What Causes Earthquakes?


The world around you is just full of things
that are on the move. Airplanes in the sky, cars on the road and
tons of animals — including you and me! — are walking around everywhere. But you know what? It turns out that the ground beneath your
feet is moving too! Most of the time, you can’t feel it. Because, most of the time, the ground is moving
very slowly. But when you do feel the ground move, that’s
called an earthquake. During an earthquake, the ground shakes—sometimes
a little, and sometimes a lot. It might seem kind of strange that the ground,
which holds up houses and skyscrapers and everything else, can actually move. But it does—and it’s all because of the
way the Earth is made. If you could cut the Earth in half, and look
at it like this, you’d see that the Earth isn’t a solid ball all the way through. It has layers—kind of like a cake! The top, or outside layer of the Earth…what
we think of as the ground…is called the crust. Now, even though the crust of the Earth is
certainly very strong—it’s not made of one big piece. The Earth’s crust is actually made of many
big pieces that fit together. You can think of these pieces as being like
the pieces of a giant jigsaw puzzle. And we call these pieces of the crust plates. Now, the edges of these plates aren’t smooth
along their edges, like the edges of the plates you eat off of These plates are made of very thick layers
of rock—so their edges are bumpy and ragged, with rocky chunks sticking out of them. And it’s these plates that make up the Earth’s
crust that are always moving. Like I said earlier, you usually can’t feel
or see them moving, because they move very, very slowly. Most plates just creep along at about one
or two centimeters a year. That’s slower than your fingernails grow! But how do these moving plates cause earthquakes? Well, if you look at pieces of a puzzle, you’ll
see there there’s a gap between the pieces where they touch. And, there’s a line where the plates touch,
too. We call that line a fault. Some faults are very thin, and too small to
be seen. And some are very deep in the Earth’s crust. But some faults are really big, and you can
see them right on the Earth’s surface. For example, this fault, which runs almost
the whole length of the state of California, is more than a thousand kilometers long! And faults are where most earthquakes happen. As the plates of the Earth’s crust move
past each other at a fault, the pieces of rock that stick out of their sides sometimes
bump into one another. And when this happens, the ground above the
plates—and anything on the ground—shakes. But, sometimes the plates do more than just
bump into each other. They get stuck! Have you ever tried to open a door that’s
stuck? You push and push…and then, all of a sudden…it
opens really fast and bangs against the wall! Well, sometimes, two different plates can’t
move past each other…and they get stuck. But they keep trying to move! They push against each other, just like you
pushing against that stuck door! When two things push against each other, the
force of all of that pushing causes what we call pressure. And if the thing that’s being pushed doesn’t
move, that pressure has nowhere to go. So it just keeps building up. In the case of our plates of crust, the pressure
builds up where they’re stuck. It builds and builds…until the rocks break…and
the plates suddenly move. This causes the ground above the plates to
shake … sometimes a lot. How much the ground shakes depends on how
much pressure has built up between the plates. The more pressure…the bigger the earthquake. So there’s a lot of cool stuff happening
beneath your feet! Even if — most of the time — you can’t
even feel it! Thanks for joining us on SciShow Kids! We love viewer questions…so if you have
a question about something you see, ask a grownup to help you leave a comment down below,
or send us an e-mail to [email protected]!

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100 Responses

  1. Lizzie Kats Deadly place says:

    Its called tetonic plates

  2. Reksa Dipayana says:

    Can earthquake make big wave🌊😲🌍

  3. Hussain Jafri says:

    how did everything appr

  4. sonic the master Nunez says:

    Earthquicks happen from Los Ángeles to california

  5. JAVA Wraith says:

    How are babys made?

  6. Megan Hecimovich says:

    OHHHHHYAAAA

  7. Reilly Mander says:

    Mads (9) and Milo (6) from Stratford ON, want to know about how the Marianas trench was formed.

  8. Ganesh Ramachandran says:

    where did the 7 contintents come from

  9. Lin Ye says:

    awesome I learnt a billion facts

  10. Shawn Chan says:

    You guys are smart people

  11. Sabah Ahtisham says:

    A

  12. Iam Rocker says:

    Show the videos of simple machine

  13. Timbo Slice says:

    Do dolphins see Ultraviolet light

  14. Vivian Rodriguez says:

    What causes gravity

  15. Zelda Fan says:

    Jujus technique tsunamis are caused by underwater earthquakes

  16. Anime Lover says:

    One time I had an earthquake but it was 3 seconds cool right

  17. AH - 05GL - Plum Tree Park PS (1565) says:

    video about tips for earthquakes please!

  18. Osasu Angel Adodo says:

    Where did earthquake come from?🤔🤔🤔🤔🤔

  19. Taslima khan says:

    whats a sinkhole and how it forms

  20. Vasundhra Lathar says:

    You deserve more likes and subscribers!

  21. THE KEEM BOI says:

    They have layers like ogres and onions

  22. Hani / says:

    🇺🇸
    🌊

  23. Zelda Fan says:

    Jujus techneque a tsunami is caused by large water displacement

  24. venkat347 says:

    Do formation of mountains form earthquakes

  25. Science Help says:

    I couldn't understand what's a fault?

