At 10:58 AM eastern US time, a major earthquake struck Alaska, initially registering as a Magnitude 6.5.  It has since been re-assessed as a 6.1 with confirmation that it took place at a very shallow depth of only 9.9km. (UPDATE: The quake has been revised yet AGAIN, back up to 6.4)

Alaska is a enormous state.  To give you an idea of how big, my home state of New Jersey is about 8,700 Square Miles.  You can fit six New Jersey's in a state like Georgia which is about 59,000 square miles.   You can fit about four Georgia's in a Texas, which is about 268,000 square miles . . . and you can fit TWO+ TEXAS in Alaska which is 668,000 square miles.   That's huge!

There aren't many people up in Alaska either.  So while the US Geological Survey is receiving reports that the quake was "felt"  there's probably not a lot of damage to man-made anything.

Whether there is a lot of damage to natural things remains to be seen.  When an earthquake of this strength takes place, it has effects on things inside earth for thousands of miles.  And one of the things within that distance is . . . the Cascadia Subduction Zone off the coasts of Washington, Oregon and northern California. 

As such, it seems a reasonable conclusion that folks on the west coast should expect higher than normal earthquake activity in the coming week.