What year did Illinois have an earthquake?
Study Area
| Publication type | Article |
|---|---|
| Title | The April 18, 2008 Illinois earthquake: an ANSS monitoring success |
| Series title | Seismological Research Letters |
| DOI | 10.1785/gssrl.79.6.830 |
| Volume | 79 |
How old is the oldest earthquake?
The earliest earthquake for which we have descriptive information occurred in China in 1177 B.C. The Chinese earthquake catalog describes several dozen large earthquakes in China during the next few thousand years.
How old are earthquakes?
The earliest recorded evidence of an earthquake has been traced back to 1831 BC in the Shandong province of China, but there is a fairly complete record starting in 780 BC during the Zhou Dynasty in China.
When was the last historic earthquake in Illinois?
Earthquakes were reported in Illinois in 2012 (McHenry County), 2010 (Kane County) and 2008 (Wabash County). In fact, an earthquake in any of our neighboring states could be felt by residents in Illinois. This underscores the importance of preparedness.
How many earthquakes has Illinois had?
Illinois’ history is dotted with decently sized quakes. Bookended by two seismic zones on its eastern and southern border, the Wabash Valley Seismic Zone and the New Madrid Seismic Zone, the state has recorded 406 earthquakes magnitude 2.0 or higher since 1795, according to the mitigation plan.
How many earthquakes does Illinois have a 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.
Were there earthquakes in the 1800s?
Three of the earthquakes are on the list of America’s top earthquakes: the first one on December 16, 1811, a magnitude of 8.1 on the Richter scale; the second on January 23, 1812, at 7.8; and the third on February 7, 1812, at as much as 8.8 magnitude.
How many earthquakes have been in Illinois?
AN EARTHQUAKE EVERY YEAR During the 200 years since that event there have been about 200 other earthquakes in Illinois. Only nine of these quakes were strong enough to cause even minor damage.
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.
How often do earthquakes occur in Illinois?
about once every year
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.
How likely is an earthquake in Illinois?
There is up to a 40 percent chance for a major earthquake in Illinois according to FEMA.
How common are earthquakes 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. Most recently, a magnitude 5.0 earthquake shook southeastern Illinois in June 1987, causing minor damage in the Lawrenceville and Olney areas.
What is the biggest earthquake in Illinois?
magnitude 5.4
The largest Illinois quake ever recorded occurred on November 9, 1968, and measured magnitude 5.4 on the Richter scale. The last damaging earthquake in Illinois occurred on June 10, 1987, near Olney in southeast Illinois.
Has the Midwest ever had an earthquake?
Most people think that earthquakes occur only in places like California, Alaska, and Japan. This couldn’t be farther from the truth. Several major and numerous minor earthquakes have occurred in the midwestern and eastern United States, as well as eastern Canada. Over 900,000 earthquakes occur worldwide each year.
What fault line runs through Illinois?
The New Madrid Seismic Zone
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.