Tsunamis mess with GPS and radio.

The Richter 9.0 earthquake underwater near Honshu, Japan on March 11 2011 pulsed seawater sideways.   And it pulsed air pressure up.  As reported eloquently by spaceweather.com "When the earth trembles, even the edge of space moves."   It was more than a single burp.  As the water tsunami propagated and bumped into things underwater, the ocean's surface pulsed.  Ocean ripples we couldn't see from earth were  interfering with each other from a satellite's perspective.  "The waves scramble GPS signals and interfere with radio communications"

Picture:  Rippled ocean rings detected from space. (Reproduced from spacewather.com).















Video below:  A reminder of the horrific flood in some corners of Japan.
"Tohoku Earthquake and Tsunami, 2011"