Magnitude 4.3 - ILLINOIS
2010 February 10 09:59:34 UTC
Earthquake Details
Magnitude 4.3
Date-Time Wednesday, February 10, 2010 at 09:59:34 UTC
Wednesday, February 10, 2010 at 03:59:34 AM at epicenter
Time of Earthquake in other Time Zones
Location 41.978°N, 88.597°W
Depth 5 km (3.1 miles) set by location program
Region ILLINOIS
Distances 6 km (4 miles) WNW (292°) from Virgil, IL
8 km (5 miles) E (94°) from Sycamore, IL
8 km (5 miles) N (1°) from Maple Park, IL
14 km (8 miles) ENE (67°) from DeKalb, IL
35 km (22 miles) NW (315°) from Aurora, IL
77 km (48 miles) WNW (282°) from Chicago, IL
Location Uncertainty horizontal +/- 12.8 km (8.0 miles); depth fixed by location program
Parameters NST= 11, Nph= 11, Dmin=171.4 km, Rmss=0.86 sec, Gp=151°,
M-type=”Nuttli” surface wave magnitude (mbLg), Version=6
Source USGS NEIC (WDCS-D)
Event ID us2010snay
http://earthquake.usgs.gov/earthquakes/recenteqsus/Quakes/us2010snay.php
http://www.chicagobreakingnews.com/2010/02/quake-like-tremors-reported-in-western-suburbs.html
“4.3-magnitude earthquake hits near Sycamore”
February 10, 2010 5:24 AM | No Comments | UPDATED STORY
A mild earthquake shook northern Illinois this morning.
SNIPPET: “The U.S. Geological Survey reported a 4.3-magnitude quake at 3:59:43 a.m. centered about 5.5 miles east of Sycamore and 3.1 miles underground. The epicenter is about 45 miles west of Chicago.”
SNIPPET: “The nature of the fault activity that caused the quake was unclear, said Amy Vaughan, a geophysicist with the geological survey in Golden, Colo. Past quakes that have affected southern Illinois have been in the Wabash Valley or New Madrid seismic zones.
The fault systems in northern Illinois are not as well understood as those in other regions where earthquakes are more common, and more investigation will be needed to determine the cause of this morning’s temblor, Vaughan said.”