A quarry blast shook the southwest suburbs and reportedly could be felt across the Chicago area, including within the city itself, just after 12:30 p.m. Monday.
The USGS National Earthquake Information Center initially recorded a 3.7-magnitude eathquake at 12:35 p.m. in Indian Head Park.
Did you feel the blast? Let us know where you are and what you felt.
Here are additional details as we get them, including your reactions:
[View the story “BREAKING: Earthquake reportedly shakes southwest suburbs” on Storify]Here are several maps of the area:
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For more information about the “shaking levels” shown in the map above, read “Map: Monday’s quarry blast.”
That second map was created by the USGS.
The earthquake information center also is looking for your reactions. If you felt the blast earlier today, you can fill out a form for the USGS here.