Recent unusual active ground motion in North America, as of 2015/06/13

[Kojima]

Some stations in North America have been recently showing unusual active ground motion.

I show the image of ground motion from REV at each of these seven stations.

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

Note: Only the last 10-day image of ground motion is available in the REV site. 

(1) Code, Name and Location of station:

1) CN.SCHQ; SCHEFFERVILLE, PQ; 54.83 N, 66.83 W

2) WU.PEMO; Pembroke, Ontario, Canada; 45.68 N, 77.25 W

3) TA.G59A; Clarenceville, QC, USA; 45.08 N, 73.18 W

4) TA.X43A; Marvell, AR, USA; 34.52 N, 90.88 W

5) US.NATX; Nacogdoches, Texas, USA; 31.76 N, 94.66 W

6) IU.HKT; Hockley, Texas; 29.96 N, 95.84 W

7) CN.VIB; VAN INLET, BC; 53.25 N, 132.54 W

(2) Some representative images of ground motion:

1) CN.SCHQ: Quebec

1-1) [2015/01/03 - 2015/01/31], 1-2) [2015/02/01 - 2015/02/28], 1-3) [2015/03/01 - 2015/03/30]

1-4) [2015/04/01 - 2015/04/23]

1-5) [2015/05/22 - 2015/06/13]

2) WU.PEMO: Ontario

2-1) [2015/04/27 -2015/06/13]

3) TA.G59A: Quebec

3-1) [2015/02/03 - 2015/02/09]

3-2) [2015/02/17 - 2015/02/23]

3-3) [2015/02/24 - 2015/03/22]

3-4) [2015/03/23 - 2015/04/04]

3-5) [2015/04/05 - 2015/04/11]

3-6) [2015/04/12 - 2015/04/20]

3-7) [2015/04/21 - 2015/05/11]

3-8) [2015/05/12 - 2015/05/18]

3-9) [2015/05/19 - 2015/06/09]

3-10) [2015/06/10 - 2015/06/13]

4) TA.X43A: Arkansas

4-1) [2015/05/26 - 2015/05/31]

4-2) [2015/06/01 - 2015/06/13]

5) US.NATX: Texas

5-1) [2015/04/27 - 2015/05/16], 5-2) [2015/05/25 - 2015/06/13]

6) IU.HKT: Texas

6-1) [2015/06/01 - 2015/06/13]

7) CN.VIB: British Columbia

7-1) [2015/06/08 - 2015/06/13]

======================================================

(3) Image of ground motion:

1) CN.SCHQ: Quebec

1-1) [2015/01/03 - 2015/01/31]

1-2) [2015/02/01 - 2015/02/28]

1-3) [2015/03/01 - 2015/03/30]

1-4) [2015/04/01 - 2015/04/23]

1-5) [2015/05/22 - 2015/06/13]

————————————————————————

2) WU.PEMO: Ontario

2-1) [2015/04/27 -2015/06/13]

————————————————————————

3) TA.G59A: Quebec

3-1) [2015/02/03 - 2015/02/09]

3-2) [2015/02/17 - 2015/02/23]

3-3) [2015/02/24 - 2015/03/22]

3-4) [2015/03/23 - 2015/04/04]

3-5) [2015/04/05 - 2015/04/11]

3-6) [2015/04/12 - 2015/04/20]

3-7) [2015/04/21 - 2015/05/11]

3-8) [2015/05/12 - 2015/05/18]

3-9) [2015/05/19 - 2015/06/09]

3-10) [2015/06/10 -2015/06/13]

————————————————————————

4) TA.X43A: Arkansas

4-1) [2015/05/26 - 2015/05/31]

4-2) [2015/06/01 - 2015/06/13]

————————————————————————

5) US.NATX: Texas

5-1) [2015/04/27 - 2015/05/16]

5-2) [2015/05/25 - 2015/06/13]

————————————————————————

6) IU.HKT: Texas

6-1) [2015/06/01 - 2015/06/13]

————————————————————————

7) CN.VIB: British Columbia

7-1) [2015/06/08 - 2015/06/13]

[Kojima]

11) BK.MCCM; Marconi Conference Center, Marshall, CA, USA; 38.14 N, 122.88 W

11-1) [2015/07/12 - 22]

[Kojima]

10) CN.ICQ; ISLETS-CARIBOU, QC; 49.52 N, 67.27 W

10-1) [2015/05/24 - 06/13]

10-2) [2015/06/15 - 07/22]

[Kojima]

* Change of a ground motion pattern at N4.Z35B in Texas on 2015/06/17.

9) N4.Z35B; Perchaven, Sanger, TX, USA; 33.33 N, 97.25 W

9-1) [2015/06/15 - 2015/06/23]

[Kojima]

* Station NE.HNH also started to show unusual active ground motion on 2015/05/27, as of 2015/06/16.

8) NE.HNH; Hanover, NH, USA; 43.71 N, 72.29 W

8-1) [2015/05/26 - 2015/06/16]