posted on Mar, 17 2011 @ 04:11 PM
The 'earthquake rainbow' seen before the Schezuan earthquake is called a circumhorizon arc
. It is a perfectly natural, normal and somewhat
common occurrence at the right latitudes.
I've seen and photographed 14 separate instances of CHAs in our area in the last three years. Never
a jiggle, never a blip of an earthquake in
our northern California area. They have NOTHING to do with earthquakes.
Just because something happens around the same time as something else is faulty logic. Look up 'post hoc ergo propter hoc' for a good definition of
This website does a great job of explaining the prismatic optics necessary for a sighting:
Here's one of the better sightings I've made, the halo above it is a common 22° halo.
My local CHA
Here's a similar arc phenomenon that gets mistaken for earthquake clouds, a circumzenithal arc, always higher in the sky and the colors are
Once you know what type of clouds tend to form these, at what time of day and where in the sky they form---I guarantee you will start seeing them
edit on 3/17/2011 by czygyny because: forgot important fact