Earthquake facts about Earth explains why our planet has the shakes
Earthquake facts about the Earth explains what makes our planet shake, rattle and roll. Earthquakes can happen any where on our planet. There are earthquake zones where earthquakes happen much more frequently than they do in other places.
Earthquake hazard map USGS
More fascinating facts about the Earth. Every earthquake produces earthquake waves. Only large earthquake like the 1964 Alaska Earthquake produces Love waves and Rayleigh waves. The Richter magnitude scale, moment magnitude scale and the Mercalli scale are used to determine the magnitude and the intensity of an earthquake.
Faults are places where blocks of the Earth's crust move up, down or sideways. The fault is the area between the two blocks of land. Normal faults form when land is pulling apart. Reverse faults occur in places where two blocks of land are being compressed together. A strike slip fault forms when two blocks of land move horizontally past each other.
Our SE Earthquakes textbook is designed for students to work through the lessons on their own with minimal help from their teachers.
Notorious earthquakes in the past
The United States has been struck by many earthquakes in the past. The New Madrid earthquakes struck in the middle section of the country and rang bells in Boston. The San Francisco earthquake struck the town in 1906. Fires killed most of the people that swept the town after the earthquake.
People attending the World Series baseball game in San Francisco were there when an earthquake struck the town. The 1964 Alaskan earthquake was the second largest earthquake of the 20th Century. It struck on Good Friday when the schools were closed and most businesses.
1964 Alaska Earthquake The 1964 Alaska quake was the largest earthquake ever recorded in North America.
Richter Magnitude Scale The Richter magnitude scale was developed in 1935 to study California earthquakes.
Moment Magnitude Scale The moment magnitude scale measures the total energy released by great earthquakes.
Normal Fault Find out how and why normal faults form.
Earthquake Waves Find out which earthquake waves are produced only by large earthquakes.
Earthquake Facts Did you know that an earthquake can occur any place on Earth?
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