A Seismic Event

I came home yesterday from doing some work and Colby asks, "Did you feel the earthquake?"  

Excuse me...The Earthquake?  I must have missed that. 

Supposedly the whole apartment rattled, but I didn't believe him until I saw this in the news this morning:

"Iceland’s south western Reykjanes Peninsula has been experiencing a huge amount of seismic activity in recent days. 438 earthquakes have occurred in the region in the last 48 hours alone."

438??

That's wierd, because I haven't even felt one.