Unalaska, AK – It probably didn't wake anybody up in Unalaska, but a 5.5 magnitude earthquake hit in the Fox Islands region at 3:30 this morning. No injuries or damages have been reported, says Ian Dickson at the Alaska Earthquake Information Center. He also says that there haven't even been any felt reports filed.

The earthquake hit just over 140 miles Southwest of Unalaska, and the epicenter was about 7 miles below the sea bed. The quake was actually an aftershock caused by the 6.6 magnitude earthquake that hit the area on July 18. There has been a substantial increase in seismic activity since that quake, including an unusually large number of aftershocks with magnitudes of 4 or higher.

According to the Alaska Earthquake Information Center, aftershocks are "expected to continue for at least another couple of weeks."