posted on Apr, 18 2011 @ 04:35 PM
reply to post by Nephi1337
I was located 15 miles from the epicenter of the Northridge, CA earthquake in I think it was 1992.
I was in my office, on a ground floor with a cement slab floor doing paperwork at the time it hit.
I vividly recall feeling 2 percussions beneath my feet, like someone had taken a hammer and hit the floor directly below my feet. Then, within a few
moments, the earth began shaking.
I remember thinking at that moment, "WHAT was that"??? Then the EQ began in earnest.
So this may be a common signature of EQs...The 2 sharp initial percussions, followed by the main event.
Just my personal experience...