Another one for the likes of Fulford or James Corbett to analyze as to whether there is any reason to believe that these Okinawan (Nago) quakes are natural or a 'White Hat' response to what the U.S. military is planning to do in the area. You may recall that the Hokkaido Electric Power chose to run its Tomari nuclear plant on emergency power after a strong tremor struck the area earlier this month, and that Fulford thought was suspicious in origin due, in part, to its shallow depth.

M 5.6 - RYUKYU ISLANDS, JAPAN - 2018-09-15 16:24:34 UTC
CSEM / EMSC
https://www.emsc-csem.org/Earthquake/earthquake.php?id=713033#summary

Magnitude Mw 5.6
Region RYUKYU ISLANDS, JAPAN
Date time 2018-09-15 16:24:34.6 UTC
Location 26.61 N ; 129.56 E
Depth 2 km

Distances 780 km S of Fukuoka-shi, Japan / pop: 1,393,000 / local time: 01:24:34.6 2018-09-16
193 km E of Naha-shi, Japan / pop: 301,000 / local time: 01:24:34.6 2018-09-16
158 km E of Nago, Japan / pop: 59,600 / local time: 01:24:34.6 2018-09-16

Note the shallow depth of the various Ryukyu Island quakes listed on CSEM / EMSC.