the ground wave coming towards you if you're outside on relatively flat ground, even during relatively small 3-4 pointer 'quakes. These waves also make parked vehicles rock from side to side, I would expect these effects to be the most visible from the air in the case of small to moderate earthquakes.

Larger 'quakes will cause noticeable shaking of buildings, power poles, aerials etc... even when quite deep and possibly distortion to large linear features such as roads, railways, waterways, and crop and orchard rows. These distortions would be visible as they form, and, when large enough, from very high in the air.

share|improve this answer

answered Aug 5 at 12:20

AshAsh

2,43533 silver badges1818 bronze badges

$endgroup$

add a comment | 

9

$begingroup$

It depends largely on how deep, or shallow, the earthquake is, how large, and what kind of terrain you're looking down on. Some fairly large earthquakes, magnitude 6-7, can have very little surface effect, when they are centred 5+km down as many earthquakes in New Zealand often are. The finer the sediment on the surface, and the thicker the sediment cover, the greater the ground shaking is at the surface and the more motion is usually visible. Different ground covers will also make shaking more or less visible, long grass, or cereal crops, on a windy day will look like they're in motion even without a 'quake.

Shallow earthquakes often result in apparent L-wave activity, by which I mean that you can actually watch the ground wave coming towards you if you're outside on relatively flat ground, even during relatively small 3-4 pointer 'quakes. These waves also make parked vehicles rock from side to side, I would expect these effects to be the most visible from the air in the case of small to moderate earthquakes.

Larger 'quakes will cause noticeable shaking of buildings, power poles, aerials etc... even when quite deep and possibly distortion to large linear features such as roads, railways, waterways, and crop and orchard rows. These distortions would be visible as they form, and, when large enough, from very high in the air.

share|improve this answer

answered Aug 5 at 12:20

AshAsh

2,43533 silver badges1818 bronze badges

$endgroup$

add a comment | 

$begingroup$

It depends largely on how deep, or shallow, the earthquake is, how large, and what kind of terrain you're looking down on. Some fairly large earthquakes, magnitude 6-7, can have very little surface effect, when they are centred 5+km down as many earthquakes in New Zealand often are. The finer the sediment on the surface, and the thicker the sediment cover, the greater the ground shaking is at the surface and the more motion is usually visible. Different ground covers will also make shaking more or less visible, long grass, or cereal crops, on a windy day will look like they're in motion even without a 'quake.

Shallow earthquakes often result in apparent L-wave activity, by which I mean that you can actually watch the ground wave coming towards you if you're outside on relatively flat ground, even during relatively small 3-4 pointer 'quakes. These waves also make parked vehicles rock from side to side, I would expect these effects to be the most visible from the air in the case of small to moderate earthquakes.

Larger 'quakes will cause noticeable shaking of buildings, power poles, aerials etc... even when quite deep and possibly distortion to large linear features such as roads, railways, waterways, and crop and orchard rows. These distortions would be visible as they form, and, when large enough, from very high in the air.

share|improve this answer

answered Aug 5 at 12:20

AshAsh

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$endgroup$

share|improve this answer

answered Aug 5 at 12:20

AshAsh

2,43533 silver badges1818 bronze badges

answered Aug 5 at 12:20

AshAsh

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answered Aug 5 at 12:20

AshAsh

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1

$begingroup$

You can see dust clouds rising from the ground after significant earthquakes.

share|improve this answer

answered Aug 5 at 20:02

Bob CarrollBob Carroll

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$endgroup$

add a comment | 

1

$begingroup$

You can see dust clouds rising from the ground after significant earthquakes.

share|improve this answer

answered Aug 5 at 20:02

Bob CarrollBob Carroll

1111 bronze badge

$endgroup$

add a comment | 

$begingroup$

You can see dust clouds rising from the ground after significant earthquakes.

share|improve this answer

answered Aug 5 at 20:02

Bob CarrollBob Carroll

1111 bronze badge

$endgroup$

share|improve this answer

answered Aug 5 at 20:02

Bob CarrollBob Carroll

1111 bronze badge

answered Aug 5 at 20:02

Bob CarrollBob Carroll

1111 bronze badge

answered Aug 5 at 20:02

Bob CarrollBob Carroll

1111 bronze badge

0

$begingroup$

Whether you would see the ground shake or not depends on the magnitude of the earthquake. If you are talking about the kind of quakes we have in Britain, then no, you wouldn't see anything. Even on the ground you wouldn't see anything, though you might feel the vibrations (I have felt them myself). On the other hand, if you mean the sort of magnitude 7 or 8 earthquakes sometimes experienced in places along the San Andreas fault in California, in Iran, Japan, Indonesia and other parts of the world, you most certainly would see the quake happening from a low flying plane. Sometimes these huge quakes open up great cracks in the earth, stretching for hundreds of metres, roads are severed in a fraction of a second, with the two ends severely misaligned, bridges collapse, the tops of tall buildings sway, and so on.

share|improve this answer

answered Aug 5 at 8:27

Michael WalsbyMichael Walsby

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$endgroup$

add a comment | 

0

$begingroup$

Whether you would see the ground shake or not depends on the magnitude of the earthquake. If you are talking about the kind of quakes we have in Britain, then no, you wouldn't see anything. Even on the ground you wouldn't see anything, though you might feel the vibrations (I have felt them myself). On the other hand, if you mean the sort of magnitude 7 or 8 earthquakes sometimes experienced in places along the San Andreas fault in California, in Iran, Japan, Indonesia and other parts of the world, you most certainly would see the quake happening from a low flying plane. Sometimes these huge quakes open up great cracks in the earth, stretching for hundreds of metres, roads are severed in a fraction of a second, with the two ends severely misaligned, bridges collapse, the tops of tall buildings sway, and so on.

share|improve this answer

answered Aug 5 at 8:27

Michael WalsbyMichael Walsby

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$endgroup$

add a comment | 

$begingroup$

Whether you would see the ground shake or not depends on the magnitude of the earthquake. If you are talking about the kind of quakes we have in Britain, then no, you wouldn't see anything. Even on the ground you wouldn't see anything, though you might feel the vibrations (I have felt them myself). On the other hand, if you mean the sort of magnitude 7 or 8 earthquakes sometimes experienced in places along the San Andreas fault in California, in Iran, Japan, Indonesia and other parts of the world, you most certainly would see the quake happening from a low flying plane. Sometimes these huge quakes open up great cracks in the earth, stretching for hundreds of metres, roads are severed in a fraction of a second, with the two ends severely misaligned, bridges collapse, the tops of tall buildings sway, and so on.

share|improve this answer

answered Aug 5 at 8:27

Michael WalsbyMichael Walsby

1,34422 silver badges66 bronze badges

$endgroup$

share|improve this answer

answered Aug 5 at 8:27

Michael WalsbyMichael Walsby

1,34422 silver badges66 bronze badges

answered Aug 5 at 8:27

Michael WalsbyMichael Walsby

1,34422 silver badges66 bronze badges

answered Aug 5 at 8:27

Michael WalsbyMichael Walsby

1,34422 silver badges66 bronze badges