  26. Jayme Cabanayan says:

    What is the affect of the scientist in dividing Earth's lightosphere into several plates??

  27. Wendy Rubiano says:

    In California

  28. Ashanti Fraser says:

    You’re brilliant

  29. Izzy Unicorn says:

    2018 anyone?

  30. Leah Jones says:

    Great video! My girls would love a video about the different uses for trees please.

  31. Parker Magnolia says:

    How are baby’s made?

  32. Mhhvkpgacm Shirsha says:

    Why does your body pain

  33. Vx Harra says:

    Wow so interesting (NOT)

  34. Hailey Mohammed says:

    Hey there

  35. Addison Kutz says:

    3:31

  36. mrkianbian says:

    What is for lunch

  37. Adam Cooper says:

    I have a question for you two answer in your next video: Why do I cringe when I watch your videos?

  38. Adam Cooper says:

    Shoutout to the kid at 0:23

  39. Adam Cooper says:

    He is T-posing at 0:25

  40. Adam Cooper says:

    Shoutout to the snail 1:36

  41. Helen Kathryn Hoover says:

    How does magma cool

  42. Swaggy 22 233 says:

    Who has a test today and freaky out so they search up what it is about

  43. Google user says:

    Very nice, and exciting. Thanks mam

  44. Yolitzy Lizeth Ortiz Cardenas says:

    Wow that so cool

  45. Geney Chin says:

    Science 😻😻😻

  46. Freiya Maharashtri A. Lubis says:

    now i get it

  47. Freiya Maharashtri A. Lubis says:

    thanks for teaching XD

  48. Freiya Maharashtri A. Lubis says:

    why are some things edible and some are not

  49. Kid Trunks says:

    Nokia

  50. Abdulaziz Al-Jadaan says:

    Cute mouse plush!

  51. Abdulaziz Al-Jadaan says:

    I have a challenge for you:
    How do mountains form?

  52. Kieley Shepardson says:

    haha ??????????????????

  53. Kieley Shepardson says:

    im a shelledy kid we watch you vidoes in our class

  54. Crispy Johnny says:

    im about to shoot that rat if it keeps shaking his head up and down

  55. Alaa Khalil says:

    How is the volcanoes fromed

  56. KT - 06AM - Walnut Grove PS (1416) says:

    Do natural disasters cause lots of damage depending on were they are please answer

  57. Sean Gamel says:

    you suck

  58. Char Maddela says:

    How are bugs made & how do wrinkly fingers come to your body

  59. Sa Salima says:

    Thanks that was a very good explanation

  60. proxyz623 proxyz623 says:

    why is the air cold or hot

  61. Misty De Jesus says:

    Thanks for this very educational video. Very good example that kids could easily understand why it occurs

  62. It’s Kayla Ianson says:

    How do you volcanoes 🌋 occur?

  63. Rihanna Lowe says:

    how does a wirl pool form and how does it work

  64. Joseph Maurer says:

    I LOVE EARTHQUAKES

  65. KillCode9Playz Fortnite says:

    VEERRYY INTERESTING

  66. Sonia Bart says:

    Woah no need to be so excited

  67. KATI3 ASHL33 says:

    She looks so happy about the topic "EARTHQUAKES"

  68. Bryaaan says:

    looking this up only because i just had one

  69. Victoria Greyh says:

    You can be an animal if you want to, but as for me, I am created in the image of our Lord!! So, teach children YOU are the animal, not them.

  70. Victoria Greyh says:

    You can be an animal if you want to, but as for me, I am created in the image of our Lord!! So, teach children YOU are the animal, not them.

  71. Asrat Mengesha says:

    Earth plate, mantle. ..core…..all are myths but entertain children. Why don't you predict earth quake so that before it caused damage. By studying thr plates strength? Just like volcano?,thanks.

  72. Richard Schwam says:

    Clifford asks: How do stars form?

  73. Josie Walker says:

    Why is the sky blue

  74. darkness lord says:

    ask a grown-up to help leave a comment…

  75. Hoda Saleh says:

    now it is time for fun watch witch alya zomba dance

  76. Hoda Saleh says:

    good video

  77. lumijet zhuta says:

    When she said crust my mind went for a crusty pizza 🍕😋

  78. Sharon Moore says:

    You are smart

  79. Sharon Moore says:

    Pizza have crust.

  80. Hafsa Bilal says:

    Amazing

  81. Antoni Ontiveros says:

    I would be one of the reasons &make earthquakes with the hostess

  82. kok fah chong says:

    Even the turn of the 21st century we still don't know what actually causes earthquakes? Please watch this video clip: kayakers found a rapid stream of bubbles in the ocean near the epicenter after a magnitude 7.8 earthquake rocked Kaikoura, New Zealand on 14th November 2016.Earthquake is not caused by loosening stressed out fault near the boundary of tectonic plates. As a matter of fact, accumulative trapped gases or steam underneath the bedrock uplifting the bedrock against its massive weight until the bedrock snapped and when this happened earthquake ensues. After trapped gases or steam has gone after the earthquake the rebalancing of bedrock takes place immediately that aftershocks ensue. Sometimes the aftershocks can be more severe than the earthquake itself depending the adjustment of the bedrock after trapped gases or steam has gone. If you are interested in real discoveries, I would recommend you to read my book, The Unification Theory – Volume One and you will be amazed with lots of new, interesting discoveries. In God I trust.

