Sociable

Sunday, February 26, 2012

Earthquake Swarm at Salton Buttes Volcano in Southern California

The above in the blue squares, are today's earthquakes. You can see the swarm at the south end of the bean shaped lake. That's Salton Buttes volcano. This is from the USGS website.


Here is an example of today's earthquakes, in waveform. This is from the USGS.

Above is a map of the Eastern California Shear Zone, where there is a plate boundry, a good many faults and a rifting zone that will eventually separate California from the North American mainland. It has already done so further to the south, where Baja California is drifting away from mainland Mexico (North American Plate). Salton Buttes Volcano is at the southern tip of the pinkish area.


Here I am going nuts with my two favorite cameras, a Sony FX-1 and a Holga 120 format film still camera. This is at some vents and mud volcanos just east of the lava dome called Obsidian Butte, at the Salton Buttes volcano.
Here is a couple of vents at Salton Butte volcano, where brine is super heated by cooling magma about a mile and a half down, and brought to the surface, along with Co2 and Sulfur.

Here is a USGS example of the waveform on just one of the quakes on Feb. 11, 2012, at the volcano.


Here is a map of Southern California. The blue squares are earthquakes within 24 hours on Feb. 11, 2012, and the ones at the south end of the big bean shaped lake are the Salton Buttes events.


There has been over a hundred small earthquakes at Salton Buttes volcano, on the Salton Sea, in the Southern California desert. They range from around 20 miles deep to under a mile deep. Much of the swarm is within a mile or two of the volcano, and then there is some more wide spread activity. One spring just outside of Indio has kicked into increased micro quakes as well, and usually does that when Salton Buttes has a swarm.

In the list below, look for those near the town of Niland, Obsidian Butte and Bombay Beach. Those are the events associated with the volcano.

I live not far from this volcano, and have been feeling vibration in the ground. It is very faint and subtle but present, indeed.

There is a measured and documented hot magma chamber under Salton Buttes, about 6 to 4 miles down, and extending for about 20 miles. I believe that this chamber is linked via volcanic plumbing to the other systems in the area, including Covington Flat Volcano, in the Joshua Three National Park, and Serra Prieto, just south of Mexicali.

The other day, my household members and I smelled a scent much like rotten eggs.

As I say all the time here on this blog, Salton Buttes is a part of the Mid-Oceanic ridge that extends for perhaps 7000 miles. It is a spreading zone, or a rifting zone - an area where the plates are moving away from each other, and new land is being formed via upwelling magma (lava).

Here is the USGS link to this stream of events:


And below is a list of these earthquakes up to 10:15 pm, PST Feb 26, 2012.



