# Tectonic plates=dangerous wheather

## Meet the Tectonics

Each tectonic plate is like a puzzle piece. They all can fit together. The tectonic plates are located beneath the oceans and continents, they are the things that are holding them all up. Where the plates meet is called a fault. They move 24 centimeters a year. There are two different types of tectonic plates, the oceanic plate (holding ocean water), and the continental plate (holding the continents).

## Earthquakes

Earthquakes are caused when tectonics plates meet, and start pushing against each other. This builds a lot of stress, which is not being released. When the plates finally start releasing the stress by continuing their path forward it causes lots of energy being released causing the earth to be shaken. Earthquakes are also very hard to predict. This is because the process happens so quickly, and can happen at any time. Earthquakes have a center that releases all the other shock waves. It is called an epicenter. The earthquakes are measured on a Richter scale from 1-10. Each number has a 10x difference. For an example 4 is 10x less the an earthquake measured a 5. A seismograph measures the the force of the earthquake on the Richter scale. Earthquakes measured a two and under cannot be felt by human, they are happening all. the the time because the tectonic plates are in motion non-stop. The largest earthquake ever measured was a 9.5. In conclusion earthquakes can be very dangerous and can happen at any time.

## Tsunamis and Their Relationship with Earthquakes

Tsunamis are caused by earthquakes under water. The heavier oceanic plate slips under the lighter continental plate because of the force pushing one another, eventually the plates would have to move some how. The water above gets caught off balance, but gravity pulls the water back down. This creates a lot of power even though the water seems calm. When at the shore lumps of land can cause the the racing water to rise, Forming a massive wave. A tsunami also can take different forms, most commonly a rapidly rising tide.

## Glossary

tectonic plate- A layer of the earths crust

oceanic- Having to do with the ocean

continental- Interacting with the continents

epicenter- The center of an earthquake

## Sources

weatherforkids.org

weatherwizkids.com

school.eb.com (Britannica School)