M6.3 - Salta, northern Argentina

[Chacor]

This occurred about an hour ago. Northern Argentina, quite a distance away from the Chilean quake. Doesn't look like an aftershock.
http://earthquake.usgs.gov/earthquakes/ ... 10tfc3.php

[cycloneye]

[Cyclenall]

CNN seems to be reporting it as an aftershock from the main one. I don't know if the scope of the shaking affects how far aftershocks can happen from the main point.

[Chacor]

It's about 10 degrees latitude and 8 degrees longitude off the initial quake. I seriously wouldn't call that an aftershock.

[KWT]

Yeah its seperate IMO, because whilst its probably related to the same event that caused the Chile event but I'd guess thats a earthquake in its own right!

Amazing day for the Geologists though thats for sure, seems like one event has triggered another twice now!

[Macrocane]

I agree, it is not an aftershock but it could be a consequence as the Chile earthquake may have caused stress in the nearby plates and faults.

A boy died when a wall collapsed because of this quake: http://www.clarin.com/diario/2010/02/27/um/m-02149212.htm (Spanish)

Widespread damage is not reported only some weak structures collapsed.

[brunota2003]

Perhaps the jarring and rocking of the ground is causing these lines to overstress, and thus then break.

[Macrocane]

Now there are two deaths, a 57 year old man also died when the roof of his home collapsed:

http://www.clarin.com/diario/2010/02/27/um/m-02149212.htm (in Spanish)

[Stephanie]

I agree, it is not an aftershock but it could be a consequence as the Chile earthquake may have caused stress in the nearby plates and faults.

It's kind of a long the same fault line. That's what I initially thought as well.

A very interesting couple of months for geologists. They'll be studying this for years.