There seems to be some concern about really BIG earthquakes. Let's see, last time we had one it opened the Rift through which runneth the Rio. That was a few years ago...........
I spect this has something to do with California escapees, mostly the Hollywood crowd, who, leaving it all behind them and taking it all with them, most particularly imported The Fear Of Tara Jello.
I've been through a quake or two -- Northridge leaps to mind. One of the things that is most noticeable about quakes in recent memory in the US is that most of the casualties are Heart-attacks "MY GOD ITS AN EARTH QUAKE! I'M GONNA DIE!!!!". This is a self-fullfilling prophecy. The thing is if you keep your head, and don't hang heavy stuff on the walls over your head, then it is simply a matter of riding it out. You, can, of course, be in the wrong place at the wrong time, but you have a better chance of being there for a normal car "accident" (most of which are not accidents, they are just plain stupidity).
But, there is our Friend To The West. The "thinking" (for lack of a better word) is that if Our Friend To The West wakes up its gonna be one big earthquake.
Reality Check: Folks, if Our Friend To The West wakes up, the quake won't matter because we are sitting on the lava flow.
People do stupid things for stupid reasons -- like flattening historic landmarks for fear of an earthquake.