Alaska Regional Seismic Network

Alaskan earthquakes are monitored by Alaska regional seismic network. The Alaska Earthquake Information Center (AEIC) records and analyzes data from several networks comprising about 400 sites (or about 800 channels of seismic data) throughout Alaska and the surrounding regions. Many of these stations are in very remote areas with extreme climatic conditions and can only be reached by helicopter, late in summer after the snow has melted. Of these, about 180 sites are operated by the Alaska Volcano Observatory (AVO), 18 by the West Coast and Alaska Tsunami Warning Center (WC/ATWC), 3 by IRIS, and 2 are newly installed as part of the ANSS network. About 40 sites in southern coastal Alaska were installed by the U.S. Geological Survey (USGS) and now are run by AEIC, with support from a National Earthquake Hazards Reduction Program grant. While majority of the sites are equipped with the short-period analog recording systems, we now have a total of 116 broadband digital stations operating in Alaska. Three of these are the Global Seismic Network stations, two are the newly installed ANSS sites, fifteen are installed by AVO on volcanoes, eight are operated by WC/ATWC, and the rest were installed by AEIC. In addition, AEIC is exchanging real-time data with Canadian regional network augmenting station coverage in the Alaska/Canada border region. AEIC also receives data from six Global Seismic Network sites in Eastern Russia.

AEIC broad-band stations:

