Earthquake Science Project By: Olivia Holmes and Emma Cyr.
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Transcript of Earthquake Science Project By: Olivia Holmes and Emma Cyr.
• California is on a transform boundary, so it has a lot of earthquakes.
• Florida doesn’t have earthquakes because they are not located in an earthquake zone.
• It was China’s earthquake.
• It was an 8 on the Richter scale.
• It was located in China and it took place in 2008.
• The Richter scale
Convergent plate boundary
• A line where two tectonic plates move toward each other into a collision.
• These plate boundaries create earthquakes and volcanoes.
Divergent plate boundary
• A line where two tectonic plates slide away from each other.
• They can cause mountain ridges under the ocean and sea-floor spreading.
Transform plate boundary
• A line where two tectonic plates slide sideways past each other.
It creates a transform fault.
What are the two types of energy waves created by an earthquake,
and how do they differ? Which type of waves travel faster?
Primary and Secondary waves
• There are primary waves and secondary waves.
• Primary waves travel faster.
• Secondary waves are in the inner earth, and primary waves are not.
• A magnitude of a 7.2 earthquake produces 10 times more ground motion than a magnitude of a 6.2 earthquake.
• It releases about 32 times more energy than a 6.2 earthquake.
Seismology
• Reflection and refraction are the two applications in seismology.
• They can be used to make evacuation plans.
• They can also be used to locate underground hydrocarbons.
Haiti and Chili
• The places that had the most earthquakes happen is Haiti and Chili. In Chili, large aftershocks have been nearly continuous since last week.
• Scientists cannot predict the exact occurrence of an individual earthquake.
• However they can estimate the probability of a major future earthquake.
The use data collected from as many seismograph stations as possible to perform a calculation.
• They need at least three seismograph stations. The calculation is called triangulation.