The headline is so misleading. Nothing has been ‘confirmed’. The London Times has NOT confirmed it. All they have is speculation by a source in ‘Israeli Intelligence’ that maybe it happened. Maybe.
I hope it did. But I wish they would stop citing hearsay as ‘proof’. Thus far there is NO proof. It seems to me that something of such magnitude underground would have been detected seismically if it was that powerful.
Maybe some Freeper with knowledge of whether or not this should/could have been a registered seismic event could explain why or why not.
I posted one possible answer to your seismology question on the image analysis thread. I'll see if I can find it...
AH! Here 'tis:
http://www.freerepublic.com/focus/news/2983186/posts?page=89#89
Plus, I might add, it would probably be considerably lower in amplitude than the Richter 4+ quakes that are commonly posted on "earthquake" sites...
One would have to examine the actual seismic data from nearby seismometers to find such an event -- and, even then, it could be masked by small remnants of seismic activity somewhere else in the world.