1
ATKA
  52.2027
-174.1955
   0.0550
CREST
Atka Island
2
BAGL
  60.4901
-142.0895
   0.0550
STEEP
Bagley Icefield
3
BARK
  60.4035
-142.4911
   1.1415
STEEP
Barkley Ridge
4
BARN
  61.0599
-141.6601
   1.9150
STEEP
Barnard Glacier
5
BERG
  60.3928
-143.7018
   0.4740
STEEP
Berg Lake
6
BESE
  58.5796
-134.8543
   0.8702
CREST
Bessie Mountain
7
BGLC
  60.1210
-143.2821
   0.0100
STEEP
Bering Glacier BLM Camp
8
BMR
  60.9682
-144.6030
   0.8420
CREST
Bremner River
9
BPAW
  64.1002
-150.9848
   0.6190
AKBB
Bear Paw Mountain
10
BRLK
  59.7510
-150.9063
   0.4090
AKBB
Bradley Lake
11
BWN
  64.1735
-149.2963
   0.3690
AKBB
Brown
12
CAST
  63.4193
-152.0820
   0.6110
AKBB
Castle Rocks
13
CCB
  64.6460
-147.8026
   0.2480
AKBB
Clear Creek Butte
14
CHIB
  55.8378
-155.5796
   0.2500
AKBB
Chirikoff Island
15
CHUM
  63.8827
-152.3147
   0.0580
AKBB
Lake Minchumina
16
CNP
  59.5259
-151.2349
   0.5720
AKBB
China Poot
17
COLD
  67.2274
-150.2013
   0.3770
CREST
Coldfoot Broadband
18
DCPH
  59.0912
-138.2136
   0.6780
CREST
Deception Hills
19
DDM
  63.7861
-145.8649
   0.9300
AKBB
Donnely Dome
20
DHY
  63.0753
-147.3760
   1.6090
AKBB
Denali Highway
21
DIV
  61.1297
-145.7728
   0.9390
CREST
Divide Microwave
22
DOT
  63.6487
-144.0624
   0.6710
CREST
Dot Lake
23
EYAK
  60.5493
-145.7479
   0.1463
CREST
Cordova Ski Area
24
FALS
  54.8573
-163.4155
   0.0457
CREST
False Pass
25
FIB
  61.1662
-150.1753
   0.0620
AKBB
Fire Island
26
FYU
  66.5660
-145.2316
   0.1370
AKBB
Fort Yukon
27
GAMB
  63.7767
-171.7008
   0.0100
CREST
Gambell
28
GCSA
  64.7461
-156.8792
   0.0460
PEPP
Galena City School
29
GOAT
  60.5810
-144.7271
   0.8970
STEEP
Goat Mountain
30
GRIN
  60.2810
-143.3190
   0.6250
STEEP
Grindle Hills
31
GRNC
  60.7319
-141.7538
   2.1160
STEEP
Granite Creek
32
HARP
  62.4076
-145.1550
   0.6007
AKBB
HAARP
33
HDA
  64.4057
-146.9407
   0.4270
AKBB
Harding
34
HOM
  59.6578
-151.6494
   0.2210
AKBB
Homer Trailer
35
ISLE
  60.6025
-142.3391
   1.4850
STEEP
Juniper Island
36
JIS
  58.2762
-134.3831
   0.0100
AKBB
Juneau Island
37
KHIT
  60.4432
-143.2490
   1.1010
STEEP
Khitrov Hills
38
KIAG
  60.9236
-142.3587
   1.7730;
STEEP
Kiagna River
39
KLU
  61.4930
-145.9206
   1.0210
AKBB
Klutina Pass
40
KTH
  63.5532
-150.9209
   1.1720
AKBB
Kantishna Hills
41
KULT
  60.2479
-142.7214
   1.0060
STEEP
Kultieth River Mtn
42
LOGN
  60.8245
-141.0028
   1.6650
STEEP
Logan Glacier
43
MCAR
  61.3841
-143.0219
   0.4470
STEEP
McCarthy VSAT
44
MCK
  63.7323
-148.9349
   0.6180
AKBB
McKinley Park
45
MDM
  64.9588
-148.2291
   0.6340
AKBB
Murphy Dome
46
MESA
  60.1790
-141.9485
   1.9190
STEEP
MESA
47
MLY
  65.0308
-150.7392
   0.8040
AKBB
Manley Hot Springs
48
NICH
  60.2366
-143.9672
   0.5070
STEEP
Nichawak Mountain
49
NIKH
  52.9732
-168.8530
   0.1990
CREST
Nikolski High Hill
50
PAX
  62.9704
-145.4676
   1.1300
CREST
Paxson
51
PIN
  60.0967
-140.2566
   0.9750
CREST
Pinnacle
52
PNL
  59.6675
-139.3996
   0.5960
AKBB
Peninsula
53
PPLA
  62.8968
-152.1870
   1.5190
CREST
Purkeypile
54
PS01
  70.2582
-148.6108
   0.0020
PSBB
TAPS Pump Station 1
55
PS04
  68.4218
-149.3538
   0.8510
PSBB
TAPS Pump Station 4
56
PS05
  66.8114
-150.6619
   0.3310
PSBB
TAPS Pump Station 5
57
PS06
  65.8549
-149.7344
   0.2800
PSBB
TAPS Pump Station 6
58
PS07
  65.3106
-148.2791
   0.2900
PSBB
TAPS Pump Station 7
59
PS08
  64.5426
-146.8196
   0.3200
PSBB
TAPS Pump Station 8
60
PS09
  63.9303
-145.7659
   0.4789
PSBB
TAPS Pump Station 9
61
PS10
  63.4233
-145.7684
   0.7324
PSBB
TAPS Pump Station 10
62
PS11
  62.0793
-145.4730
   0.3770
PSBB
TAPS Pump Station 11
63
PS12
  61.4754
-145.1438
   0.5688
PSBB
TAPS Pump Station 12
64
PTPK
  61.1874

   1.9330
STEEP
Patty Peak Repeater
65
RAG
  60.3869
-144.6751
   0.7710
AKBB
Ragged Mountains
66
RC01
  61.0896
-149.7368
   0.3830
AKBB
Rabbit Creek
67
RIDG
  63.7407
-144.8417
   0.8880
AKBB
Independent Ridge
68
RDOG
  68.0547
-162.9049
   0.4210
AKBB
Red Dog Mine
69
RKAV
  60.2998
-141.3458
   1.6470
STEEP
Rock Avalanche
70
RND
  63.4061
-148.8575
   0.9780
AKBB
Reindeer
71
SAMH
  60.1298
-140.7809
   1.1400
STEEP
Samovar Hills
72
SAW
  61.8076
-148.3295
   0.7820
AKBB
Sawmill
73
SCM
  61.8325
-147.3268
   1.0560
AKBB
Sheep Mountain
74
SCRK
  63.9769
-143.9859
   1.3750
AKBB
Sand Creek
75
SII
  56.5600
-154.1819
   0.5000
AKBB
Sitkinak Island
76
SKN
  61.9806
-151.5292
   0.6030
AKBB
Skwentna
77
SPIA
  57.1776
-170.2455
   0.0840
CREST
St Paul Island
78
SSN
  61.4640
-150.7444
   1.2930
AKBB
Susitna
79
SUCK
  60.0725
-143.7770
   0.4670
STEEP
Suckling Hills
80
SWD
  60.1049
-149.4507
   0.0677
CREST
Seward (CREST station)
81
TABL
  60.4403
-141.1423
   2.0500
STEEP
Table Mountain
82
TNA
  65.5606
-167.9240
   0.0740
CREST
Tin City
83
TRAP
  62.3350
-150.2440
   0.1270
AKBB
Trapper Creek
84
TRF
  63.4510
-150.2872
   1.7170
AKBB
Thorofare Mountian
85
UNV
  53.8465
-166.5020
   0.0670
CREST
Unalaska Valley
86
VMT
  61.0832
-146.3673
   0.0600
PSBB
Aleyeska Marine Terminal
87
VRDI
  61.2280
-143.4524
   1.8800
STEEP
Verde Repeater
88
WRH
  64.4720
-148.0892
   0.3430
AKBB
Wood River Hill

