A 3.0 magnitude earthquake has struck the New Madrid Seismic Zone (NMSZ) located in Southern Missouri.
Any movement over a 1.0M-2.0M in this region should be made note of. Especially at a time where we are seeing excessive seismic movement elsewhere nearby.
It is troubling for us to see movement in this region, being that I live in St. Louis Missouri, just due North of the major NMSZ strike zone.
I am not surprised to see movement occur at this point.
Over the past 24-48 hours (up to 5pm CST February 28, 2015) we have seen multiple earthquakes strike Dallas Texas, Alabama, Oklahoma, and along the East coast (Virginia, New York, Pennsylvania, and North Carolina).
This indicates major pressure on the edge of the craton, being revealed by earthquakes all along the Southern , Eastern, and Western portions of the plate.
The New Madrid Seismic Zone is an area which had the greatest magnitude earthquakes in the continental United States History.
In the winter months of December 1811, into January – February 1812… a series of large 7.0 – 8.0 magnitude earthquakes.
The location shown in dark red (via this USGS chart) shows the area in question, with the % of risk for another large earthquake over the next 50 years (as of 2009).
The movement seen in the South United states FOLLOWS a “hidden” 6.0 magnitude earthquake which struck off the shores of Puerto Rico yesterday, February 27 2015.
Information on this event from the USGS:
Data Source NM1
- 2015-02-28 23:08:44 (UTC)
- 2015-02-28 17:08:44 (UTC-06:00) in your timezone
- Times in other timezones
- 5km (3mi) SSW of Lilbourn, Missouri
- 37km (23mi) S of Sikeston, Missouri
- 50km (31mi) NE of Kennett, Missouri
- 53km (33mi) WNW of Union City, Tennessee
- 259km (161mi) W of Nashville, Tennessee
|Magnitude / uncertainty||3.0 md± 0.4|
|Location / uncertainty||36.544°N 89.639°W± 0.2 km|
|Depth / uncertainty||14.6 km± 0.3|
|Origin Time||2015-02-28 23:08:44.300 UTC|
|Number of Stations||38|
|Number of Phases||32|
|Minimum Distance||10.47 km (0.09°)|
|Travel Time Residual||0.13 sec|
|FE Region||Missouri (486)|