>>Is a 4.0 really considered an earthquake by California standards?<<
Not really. Sort of a Hmmmm...
We spent our whole lives being warned about pre-quakes although I never experienced one and I was 1.5 miles from the Northridge quake epicenter and about 2 miles from the Whittier Narrows quake center.
Now that was an earthquake. I remember when that hit.
Now that was an earthquake. I remember when that hit.