"Most of the 1.3 million people in the Ryukyu Islands live on the main island (Okinawa island) and rely on the U.S. military, the Japanese government and tourism for money. They are among the poorest people in Japan. Even so they live the longest and are regarded by many as the happiest. " Website: Wikipedia
http://factsanddetails.com/japan.php...5&subcatid=172
all these recent earthquakes seem to be in poor areas.
"Tanegashima (southeast of Kagoshima) is a low-lying agricultural island with 26,000 people. It is rarely visited by tourists. It is home of the Tanegahsima Island Space Center, where Japan launches its rockets and satellites. Website: Tanegashima Space Center JAXA"
"Yaeyama Islands (between the Miyako Islands and Taiwan) are famous for black pearls, star-shaped sand and the Iriomote wildcat."