Atlantic Rips: Ground motion of three stations along the Atlantic Rift; Iceland, Azores, and Ascension Island

I checked the ground motion of three stations along the Atlantic Rift showing the characteristic change of its ground motion in REV.

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

(1) II.BORG; Borgarfjordur, Asbjarnarstadir, Iceland; 64.75 N, 21.33 W

(2) II.CMLA; Cha de Macela, Sao Miguel Island, Azores; 37.76 N, 25.52 W

(3) II.ASCN; Butt Crater, Ascension Island; 7.93 S, 14.36 W

(1) II.BORG; Borgarfjordur, Asbjarnarstadir, Iceland; 64.75 N, 21.33 W

[Checked Period: 2013/01/01-2014/10/24]

1) A certain characteristic motion, a large wave like a very complex serration continuing rhythmically for a few hours, was recorded once in 2013; 2013/10/09, 

http://rev.seis.sc.edu/stations/II/BORG?year=2013&month=10&day=8&hour=12

and twice recently in 2014; 2014/10/06 and 2014/10/09.

http://rev.seis.sc.edu/stations/II/BORG?year=2014&month=10&day=5&hour=12

http://rev.seis.sc.edu/stations/II/BORG?year=2014&month=10&day=8&hour=12

* Note: This characteristic motion form was reported in the blogs posted before.

- Recent active ground motion in the Russian Far East seemingly reflects the N American plate bowing in process (station PET)

- Bow stress in the west along St. Lawrence Seaway on June 30, 2014

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

2) In addition, as posted in the recent earthquakes blog,

Recent Earthquakes

Iceland has many earthquakes recently.

[Example; 2014/10/12, 2014/10/14, 2014/10/15] 

So I searched the number of earthquakes since 2014/01/01 in Iceland. 

http://www.emsc-csem.org/Earthquake/?filter=yes

Results found from 2014/01/01 to 2014/10/24: 158

- Jan: 0, Feb: 1, Mar: 0, Apr: 2, May: 5, Jun: 0, Jul: 0, Aug: 23, Sep: 55, and Oct: 72. 

(2) II.CMLA; Cha de Macela, Sao Miguel Island, Azores; 37.76 N, 25.52 W

[Checked Period: 2013/01/01-2014/10/24]

1) A certain characteristic motion, a large wave like a very complex serration continuing rhythmically for a few hours, was recorded once in 2013; 2013/09/03,

http://rev.seis.sc.edu/stations/II/CMLA?year=2013&month=9&day=3&hour=12

and once in 2014; 2014/09/03. 

http://rev.seis.sc.edu/stations/II/CMLA?year=2014&month=9&day=2&hour=12

2) Jiggle appeared on 2014/07/30,

http://rev.seis.sc.edu/stations/II/CMLA?year=2014&month=7&day=29&hour=12

and 2014/10/20.

http://rev.seis.sc.edu/stations/II/CMLA?year=2014&month=10&day=19&hour=12

(3) II.ASCN; Butt Crater, Ascension Island; 7.93 S, 14.36 W

[Checked Period: 2013/01/01-2014/10/24]

The ground motion is very active from the beginning of the period to the present, greatly undulating up and down frequently.

1) 2013/01/01-2013/02/12: no image of heliplot

2) 2013/02/13-2013/11/18

http://rev.seis.sc.edu/stations/II/ASCN?year=2013&month=2&day=13&hour=22

3) 2013/11/19-2014/05/10: no image of heliplot

4) 2014/05/11-2014/06/09

http://rev.seis.sc.edu/stations/II/ASCN?year=2014&month=5&day=11&hour=0

5) 2014/06/10-2014/07/11: no image of heliplot

6) 2014/07/12-2014/07/31

7) 2014/08/01-2014/09/30

8) 2014/10/01-2014/10/24

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ZetaTalk: North Atlantic Rips

Written December 18, 2010

http://www.zetatalk.com/7of10/7of10-70.htm

Of course the northern Atlantic Rift is most vulnerable at the Azores, where three plates touch and movement in any one of them destabilizes the rift. Africa is tugging to roll to the East, and drop, and will do so before the European tsunami occurs. This makes the separation of the N American Plate from the Eurasian Plate at the Azores and upward quite vulnerable. We have stated that the Atlantic Gulf Stream will carry the tsunami primarily against the coast of the UK, so the major rip point would occur slightly south of the UK in the center of the Atlantic. The top of the rip will be west of Paris. The rip will primarily occur where the hot spots along the Atlantic Rift indicate weakness in the crust, and down to where the African Plate has already pulled away from an attachment to the American plates. Iceland will be spared during the 7 of 10 scenarios.

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The ZetaTalk Newsletter; Issue388, March 9, 2014

http://www.zetatalk.com/newsletr/issue388.htm

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