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Archive for April 18, 2008

Second IL Earthquake – 4.5 Magnitude

April 18, 2008 Eddie Leave a comment

Earthquake Details

Magnitude 4.5
Date-Time
  • Friday, April 18, 2008 at 15:14:16 UTC
  • Friday, April 18, 2008 at 10:14:16 AM at epicenter
Location 38.539°N, 87.865°W
Depth 10 km (6.2 miles) set by location program
Region ILLINOIS
Distances
  • 13 km (8 miles) E (81°) from West Salem, IL
  • 14 km (8 miles) W (275°) from Allendale, IL
  • 15 km (10 miles) NE (48°) from Bone Gap, IL
  • 34 km (21 miles) WSW (243°) from Vincennes, IN
  • 68 km (42 miles) NNW (336°) from Evansville, IN
  • 207 km (129 miles) E (92°) from St. Louis, MO
Location Uncertainty horizontal +/- 2.7 km (1.7 miles); depth fixed by location program
Parameters NST=152, Nph=152, Dmin=30 km, Rmss=1.65 sec, Gp= 22°,
M-type=body magnitude (Mb), Version=6
Source
Event ID us2008qzbx
Categories: General Weather

IL Earthquake Magnitude Revised to 5.2

April 18, 2008 Eddie 1 comment

Earthquake Details

Magnitude 5.2
Date-Time
Location 38.450°N, 87.890°W
Depth 11.6 km (7.2 miles) set by location program
Region ILLINOIS
Distances
  • 7 km (5 miles) NNE (13°) from Bellmont, IL
  • 9 km (6 miles) E (88°) from Bone Gap, IL
  • 11 km (7 miles) N (350°) from Keensburg, IL
  • 60 km (38 miles) NNW (331°) from Evansville, IN
  • 206 km (128 miles) E (95°) from St. Louis, MO
Location Uncertainty Error estimate not available
Parameters NST=111, Nph=111, Dmin=36.4 km, Rmss=0 sec, Gp= 61°,
M-type=moment magnitude (Mw), Version=A
Source
  • Center for Earthquake Research and Information, Memphis, Tennessee, USA
Event ID us2008qza6
Categories: General Weather

Earthquake Felt in West TN

April 18, 2008 Eddie 13 comments

Earthquake Details

Magnitude 5.4 (Preliminary magnitude — subject to revision)
Date-Time
  • Friday, April 18, 2008 at 09:36:57 UTC
  • Friday, April 18, 2008 at 04:36:57 AM at epicenter
Location 38.501°N, 87.898°W
Depth 10 km (6.2 miles) set by location program
Region ILLINOIS
Distances
  • 10 km (6 miles) ESE (103°) from West Salem, IL
  • 10 km (6 miles) NE (55°) from Bone Gap, IL
  • 13 km (8 miles) N (4°) from Bellmont, IL
  • 39 km (24 miles) WSW (239°) from Vincennes, IN
  • 66 km (41 miles) NNW (333°) from Evansville, IN
  • 204 km (127 miles) E (93°) from St. Louis, MO
Location Uncertainty Error estimate not available
Parameters NST=021, Nph=021, Dmin=263.2 km, Rmss=1.07 sec, Gp=119°,
M-type=moment magnitude (Mw), Version=1
Source
Event ID at00851141
Categories: General Weather