All

Well, that precipitous dip has coincided with FOUR big quakes, two of 6M, and at least two more dips in the blue and/or red lines to coincide with them, all in the Loyalty Island region.

04/01/03 16:23:1922.35S169.61E10.0 6.4SOUTHEAST OF LOYALTY ISLANDS
04/01/03 09:45:1922.35S169.38E10.0 5.5SOUTHEAST OF LOYALTY ISLANDS
04/01/03 08:21:4822.42S169.50E10.0 6.1SOUTHEAST OF LOYALTY ISLANDS
04/01/03 08:07:3422.41S169.68E10.0 5.7SOUTHEAST OF LOYALTY ISLANDS

I consider this electron thing at this point to be a useful indicator of big quakes, at least in Japan and the South Pacific.

Stay safe!
Donald