New Madrid Quake 4.0

Earthquake Details

• This event has been reviewed by a seismologist.

Magnitude	4.0
Date-Time	Tuesday, February 21, 2012 at 09:58:43 UTC Tuesday, February 21, 2012 at 03:58:43 AM at epicenter Time of Earthquake in other Time Zones
Location	36.850°N, 89.409°W
Depth	5 km (3.1 miles)
Region	SOUTHEASTERN MISSOURI
Distances	16 km (9 miles) ESE of Sikeston, Missouri 27 km (16 miles) SW of Cairo, Illinois 197 km (122 miles) NNE of Memphis, Tennessee 310 km (192 miles) SE of JEFFERSON CITY, Missouri
Location Uncertainty	horizontal +/- 8.7 km (5.4 miles); depth +/- 3 km (1.9 miles)
Parameters	NST=155, Nph=173, Dmin=54.5 km, Rmss=1.29 sec, Gp= 18°, M-type=body wave magnitude (Mb), Version=7
Source	Magnitude: USGS NEIC (WDCS-D) Location: USGS NEIC (WDCS-D)
Event ID	usb000834r