8 km ( 5 mi) W of Niland, CA

1.3

2012/02/26

18:45:06

33.318N

116.101W

2.9

10 km ( 6 mi) SW of Salton Sea Beach, CA

1.5

2012/02/26

14:27:24

33.017N

116.408W

22.9

18 km (11 mi) ESE of Julian, CA

1.5

2012/02/26

13:58:24

33.121N

116.251W

12.3

11 km ( 7 mi) WSW of Ocotillo Wells, CA

1.1

2012/02/26

13:51:07

33.320N

116.638W

32.5

15 km ( 9 mi) NE of Lake Henshaw, CA

1.5

2012/02/26

13:43:55

33.373N

115.595W

8.5

13 km ( 8 mi) E of Bombay Beach, CA

1.0

2012/02/26

13:18:04

33.051N

116.608W

11.7

3 km ( 2 mi) SW of Julian, CA

2.5

2012/02/26

12:42:49

33.254N

115.688W

4.1

10 km ( 7 mi) NNW of Obsidian Butte, CA

1.3

2012/02/26

12:28:47

33.310N

116.263W

8.3

12 km ( 8 mi) NE of Borrego Springs, CA

2.1

2012/02/26

12:06:13

33.188N

115.610W

2.8

3 km ( 2 mi) NE of Obsidian Butte, CA

1.5

2012/02/26

11:41:33

33.085N

115.874W

21.8

24 km (15 mi) WNW of Westmorland, CA

1.4

2012/02/26

11:37:57

33.680N

116.274W

3.0

2 km ( 1 mi) ENE of La Quinta, CA

1.3

2012/02/26

11:36:26

33.085N

116.372W

4.4

18 km (11 mi) S of Borrego Springs, CA

1.5

2012/02/26

11:35:40

32.627N

116.545W

19.2

10 km ( 6 mi) NE of Tecate, Baja California, Mexico

2.3

2012/02/26

11:35:02

33.393N

115.473W

17.3

18 km (11 mi) NNE of Niland, CA

2.2

2012/02/26

11:34:59

33.272N

115.665W

7.7

11 km ( 7 mi) SE of Bombay Beach, CA

2.0

2012/02/26

11:33:06

33.227N

115.595W

0.1

7 km ( 5 mi) NNE of Obsidian Butte, CA

1.4

2012/02/26

11:31:43

33.522N

115.808W

0.1

12 km ( 8 mi) E of North Shore, CA

2.4

2012/02/26

11:22:27

33.188N

115.607W

2.3

3 km ( 2 mi) NE of Obsidian Butte, CA

1.6

2012/02/26

11:01:11

33.225N

115.566W

0.6

5 km ( 3 mi) WSW of Niland, CA

1.3

2012/02/26

10:58:46

33.172N

115.608W

0.0

3 km ( 2 mi) E of Obsidian Butte, CA

1.8

2012/02/26

10:18:01

33.457N

116.902W

12.1

12 km ( 7 mi) NNW of Palomar Observatory, CA

2.4

2012/02/26

10:00:53

33.245N

115.570W

1.6

5 km ( 3 mi) W of Niland, CA

1.5

2012/02/26

10:00:17

33.253N

115.576W

5.7

6 km ( 4 mi) WNW of Niland, CA

1.4

2012/02/26

09:34:02

33.181N

115.600W

0.0

4 km ( 2 mi) ENE of Obsidian Butte, CA

2.9

2012/02/26

08:40:22

33.219N

115.558W

2.2

5 km ( 3 mi) WSW of Niland, CA

1.4

2012/02/26

08:27:50

33.146N

115.880W

6.4

19 km (12 mi) SSE of Salton City, CA

1.8

2012/02/26

08:25:43

33.248N

115.562W

1.1

5 km ( 3 mi) WNW of Niland, CA

2.2

2012/02/26

04:37:25

33.243N

115.561W

1.5

4 km ( 3 mi) W of Niland, CA

1.8

2012/02/26

04:36:21

33.238N

115.564W

1.0

5 km ( 3 mi) W of Niland, CA

2.4

2012/02/26

04:29:46

33.290N

115.330W

21.5

18 km (11 mi) ENE of Niland, CA

1.6

2012/02/26

04:20:44

33.298N

115.491W

9.1

7 km ( 4 mi) NNE of Niland, CA

1.5

2012/02/26

04:06:20

33.306N

115.532W

6.7