  83. Lilia Saenz says:

    Who here just had an earthquake and was scared and curios how an earthquake was created

  84. ii_ AmSophiaPlayz says:

    I'm actually scared…because I came to this video because just a couple minutes ago there was an earthquake were I live and July 4 2019, which was yesterday there was an earthquake!!! 2 in a row!!! I'm scared because there may be another tommrow or soon….but worse..

  85. reign MSP says:

    So when a earthquake happens, it means that earth is falling apart?

  86. Nathaniel's Phone says:

    Is she on cocaine?

  87. DanielaIsAWESOME YAS says:

    Today is July 5th and we had an earthquake today

  88. Nerdy Princess says:

    I'm here after the 6.4 and 7.1 earthquakes in Cali, who else?

  89. SaitamaFTW says:

    I got curious because if the earthquakes lately in SoCal

  90. kem KuLa says:

    Birds don’t feel it

  91. Mario Almaraz says:

    Being in a earthquake is not fun or cool🤦‍♂️

  92. Khalid Alhomoud says:

    I watched this after a small earthquake in the phillippines

  93. jacob almeda says:

    THE CAUSES OF EARTHQUAKE ARE IF THE SOIL ARE LACK OF OIL THE BLACKHOLE ON INSIDE OF THE PLANETRE SUFFERED OF MANY LARGE FRICTION AND CAUSES OF MANY BIG EXPLOTION WHY THE SURFACE OF THE PLANET ARE SHAKING

  94. jacob almeda says:

    CAUSES OF BIG CRACK OF THE LAND ARE THE LACK OF METAL IN THE SOIL,., SINK HOLE CAUSES ARE THE DYING OF LAVA INSIDE THE PLANET AND AFTER DIE OF LAVA THE IS CREATING A GIANT CAVE INSIDE THE PLANET AND IF THE SOIL WILL SOFT THE LAND ARE COLLAPSE,,,,,,, LAND SLIDE CAUSES ARE THE LACK OF GRAVITY TO THE SOIL BECAUSE THE LAVA INSIDE THE LAND ARE DEAD,,,, HEAVY RAIN AND FLOOD,, THE CAUSES OF THIS ARE THE RELEASING OF BIG SIZE AMOUNT OF GRAVITY CAME FROM THE BLACKHOLE INSIDE THE PLANET BECAUSE OF DRY OF OIL THE SOIL OR NO LAVA IN THE SURFACE OF THE BLACK HOLE,,, HAIL STORM THIS CASES ARE THE SAME OF HEAVY FLOOD AND RAIN,,,, THUNDER,, CAUSES ARE THE TOO MUCH SPEED OF GRAVITY INSIDE THE CLOUD, CAUSES OF FRICTION WHY CREATING A THUNDER AND EXPLOTION,,,,,,TORNADO CAUSES ARE THE GIANT AMOUNT OF HOT GRAVITY CAME FROM THE SKIN OF BLACK HOLE, THIS SKIN OF BLACK HOLE ARE SPINNING VERY FAST ,,,,,,,,,ALSO THE TYPHOON OR STORM THE SAME CASES OF THE CAUSES OF TORNADO,,,,, CANCER, CAUSES ARE ALSO CAME FROM RELEASING OF MANY AMOUNT OF GRAVITY CAME FROM THE SKIN OF BLACK HOLE,,,,DYING OF FISH AND ANIMAL OR BIRD, THE CAUSES ARE THE RELESING OF TOO MUCH CAME FROM THE BLACK HOLE,,,,,,,,, ALL EXPLANATION AND TEACHING OF ALL SCIENTIST ARE WRONG AND INVENTED ONLY OR FAKE,,,,,

  95. kok fah chong says:

    Watch this video clip: kayakers found a rapid stream of bubbles in the ocean near the epicenter after a magnitude 7.8 earthquake rocked Kaikoura, New Zealand on 14  November 2016.Earthquake is caused by continuous build-up of steam or gases underneath the bedrock  until it snapped. When this happened, the earthquake ensued. After the trapped steam or gases have escaped, the fragmented bedrocks rebalanced themselves and this caused aftershocks. If you are interested in real discoveries,  I would recommend you to read my book,, The Unification Theory – Volume One and you will be amazed with lots of new, interesting discoveries. In God I trust.

  96. Sumana Samajder says:

    Why does oil float on water

  97. Yianni Catopodis says:

    This is obviously for school

  98. Gopal Chatterjee says:

    Ma'am can u plz explain what is Anthropogenic factors or isostatic origin

  99. Nataliya Markova says:

    My teacher said she was talking a thousand kilometres lol

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