OP. I wanted to add that I have been matching (not keeping track of) EQs to current asteroids and meteors. If we are to experience the impact of a large meteor, I believe the pre issues would include huge earthquakes. I see a large uptick in this the last year. You should start watching whenever you see a big quake (or moderate even) check to see if we have an NEO and almost always they coincide.

Two major EQs today and here is today's NEO:
[link to ssd.jpl.nasa.gov] VC26&orb=1

Not huge but close.