No new activity but I did get this revision which supports data in Dragon Rider's above link.
Based on additional information provided by both the USGS and CERI
the following is an update of the Blytheville earthquake. Most
significantly we have revised to magnitude to 4.0
A minor earthquake occurred Tue Apr 29, 2003 at about 23:56:21 CDT
(Apr 30, 2003 04:56:21 GMT). The event was 1.42 km ( 0.88 mi) north
of Blytheville, AR (Mississippi). The magnitude was 4.0.
Origin Time: 2003/04/30 04:56:21.56
Magnitude: 4.0
Hypocenter: 35.94 deg latitude -89.92 deg longitude
Depth: 23.82 km
Number Picks: 34
Closest Station: 9 km
RMS: 0.07 sec
Gap: 75 deg
Quality: A
Error Ellipsoid, axis #1: azm> 146 dip> 1 len> 0.62 km
axis #1: azm> 56 dip> 5 len> 0.34 km
This is a preliminary location and magnitude determined from
data provided by the Central and Southeast U.S. Cooperative
Seismic Network and by the U.S. Geological Survey. Magnitude
and location may change slightly as more data become available.
Additional information on the CUSSN is available at:
folkworm.ceri.memphis.edu...
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