8 km ( 5 mi) NNW of Niland, CA

1.7

2012/02/26

04:05:27

33.334N

115.517W

6.9

11 km ( 7 mi) N of Niland, CA

1.5

2012/02/26

03:37:49

33.241N

115.592W

4.4

7 km ( 5 mi) W of Niland, CA

3.2

2012/02/26

03:31:19

33.230N

115.561W

2.3

5 KM ( 3 MI) WSW OF NILAND, CA

1.5

2012/02/25

22:52:54

33.965N

116.356W

9.0

14 km ( 9 mi) E of Desert Hot Springs, CA

1.2

2012/02/25

20:13:43

33.463N

116.459W

11.0

22 km (14 mi) ESE of Anza, CA

1.3

2012/02/25

18:32:23

32.742N

116.088W

6.2

9 km ( 5 mi) W of Ocotillo, CA

1.5

2012/02/25

14:45:02

33.046N

116.456W

4.5

12 km ( 8 mi) ESE of Julian, CA

1.8

2012/02/25

14:25:28

32.575N

115.689W

11.3

21 km (13 mi) WSW of Calexico, CA

2.2

2012/02/25

09:25:09

32.598N

115.728W

8.5

22 km (14 mi) S of Seeley, CA

1.8

2012/02/25

08:32:22

32.561N

115.670W

10.7

21 km (13 mi) SW of Calexico, CA

1.0

2012/02/25

07:12:05

33.253N

116.547W

12.3

16 km (10 mi) W of Borrego Springs, CA

2.7

2012/02/25

06:19:13

32.582N

115.751W

2.5

24 km (15 mi) SSW of Seeley, CA

1.2

2012/02/25

05:21:35

33.695N

116.805W

19.7

10 km ( 6 mi) WSW of Idyllwild, CA

1.6

2012/02/25

01:36:25

32.916N

116.233W

8.1

27 km (17 mi) SSW of Ocotillo Wells, CA

1.2

2012/02/25

01:17:40

32.909N

116.234W

8.3

28 km (17 mi) SSW of Ocotillo Wells, CA

1.4

2012/02/25

00:21:43

33.145N

115.757W

11.5

12 km ( 7 mi) WSW of Obsidian Butte, CA

1.3

2012/02/24

23:04:57

33.712N

116.832W

18.8

8 km ( 5 mi) SE of Valle Vista, CA

1.6

2012/02/24

19:19:50

33.232N

115.549W

0.1

3 km ( 2 mi) WSW of Niland, CA

1.2

2012/02/24

17:38:39

33.343N

116.275W

12.8

14 km ( 9 mi) NE of Borrego Springs, CA

1.4

2012/02/24

16:39:04

33.404N

116.406W

0.1

18 km (11 mi) N of Borrego Springs, CA

1.7

2012/02/24

16:25:33

33.362N

116.441W

8.6

14 km ( 9 mi) NNW of Borrego Springs, CA

1.1

2012/02/24

15:08:00

33.320N

116.365W

9.9

8 km ( 5 mi) N of Borrego Springs, CA

1.2

2012/02/24

14:46:48

33.730N

116.844W

17.9

6 km ( 3 mi) ESE of Valle Vista, CA

1.9

2012/02/24

07:42:33

32.657N

115.947W

6.5

10 km ( 6 mi) SSE of Ocotillo, CA

1.9

2012/02/23

22:38:56

32.373N

115.539W

10.3

32 km (20 mi) SSW of Mexicali, Baja California, Mexico

1.0

2012/02/23

22:19:46

33.362N

116.420W

10.4

14 km ( 8 mi) NNW of Borrego Springs, CA

1.2

2012/02/23

20:28:04

33.206N

115.558W

0.0

5 km ( 3 mi) SW of Niland, CA

1.5

2012/02/23

13:48:36

33.641N

116.716W

15.1

10 km ( 6 mi) NNW of Anza, CA

1.6

2012/02/23

12:44:47

33.347N

115.731W

7.3

1 km ( 0 mi) SSW of Bombay Beach, CA

1.0

2012/02/23

10:58:21

33.370N

116.303W

12.1

15 km ( 9 mi) NNE of Borrego Springs, CA

1.0

2012/02/23

08:45:13

33.405N

116.382W

8.1

18 km (11 mi) N of Borrego Springs, CA

2.0

2012/02/23

01:33:21

32.697N

115.710W

4.0

