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Purple Mountain, Yellowstone Park, WY (YPM) (Seismometer is active)
Finally active.
Lat: 44° 39' 25.80" N
Lon: 110° 52' 7.20" W
Elev: 2,582 m.
(8,471' 1.4")
Distance/heading from YPM to all other stations (closest to furthest, in miles):
YMR YHH YNM YMC B950 YNR YML YWB YFT YHB YUF B206 YDC YHL YLT H17A YMV LKWY B208 B944 YJC YPP YLA YMS YPC YTP YMP MCID YSB FLWY YPK YNE YHR
4.80
W
9.11
N
9.42
ENE
9.77
NW
10.11
ENE
10.15
ENE
11.66
ESE
11.96
WSW
14.32
S
17.31
WNW
17.95
E
18.03
E
18.59
W
20.43
WNW
20.58
SE
23.15
SE
23.59
NNE
23.92
E
23.95
ESE
24.46
SE
26.41
E
26.88
S
31.18
ESE
31.96
SE
33.25
E
34.11
ESE
35.48
E
35.80
SW
38.55
ENE
40.58
SSE
46.80
E
48.65
ENE
55.04
SE
Archived seismograph traces (updated all the time; any missing days means there was no graph that day):
(The percentage is the "activity percentage," which is a number I made up myself as an attempt to guess how much trace activity there is in a graph from its file size. Note that all of this is entirely guesswork on my part, albeit educated guesswork... I just had to have some way to tell how "busy" a graph is without having to actually look at it. Bear in mind, a high activity doesn't mean "quakes"; a lot of it is just wind and other noise, like this garbage (which gets a 0.0% activity rating). But a lot isn't noise. Just... don't trust these numbers. They have no basis in scientific fact.)

Live Trace (13.1%) | Seismo-Calendar
2017
January
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8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31  
February
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5 6 7 8 9 10 11
12 13 14 15 16 17 18
19 20 21 22 23 24 25
26 27 28  
March
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5 6 7 8 9 10 11
12 13 14 15 16 17 18
19 20 21 22 23 24 25
26 27 28 29 30 31
2016
January
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3 4 5 6 7 8 9
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30
31  
February
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7 8 9 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29  
March
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6 7 8 9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26
27 28 29 30 31  
April
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10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30
May
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15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31  
June
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26 27 28 29 30  
July
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17 18 19 20 21 22 23
24 25 26 27 28 29 30
31  
August
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7 8 9 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30 31  
September
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25 26 27 28 29 30
October
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9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30 31  
November
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6 7 8 9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26
27 28 29 30  
December
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4 5 6 7 8 9 10
11 12 13 14 15 16 17
18 19 20 21 22 23 24
25 26 27 28 29 30 31
2015
January
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4 5 6 7 8 9 10
11 12 13 14 15 16 17
18 19 20 21 22 23 24
25 26 27 28 29 30 31
February
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1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
March
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1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31  
April
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12 13 14 15 16 17 18
19 20 21 22 23 24 25
26 27 28 29 30  
May
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3 4 5 6 7 8 9
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30
31  
June
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7 8 9 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30  
July
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5 6 7 8 9 10 11
12 13 14 15 16 17 18
19 20 21 22 23 24 25
26 27 28 29 30 31
August
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  1
2 3 4 5 6 7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30 31  
September
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6 7 8 9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26
27 28 29 30  
October
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4 5 6 7 8 9 10
11 12 13 14 15 16 17
18 19 20 21 22 23 24
25 26 27 28 29 30 31
November
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1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30  
December
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6 7 8 9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26
27 28 29 30 31  
2014
January
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5 6 7 8 9 10 11
12 13 14 15 16 17 18
19 20 21 22 23 24 25
26 27 28 29 30 31
February
SMTWTFS
  1
2 3 4 5 6 7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28
March
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  1
2 3 4 5 6 7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30 31  
April
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6 7 8 9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26
27 28 29 30  
May
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11 12 13 14 15 16 17
18 19 20 21 22 23 24
25 26 27 28 29 30 31
June
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1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30  
July
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6 7 8 9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26
27 28 29 30 31  
August
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3 4 5 6 7 8 9
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30
31  
September
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7 8 9 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30  
October
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5 6 7 8 9 10 11
12 13 14 15 16 17 18
19 20 21 22 23 24 25
26 27 28 29 30 31
November
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  1
2 3 4 5 6 7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30  
December
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  1 2 3 4 5 6
7 8 9 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30 31  
2013
April
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7 8 9 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30  
May
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12 13 14 15 16 17 18
19 20 21 22 23 24 25
26 27 28 29 30 31
June
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  1
2 3 4 5 6 7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30  
July
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7 8 9 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30 31  
August
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4 5 6 7 8 9 10
11 12 13 14 15 16 17
18 19 20 21 22 23 24
25 26 27 28 29 30 31
September
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1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30  
October
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  1 2 3 4 5
6 7 8 9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26
27 28 29 30 31  
November
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3 4 5 6 7 8 9
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30
December
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8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31