Publisher's Synopsis
Excerpt from The Earthquake of September 2, 1999, in Northern Illinois: Big Lessons From a Small Earthquake
When a small earthquake rattled across northern Illinois just before lunch on Thursday September 2, 1999, the popular response was first surprise, then disbelief, followed by curiosity. Because earthquakes in this part of the world are rare events, the widely felt, single, sharp jolt from this earthquake generated considerable local interest. Given the novelty of the event and the images of devastation wrought by a major earthquake that occurred in Turkey less than a month before on August 17th, this curiosity is quite understandable. This earthquake is scientifically significant not because of its size, having a magnitude of only mb but because of its location and the subtle variations in the effects of the earthquake waves as they passed through the region. Lasting only a few short seconds, this minor earthquake left a record that can provide some important insights into present-day tectonic processes and future seismic risk in northern Illinois.
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