11 km ( 7 mi) S of Seeley, CA

1.1

2012/02/23

00:54:50

33.787N

116.073W

4.5

15 km ( 9 mi) NE of Coachella, CA

2.5

2012/02/22

23:30:21

33.957N

116.969W

5.0

4 km ( 2 mi) N of Beaumont, CA

1.1

2012/02/22

20:07:21

32.900N

116.240W

8.0

28 km (17 mi) ENE of Pine Valley, CA

1.4

2012/02/22

18:11:06

33.154N

115.630W

0.8

2 km ( 1 mi) SSE of Obsidian Butte, CA

1.3

2012/02/22

17:19:24

33.249N

116.409W

4.9

3 km ( 2 mi) W of Borrego Springs, CA

1.6

2012/02/22

16:50:20

32.657N

115.919W

6.5

12 km ( 7 mi) SE of Ocotillo, CA

1.9

2012/02/22

15:07:37

32.847N

115.734W

4.6

7 km ( 5 mi) NW of Seeley, CA

1.9

2012/02/22

13:29:16

33.789N

116.080W

5.5

15 km ( 9 mi) NE of Coachella, CA

1.9

2012/02/22

12:52:59

33.451N

116.625W

6.8

12 km ( 8 mi) SSE of Anza, CA

1.1

2012/02/22

11:33:03

33.272N

116.245W

5.6

12 km ( 8 mi) ENE of Borrego Springs, CA

1.2

2012/02/22

11:33:02

33.270N

116.227W

5.7

14 km ( 9 mi) E of Borrego Springs, CA

1.1

2012/02/22

08:55:07

33.782N

116.081W

4.6

14 km ( 9 mi) NE of Coachella, CA

1.5

2012/02/22

06:51:35

32.910N

116.222W

7.3

27 km (17 mi) SSW of Ocotillo Wells, CA

1.1

2012/02/22

06:43:31

32.910N

116.226W

8.0

27 km (17 mi) SSW of Ocotillo Wells, CA

1.7

2012/02/22

05:35:57

33.791N

116.088W

2.4

15 km ( 9 mi) NNE of Coachella, CA

2.6

2012/02/22

05:12:06

32.141N

115.279W

12.6

23 km (14 mi) SW of Guadalupe Victoria, Baja California, Mexico

2.1

2012/02/22

00:52:44

32.439N

115.488W

19.7

24 km (15 mi) S of Mexicali, Baja California, Mexico

2.1

2012/02/21

23:57:22

32.185N

115.230W

8.2

16 km (10 mi) SW of Guadalupe Victoria, Baja California, Mexico

1.5

2012/02/21

20:09:01

32.652N

115.926W

11.7

12 km ( 7 mi) SE of Ocotillo, CA

1.6

2012/02/21

18:17:23

33.783N

116.070W

5.5

15 km ( 9 mi) NE of Coachella, CA

1.3

2012/02/21

17:02:04

33.781N

116.065W

5.6

15 km ( 9 mi) NE of Coachella, CA

1.8

2012/02/21

15:23:15

33.663N

116.731W

15.3

9 km ( 6 mi) S of Idyllwild, CA

1.5

2012/02/21

11:06:01

33.977N

116.975W

9.9

6 km ( 4 mi) N of Beaumont, CA

1.5

2012/02/21

07:22:48

32.685N

115.682W

7.9

12 km ( 7 mi) S of Seeley, CA

2.1

2012/02/21

05:52:24

33.974N

116.643W

17.4

11 km ( 7 mi) SSW of Morongo Valley, CA

1.2

2012/02/21

02:37:03

32.965N

116.232W

11.6

22 km (14 mi) SSW of Ocotillo Wells, CA

1.4

2012/02/21

00:21:21

32.995N

116.453W

8.8

15 km ( 9 mi) SE of Julian, CA

1.2

2012/02/20

20:51:25

32.671N

115.844W

6.2

16 km (10 mi) ESE of Ocotillo, CA

1.7

2012/02/20

18:39:38

33.001N

115.566W

12.4

4 km ( 2 mi) NW of Brawley, CA

1.6

2012/02/20

16:51:39

33.643N

116.731W

15.2

11 km ( 7 mi) NNW of Anza, CA

1.0

2012/02/20

16:48:07

33.246N

115.549W

0.3

3 km ( 2 mi) WNW of Niland, CA

1.1

2012/02/20

13:56:56

33.226N

115.546W

