Fault Lines in the US: This Map Shows the Major Earthquake Hazard Areas Within the United States

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This map shows the major fault lines in the US!

And there are many more than what you would expect!

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Map of active US fault lines in the USA by USGS

This map courtesy of the U.S. Geological Survey (USGS) shows the major earthquake hazard areas within the United States based on fault lines. The fact is most states are at risk of major earthquakes, with 39 of the 50 states – including New York and Tennessee – in moderate to high risk areas for seismic activity.

Some particularly dangerous faults in the US

The New Madrid fault in the central United States is particularly dangerous. It is the most active seismic area east of the Rockies in the United States and runs from St. Louis to Memphis. The New Madrid fault line is best known for some of the most violent earthquakes to ever hit the United States: a series of four in 1811 and 1812. The quakes were estimated at magnitude 7.5 to 8.0, so strong the Mississippi River reportedly flowed backward. Damage occurred as far away as Washington, D.C., and Charleston, S.C. There have been major earthquakes in the area about every 500 years in the past 1,500 years. The earthquakes happened as a part of a sequence of events, not just one main shock. Seismologists say a similar catastrophe can happen thoughout the United States.

The Ramapo Fault, a New York Metro-area fault line, runs 70 miles through New Jersey, New York and Pennsylvania. The fault has been quiet for about 200 years and it is sure that at some point an earthquake is going to occur. However, since the rules of the game are not well understood in this area, it is hard to forecast the hazard.

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24 Comments

  1. EARTHQUAKES IN DIVERS PLACES THE BIBLE SAYS USGS!. NATION AGAINST NATION THE BIBLE SAYS. READ ODB.ORG AND THE OLDEST BOOK IN THE WORLD ABOUT THE BEGINNING AND END OF THE WORLD!. REVELATION 16 THE BUILDINGS FIRST FLEES AWAY THEN THE ISLANDS AND MOUNTAINS. I’M TRYING TO GET CALIFORNIA READY FOR A DISASTER AND SAVE LIFES WITH BIBLE AND PRAYER. THE WHOLE STATE A PILE OF RUBBLE. SWARMS OF EATHQUAKES!. SOUTHERN CALIFORNIA EARTHQUAKES DATA CENTER AT CALTECH. DISASTER EMERGENCY INTERNET AND PHONE SERVICE. ODB.ORG GOD BLESS.

  2. We are so sad that Lucy from USGS always lies and deceptions. We should fire her. We are sick of tired .
    the quakes happened in 7000 after 6.4 and 7.1 this never happened in the world. We will get 7.5 to 8,4
    is coming. China lake was Navy and they owned the china lake for tests. Somethings bad happened in a test?
    http://scedc.caltech.edu/recent/ and also why all fault lines in California missing? dutchinse is better he predicted quakes much logical? We Americans are not stupid to accept Lucy lies?

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