Ground motion at COCO, Cocos Island in the Indian Ocean: Ground motion changed on June, 2013, since then, fluctuating lively.

REV gives a seismograph of a ground motion at each station in the world,

http://rev.seis.sc.edu/index.html

http://rev.seis.sc.edu/stations.html

and several types of ground motion can be seen.

Change of ground motion is accelerating globally in May, 2014

Dramatic underground plate motion at SMCO,  Snowmass, Colorado, USA

Bow stress in the North America caused a characteristic underground motion around Michigan

Unusual ground motion is recorded frequently at several stations recently, indicating that the plate movement would be active more and more, and a situation of 7 of 10 progresses steadily towards the time when the scenario is completed.

A station COCO, West Island, Cocos (Keeling) Islands, in the Indian Ocean

http://rev.seis.sc.edu/stations/?zip_or_station_code=II.COCO

is one of the stations showing such active ground motion.

It is thought that the ground motion of this place is related to the movement of Indo-Australian Plate

Indo-Australian Plate Movement Dynamics – 3D

and bending of Sunda Plate including Indonesia sinking during 7 of 10 scenario.

Schema of “Analysis of Indonesia Sinking – new ZT”

I show a history of ground motion of COCO in REV here.

It showed a wave of the normal ground motion until May 21, 2013. 

However, the wave became the clearly different patterns from June 9, 2013, 

though the seismograph during the periods from May 20 to June 9 was unavailable. Therefore, it is thought that something which greatly changes the ground motion must have occurred within this period.The ground motion has fluctuated lively since June 9, 2013. [As of 2014/06/19]

[History of ground motion of COCO; as of 2014/06/19]

* Before June, 2013 (2013/01/03 – 2013/05/21)

* 2013/06/09-10

* 2013/06/12 – 2013/12/16

* 2014/02/18 – 2014/04/25

* 2014/05/08 – 2014/06/19