The New Madrid Seismic Zone (NMSZ) is a 150-mile long fault zone spanning four states in the Midwestern United States (see Figure 1). The NMSZ lies within the central Mississippi Valley, extending from northeast Arkansas, through southeast Missouri, western Tennessee, and western Kentucky to southern Illinois.
Is Illinois on a major fault line?
Despite not being located near a large fault line such as those in California, Illinois is at risk.
Are there any fault lines in Chicago?
This region consists of two main areas, the New Madrid Seismic Zone and the Wabash Valley Seismic Zone. These zones – or areas that are prone to earthquakes from one fault ‐ include many geologic faults that are capable of producing earthquakes.
Is Illinois prone to earthquakes?
Illinois is among 16 states with the highest risk for earthquakes, including: Alaska, Hawaii, California, Oregon, Washington, Nevada, Utah, Idaho, Montana, Wyoming, Missouri, Arkansas, Tennessee, Kentucky and South Carolina.
Is Chicago in an earthquake zone?
Minor earthquakes occur every few years in the Chicago area, most of them barely are noticeable and cause little, if any, damage. A 2.9 magnitude quake, centered in the northwest suburbs near Lake-in-the Hills was felt in March of 2015 and a 3.8 inch quake was centered near Sycamore on February 2, 2010.
Are there tectonic plates in Illinois?
PLATE TECTONICS & ILLINOIS
Illinois is located thousands of miles from the nearest plate boundary (in California) yet plate tectonics still affects the state.
What is the biggest earthquake in Illinois?
The 1968 Illinois earthquake (a New Madrid event) was the largest recorded earthquake in the U.S. Midwestern state of Illinois. Striking at 11:02 am on November 9, it measured 5.4 on the Richter scale.
How often do earthquakes occur in Illinois?
Earthquakes occur in Illinois about once every year. But damaging quakes are much less frequent. Minor damage from Illinois earthquakes is reported about once every 20 years.
Is there a fault line in northern Illinois?
The Sandwich Fault Zone is a fault zone that runs northwest from Oswego to Ogle County, transecting Lee County in Northern Illinois. The fault has generally not been active, although there was a minor earthquake in 2002, and another, slightly larger one, in 2010.
Where is the biggest fault line in the world?
The Ring of Fire is the largest and most active fault line in the world, stretching from New Zealand, all around the east coast of Asia, over to Canada and the USA and all the way down to the southern tip of South America and causes more than 90 percent of the world’s earthquakes.
Is Illinois overdue for an earthquake?
The survey also noted that the region “appears to be about 30 years overdue for a magnitude 6.3 quake, while the probability of a repeat of the 1811-1812 (magnitude 7.5-8.0) earthquake is 7-10 percent.” A magnitude 7.6 earthquake would cause major damage throughout the region.
What would happen if the New Madrid fault line went off?
Nearly 200 schools and over 100 fire stations would be damaged; 37 hospitals and 67 police stations would be inoperable the day after the earthquake in the state of Missouri. Thousands of bridges would collapse and railways would be destroyed, paralyzing travel across southeast Missouri.
Which 2 states have the least amount of earthquakes?
Florida and North Dakota are the states with the fewest earthquakes. Antarctica has the least earthquakes of any continent, but small earthquakes can occur anywhere in the World.
How many earthquakes happen in Illinois every year?
Since then, Illinois has had an average of 12 earthquakes per year; however, since 1980 (which had a meager number of earthquakes), the standard has been around 32 earthquakes per year.
What natural disasters occur in Illinois?
Illinois’ most common natural disasters include severe storms, floods, tornadoes, winter storms, and power outages. Other less significant disasters include wildfires, earthquakes, landslides, and seiches.
Was there a small earthquake in Illinois today?
There were no significant confirmed earthquakes in or near Chicago in the past 24 hours.
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