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An earthquake is the sudden trembling of the Earth's surface. An Earthquake sends shock waves racing through the earth's crust. Earthquakes are generated on tectonic plates, which make up the Earth's crust. Earthquakes are usually caused by movements along faults as a result of compression in the Earth's crust. The magnitude of earthquakes are recognized by measuring the vibration/amplitude of the seismic waves and the distance of the earthquake from a seismometer. People who study Seismic waves are called Seismologists. Seismic waves are measured through special instruments called seismometers. They are then put into a formula which convert them into a magnitude. A Magnitude is the measure of the energy released from an earthquake. A Magnitude 8.6 earthquake releases energy equivalent to 10 000 atomic bombs.
Seismic waves are waves of energy that travel through the earth's layers and cause earthquakes, volcanoes and etc.
There are three types of Seismic waves, they include:
This Website Will Cover The Following Aspects of Earthquakes
Seismic waves are waves of energy that travel through the earth's layers and cause earthquakes, volcanoes and etc.
There are three types of Seismic waves, they include:
- P-Waves - Are the fastest waves. They travel at ~8km/Second and deform rocks by pushing or squashing the rock particles.
- S-Waves - Travel at ~4.5km/Second and deform rocks by vibratin them up, down and sideways.
- Surface Waves - Travel at ~1.5km/Second and deform rocks by rolling the rock particles over and over.
This Website Will Cover The Following Aspects of Earthquakes
- How Earthquakes Happen
- Impact of Earthquakes
- Primary and Secondary Hazards
- Responses from Groups or Organizations
- Solutions and Ideas
- Checklist