In addition, AEIC operates and maintaines about 45 short period sites throughout the state,  the Fairbanks strong-motion network (10 sites), the Anchorages strong-motion network (44 sites),and 13 Strong Motion accelerometers (SMA) in the Prince William Sound region. The SMAs are designed with a two-year routine site visit schedule. The SP stations have varying maintenance schedules from two to five years or more depending upon power source, and equipment failures.

IRIS stations:

1
ADK
51.8837
-176.6844
0.1160
BB
Adak
2
COLA
64.8738
-147.8511
0.1940
BB
College Outpost
3
KDAK
57.7828
-152.5835
0.1520
BB
Kodiak Island

ANSS stations:

1
EGAK
64.7774
-141.1581
0.2966
BB
Eagle, Alaska
2
WRAK
56.4191
-132.3466
0.0809
BB
Wrangell Island, Alaska


WC/ATWC stations:

1
AKUT
  54.1352
-165.7719
   0.0019
BB
Akutan School
2
CHGN
  56.3014
-158.4142
   0.0016
SP
Chignik
3
CRAG
  55.4689
-133.1230
   0.0579
BB
Craig
4
IMA2
  66.0688
-153.6871
   1.3180
SP
Indian Mountain 2
5
MENT
  62.9380
-143.7194
   0.7020
SP
Mentasta
6
MID
  59.4278
-146.3389
   0.0370
SP
Middleton Island
7
OHAK
  57.2225
-153.2875
   0.0775
BB
Old Harbor, Kodiak
8
PMR
  61.5922
-149.1307
   0.1000
BB
Palmer Observatory
9
SDPT
  55.3493
-160.4766
   0.0074
BB
Sand Point
10
SIT
  57.0570
-135.3244
   0.0190
BB
Sitka Observatory
11
SKAG
  59.4601
-135.3290
   0.0134
BB
Skagway
12
SMY
  52.7308
 174.1030
   0.0580
BB
Shemya
13
SVW2
  61.0973
-155.5809
   0.4980
SP
Sparrevohn
14
TTA
  62.9300
-156.0219
   0.9140
SP
Tatalina
15
YKU2
  59.5121
-139.6710
   0.1010
SP
Yakutat


AVO networks:

1
Akutan
6 SP
5 BB
2
Aniakchak
6 SP

3
Augustine
9 SP
1 BB
4
Dutton
4 SP

5
Gareloi
6 SP

6
Great Sitkin
6 SP

7
Ilianma
6 SP

8
Kanaga
6 SP

9
Katmai
18 SP
2 BB
10
Korovin
7 SP

11
Little Sitkin
4 SP

12
Makushin
6 SP

13
Okmok
9 SP
4 BB
14
Pavlof
7 SP

15
Peulik
7 SP

16
Redoubt
7 SP

17
Semisopochnoi
6 SP
1 BB
18
Shishaldin
6 SP

19
Spurr
13 SP
3 BB
20
Tanaga
6 SP

21
Veniaminof
9 SP

22
Westdahl
6 SP

23
Wrangell
4 SP






Map of seismic stations - Alaska regional station map (interactive), current through March 2005


 



Updated: September 2009