Originally posted by kdog1982
Ok,I'll bite.
It's the current day,night added recently.
Night time is shaded dark.
And it changes as time advances.
I probably didn't explain it correctly, and the title of the thread isn't helping.
I know what the different shades represent, my observation, based on a very small snapshot in time, was that the quake activity at the time of my OP
was concentrated along the edges of the dark areas both in the east and in the west. The western edge was along the California coast and up into
Alaska where there was a solid line of activity and the eastern edge was over Greece, Turkey and Italy which also has a lot of recent activity.
This new feature on the map hilighted these areas and it seemed odd at the time but as of now the shadow has moved west and it no longer applies.
Just wondering if anyone has data on quake activity by time of day and if so, is it increasing along with the recent solar activity.