Illinois Quake Felt in St. Louis Highlights Midwest Seismic Risk
• A magnitude 3.5 earthquake in southern Illinois was felt in St. Louis and surrounding areas.
• The quake highlights the seismic risks in the Midwest due to the New Madrid seismic zone.
• The New Madrid seismic zone, though less active than the West Coast, can produce far-reaching tremors.
Earthquake in Illinois felt in Missouri
A magnitude 3.5 earthquake struck southern Illinois early Tuesday, sending tremors through parts of Missouri, including St. Louis. The shallow quake, located just east of Ohlman, Illinois, generated over 1,000 reports to the USGS from individuals who felt the shaking. Communities throughout central and southern Illinois also reported feeling the tremor. This event underscores the seismic risks present in the Midwest, particularly due to the region's proximity to the New Madrid seismic zone.
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