5 Destructive Effects of Earthquakes
Destructive Effects of Earthquakes – Powerful earthquakes may change the course of rivers which may render an area infertile. After earthquakes, fire may also break out.
Geography
Constructive Effects of Earthquakes
Constructive Effects of Earthquakes – Earthquakes help the Earth in releasing its energy. As a result of earthquakes, many landforms are built.
What are the Effects of Earthquakes?
Earthquakes have constructive and destructive effects. Earthquakes help the Earth in releasing its energy. Powerful earthquakes may change the course of rivers which may render an area infertile.
Difference between Seismograph and Richter scale
Difference between Seismograph and Richter scale – A seismograph is an instrument that measures and records the details of an earthquake such
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What Instrument Measures Earthquakes?
A seismograph is an instrument that measures Earthquakes and records the details of an earthquake such as its duration, force, and direction.
What is a Seismograph?
A seismograph is an instrument which measures and records the details of an earthquake such as its duration, force and direction. The seismograph has a pen attached to it.
Anatomy of an Earthquake
Anatomy of an Earthquake – The place in the Earth’s crust where the movement first starts is called the focus. The place on the surface above the focus is called epicentre.
What Causes Earthquakes?
An earthquake is a tremor below the surface of the Earth which causes shaking of the Earth’s crust. The Main Causes of Earthquakes are
Metamorphic Rocks
When existing rocks are subjected to high temperature and pressure, metamorphic rocks are formed. Metamorphism is a process by which these metamorphic rocks are formed.
What is Regional metamorphism?
When metamorphism is caused by large-scale changes such as mountain building, the igneous and sedimentary rocks may get buried to form new rocks. This is known as regional metamorphism. When only a small area is affected, it is called local or contact metamorphism. Example: Sandstone changes into quartzite.