1.7

3 km ( 2 mi) WSW of Niland, CA

1.5

2012/02/20

13:15:31

33.210N

115.561W

1.8

5 km ( 3 mi) SW of Niland, CA

1.4

2012/02/20

13:10:55

33.203N

115.559W

1.6

6 km ( 4 mi) SW of Niland, CA

1.4

2012/02/20

12:40:33

33.221N

115.553W

3.4

4 km ( 3 mi) WSW of Niland, CA

1.1

2012/02/20

12:32:53

33.217N

115.558W

0.0

5 km ( 3 mi) WSW of Niland, CA

1.6

2012/02/20

12:31:10

33.213N

115.558W

0.4

5 km ( 3 mi) SW of Niland, CA

2.0

2012/02/20

12:30:10

33.213N

115.554W

0.2

5 km ( 3 mi) SW of Niland, CA

1.3

2012/02/20

12:28:38

33.211N

115.558W

1.3

5 km ( 3 mi) SW of Niland, CA

1.8

2012/02/20

12:08:01

33.210N

115.557W

0.0

5 km ( 3 mi) SW of Niland, CA

1.8

2012/02/20

12:02:17

33.236N

115.554W

0.1

4 km ( 2 mi) W of Niland, CA

1.5

2012/02/20

12:02:12

33.214N

115.558W

1.3

5 km ( 3 mi) SW of Niland, CA

1.3

2012/02/20

11:46:29

33.237N

115.546W

0.2

3 km ( 2 mi) W of Niland, CA

1.1

2012/02/20

11:46:19

33.256N

115.536W

1.8

3 km ( 2 mi) NW of Niland, CA

2.7

2012/02/20

11:41:32

33.207N

115.556W

1.2

5 km ( 3 mi) SW of Niland, CA

3.0

2012/02/20

11:37:25

33.212N

115.554W

0.4

5 KM ( 3 MI) SW OF NILAND, CA

1.3

2012/02/20

11:32:07

33.235N

115.549W

2.7

3 km ( 2 mi) W of Niland, CA

2.5

2012/02/20

11:29:38

33.214N

115.556W

1.2

5 km ( 3 mi) SW of Niland, CA

1.0

2012/02/20

07:24:35

33.248N

115.547W

1.7

3 km ( 2 mi) WNW of Niland, CA

1.2

2012/02/20

07:16:27

33.245N

115.547W

2.4

3 km ( 2 mi) WNW of Niland, CA

2.9

2012/02/20

06:10:52

33.454N

116.526W

11.6

18 km (11 mi) SE of Anza, CA

1.0

2012/02/20

05:51:50

33.240N

115.542W

0.8

3 km ( 2 mi) W of Niland, CA

1.3

2012/02/20

05:39:50

33.238N

115.552W

2.1

4 km ( 2 mi) W of Niland, CA

2.2

2012/02/20

05:37:19

33.217N

115.552W

0.0

4 km ( 3 mi) SW of Niland, CA

1.3

2012/02/20

04:01:19

33.236N

115.553W

3.3

4 km ( 2 mi) W of Niland, CA

1.3

2012/02/20

03:58:11

33.235N

115.548W

3.1

3 km ( 2 mi) W of Niland, CA

1.5

2012/02/20

03:57:13

33.245N

115.551W

0.3

3 km ( 2 mi) W of Niland, CA

1.4

2012/02/20

02:46:44

33.245N

115.547W

2.1

3 km ( 2 mi) WNW of Niland, CA

1.4

2012/02/20

02:39:56

33.236N

115.547W

2.9

3 km ( 2 mi) W of Niland, CA

1.1

2012/02/20

01:32:13

33.237N

115.546W

3.2

3 km ( 2 mi) W of Niland, CA

1.4

2012/02/20

01:10:56

33.246N

115.549W

0.3

3 km ( 2 mi) WNW of Niland, CA

2.3

2012/02/20

01:06:53

33.219N

115.555W

0.6

4 km ( 3 mi) WSW of Niland, CA

1.5

2012/02/20

01:03:52

33.206N

115.556W

3.1

5 km ( 3 mi) SW of Niland, CA

1.9

2012/02/20

01:02:46

33.209N

115.552W

0.0

5 km ( 3 mi) SW of Niland, CA

1.2

2012/02/20

00:53:44

33.255N

115.535W

0.2

3 km ( 2 mi) NW of Niland, CA

1.6

2012/02/20

00:18:23

33.208N

115.553W

1.3

5 km ( 3 mi) SW of Niland, CA