https://www.worldatlas.com/natural-disasters/what-causes-earthquakes.html
https://www.ready.gov/earthquakes
https://www.mtu.edu/geo/community/seismology/learn/seismology-study/#:~:text=Seismology%20is%20the%20study%20of,studies%20earthquakes%20and%20seismic%20waves.
https://www.mtu.edu/geo/community/seismology/learn/earthquake-measure/
What is an earthquake and what is going on when one occurs?
Earthquakes are when the ground beneath us suddenly breaks or shifts, and energy is released that makes the ground shake. Earthquakes occur when there's a sudden release of energy in Earth's crust, creating seismic waves. When energy is released by a fault at the focus, seismic waves travel outward from that point in all directions. This is what makes the ground shake, causing an earthquake.
This image shows plates shifting, causing an earthquake.
How do scientists know an earthquake is occurring?
Scientists have tools called Seismographs which catch seismic waves, even the small ones, and draw them on a piece of paper, like a wiggly line. It's like the Earth telling the seismograph, "Hey, something big just happened!"
By looking at the data from seismometers, scientists can find where the seismic waves started, which is the epicenter.
Seismograph
How do scientists know an earthquake is occurring?
Imagine that you have a special ruler called the Richter scale. This ruler is used to rate the magnitude of an earthquake, so how big the earthquake is. If the wiggly line drawn by the seismograph is really tall, that means the earthquake was super big. But if it's just a little wiggle, the earthquake was small. Scientists look at the wiggly line on the paper and use the "special ruler" to figure out how powerful the earthquake was. It's like they're reading a secret code to understand how strongly the Earth was shaking.
Seismographs and the Richter scale help earthquake scientists (seismologists) understand earthquakes, just like detectives solving a mystery. So, next time the ground shakes, remember that seismologists are on it, using their very cool tools to keep everyone safe!
How do scientists know an earthquake is occurring?
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https://www.worldatlas.com/natural-disasters/what-causes-earthquakes.html
https://www.ready.gov/earthquakes
https://www.mtu.edu/geo/community/seismology/learn/seismology-study/#:~:text=Seismology%20is%20the%20study%20of,studies%20earthquakes%20and%20seismic%20waves.
https://www.mtu.edu/geo/community/seismology/learn/earthquake-measure/
What is an earthquake and what is going on when one occurs?
Earthquakes are when the ground beneath us suddenly breaks or shifts, and energy is released that makes the ground shake. Earthquakes occur when there's a sudden release of energy in Earth's crust, creating seismic waves. When energy is released by a fault at the focus, seismic waves travel outward from that point in all directions. This is what makes the ground shake, causing an earthquake.
This image shows plates shifting, causing an earthquake.
How do scientists know an earthquake is occurring?
Scientists have tools called Seismographs which catch seismic waves, even the small ones, and draw them on a piece of paper, like a wiggly line. It's like the Earth telling the seismograph, "Hey, something big just happened!"
By looking at the data from seismometers, scientists can find where the seismic waves started, which is the epicenter.
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