Earthquake Location & Size. 3 Major Zones 1.Ring of Fire: Around the Pacific plate Type of Boundary: -Transform fault and convergent boundary.

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Presentation transcript:

Earthquake Location & Size

3 Major Zones 1.Ring of Fire: Around the Pacific plate Type of Boundary: -Transform fault and convergent boundary

2.Eurasian- Melanesian: Collision between Asia and India. Type of boundary -Convergent

3.Mid-Atlantic Ridge: Rocks are pushed as a result of sea floor spreading. Type of boundary -Divergent

Earthquake Size Seismic waves are recorded by a Seismograph.

Charles Richter Measured the energy given off by an earthquake on his: Richter scale Energy given off by an Earthquake is its Magnitude Richter Scale Microquake: Under 2.5 Minor quake: 2.5 – 6 Moderate quake: 6 – 7 Major quake: 7 +

For each whole number that an earthquake reading goes up, 32x more energy is released. Ex. Difference between a 3 and 6. 23,768 times more energy released.

Modified Mercalli Measures the intensity of an earthquake. It is more subjective and is based on the amount of damage at a location. You can have different readings for the same earthquake in different cities. Scale goes from I to XII

Key to remember: Key to remember: An earthquake can only have one Magnitude but can have many intensities.

San Andreas fault in Central California. San Andreas fault in Central California.

San Francisco Earthquake April 18 th, 1906

Interstate 5 Interstate 5 Northridge Earthquake