Big Under Ground Alteration Around the world

[Kojima]

In my previous blog,

Change of ground motion is accelerating globally in May, 2014

I showed some interesting ground motion found in the Rapid Earthquake Viewer (REV),

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

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

where the seismogram showing a group of some characteristic large ground motion forms,

indicating big under ground alteration, was observed at some stations. So far, I have found out 15 stations showing it by searching in REV.

01) 2014/03/05: IU.DAV: Davao, Philippines; 7.07 N, 125.58 E

02) 2014/04/16: CU.ANWB: Willy Bob, Antigua and Barbuda; 17.67 N, 61.79 W

03) 2014/04/16: IU.RAR: Rarotonga, Cook Islands; 21.21 S, 159.77 W

04) 2014/05/14: IU.LSZ; Lusaka, Zambia; 15.28 S, 28.19 E

05) 2014/05/18: IU.KMBO; Kilima Mbogo, Kenya; 1.13 S, 37.25 E

06) 2014/05/19: IU.RSSD; Black Hills, South Dakota, USA; 44.12 N, 104.04 W

07) 2014/05/21: IU.MAJO; Matsushiro, Japan; 36.55 N, 138.20 E

08) 2014/05/21: IU.RCBR; Riachuelo, Brazil; 5.83 S, 35.90 W

09) 2014/05/22: IU.TARA; Tarawa Island, Republic of Kiribati; 1.35 N, 172.92 E

10) 2014/05/27: US.MSO; Missoula, Montana, USA; 46.83 N, 113.94 W

11) 2014/05/28: US.CNNC; Cliffs of the Neuse, North Carolina, USA; 35.24 N, 77.89 W

12) 2014/05/29: US.KVTX; Kingsville, Texas, USA; 27.55 N, 97.89 W

13) 2014/05/30: US.TZTN; Tazewell, Tennessee, USA; 36.54 N, 83.55 W

14) 2014/06/02: US.DUG; Dugway, Tooele County, Utah, USA; 40.19 N, 112.81 W

15) 2014/06/05: IU.PMSA; Palmer Station, Antarctica; 64.77 S, 64.05 W

The ground motion started with a big smooth wave at almost same time in a day, between 16:00 and 20:00, at every 15 station, indicating the earth wobble in a factor in this ground motion, and ended with a big jagged wave for some hours.

I show the seismogram of each station below. 

01) 2014/03/05: IU.DAV: Davao, Philippines; 7.07 N, 125.58 E

02) 2014/04/16: CU.ANWB: Willy Bob, Antigua and Barbuda; 17.67 N, 61.79 W

03) 2014/04/16: IU.RAR: Rarotonga, Cook Islands; 21.21 S, 159.77 W

04) 2014/05/14: IU.LSZ; Lusaka, Zambia; 15.28 S, 28.19 E

05) 2014/05/18: IU.KMBO; Kilima Mbogo, Kenya; 1.13 S, 37.25 E

06) 2014/05/19: IU.RSSD; Black Hills, South Dakota, USA; 44.12 N, 104.04 W

07) 2014/05/21: IU.MAJO; Matsushiro, Japan; 36.55 N, 138.20 E

08) 2014/05/21: IU.RCBR; Riachuelo, Brazil; 5.83 S, 35.90 W

09) 2014/05/22: IU.TARA; Tarawa Island, Republic of Kiribati; 1.35 N, 172.92 E

10) 2014/05/27: US.MSO; Missoula, Montana, USA; 46.83 N, 113.94 W

11) 2014/05/28: US.CNNC; Cliffs of the Neuse, North Carolina, USA; 35.24 N, 77.89 W

12) 2014/05/29: US.KVTX; Kingsville, Texas, USA; 27.55 N, 97.89 W

13) 2014/05/30: US.TZTN; Tazewell, Tennessee, USA; 36.54 N, 83.55 W

14) 2014/06/02: US.DUG; Dugway, Tooele County, Utah, USA; 40.19 N, 112.81 W

15) 2014/06/05: IU.PMSA; Palmer Station, Antarctica; 64.77 S, 64.05 W

[Kojima]

147) 2014/04/20: IU.RAR: Rarotonga, Cook Islands; 21.21 S, 159.77 W

http://rev.seis.sc.edu/stations/IU/RAR?year=2015&month=4&da...

[Kojima]

146) 2015/04/17: US.WMOK; Wichita Mountains, Oklahoma, USA; 34.74 N, 98.78 W

http://rev.seis.sc.edu/stations/US/WMOK?year=2015&month=4&d...

http://rev.seis.sc.edu/stations/US/WMOK?year=2015&month=4&d...

[Kojima]

145) 2015/04/15: US.BRAL; Brewton, Alabama, USA; 31.17 N, 87.05 W

http://rev.seis.sc.edu/stations/US/BRAL?year=2015&month=4&d...

[Kojima]

* Ground motion from 2015/04/13 12:00 to 2015/04/15/ 12:00 at US.ELK (as of 2015/04/15 02:00)

[Kojima]

144) 2013/04/03; 2015/04/13: IU.HNR; Honiara, Solomon Islands; 9.44 S, 159.95 E

http://rev.seis.sc.edu/stations/IU/HNR?year=2013&month=4&da...

http://rev.seis.sc.edu/stations/IU/HNR?year=2015&month=4&da...

[Kojima]

143) 2015/04/13: US.ELK; Elko, Nevada, USA; 40.74 N, 115.24 W

http://rev.seis.sc.edu/stations/US/ELK?year=2015&month=4&da...

[Kojima]

142) 2015/04/10: US.BLA; Blacksburg, Virginia, USA; 37.21 N, 80.42 W

http://rev.seis.sc.edu/stations/US/BLA?year=2015&month=4&da...

[Kojima]

141) 2015/04/08: IU.PMG; Port Moresby, New Guinea; 9.40 S, 147.16 E

http://rev.seis.sc.edu/stations/IU/PMG?year=2015&month=4&da...

[Kojima]

140) 2015/04/07: US.BOZ; Bozeman, Montana, USA; 45.60 N, 111.63 W

http://rev.seis.sc.edu/stations/US/BOZ?year=2015&month=4&da...

[Kojima]

139) 2015/04/06: CU.ANWB: Willy Bob, Antigua and Barbuda; 17.67 N, 61.79 W

http://rev.seis.sc.edu/stations/CU/ANWB?year=2015&month=4&d...