June 28, 2004 Troy Grove, Illinois Earthquake

General Information

Source	Date	Time (UT)	Latitude	Longitude	Depth (km)	Magnitude
PEPP	6/28/2004	6:10:52.648	41.3814	88.9360	5.0	4.5
USGS	6/28/2004	6:10:51	41.435	88.937	5.0	4.5
IRIS	6/28/2004	6:10:51	41.44	88.95	5.0	4.5

• USGS Event Page
• Focal Mechanism Determination (Saint Louis University)

Seismograms

• IU PEPP Network Recording
• IU PEPP Network Recording   (Arranged in order of increasing distance)
• IU PEPP Network Recording   (Time aligned along p-wave arrival, Phase arrivals labeled)
• PPBLO 3-Component Record   (Indiana University, Bloomington, IN)
• PURD 3-Component Record   (Purdue University, West Layfayette, IN)
• ISGS 3-Component Record   (Illinois Geological Survey, Champaign, IL)
• UWM 3-Component Record   (University of Wisconsin, Milwaukee, WI)
• PPMSH Record   (Maine South HS, Park Ridge, IL)
• Seismic Records for this Event   (USGS)
• Download Data for this Event   (IRIS - WILBER II)

Earthquake Maps

• Map of Epicenter Based on IU PEPP Stations Data
• Epicenter Location Map   (USGS)
• Epicenter Location Map showing distance to nearby cities   (ANSS)
• Historical Seismic Activity Map   (USGS)
• Generalized Seismic Hazard Map of the region   (USGS)
• Regional Shakemap from the USGS   (Map in progress, refresh often to see updates)

News Articles

• Earthquake Rattles the Midwest   from KCRG, Cedar Rapids, Iowa (Jun 28)
• 4.5 earthquake hits Midwest, 6.7, Alaska   from WashingtonTimes.com (Jun 28)
• Brief Earthquake Strikes Midwest   from Pekin Times, IL (Jun 28)

Pictures

• Posted as they are available

Previous Quakes in this Region

• Earthquake Information for Illinois   (USGS)
• Earthquake Information from the Illinois State Geological Survey   (ISGS)

Back to Main Earthquake Page

 

[SiteMap] | [About PEPP] | [News] | [Earthquakes] | [Curriculum] | [Indiana PEPP]
| [Software] | [Manuals] | [Instruments] | [Links] | [Contact Us!]