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IU 1988-01-01 2599-12-31

Station Epochs (1 time spans)

ADK 1993-09-21 2599-12-31

IU : ADK (1993-09-21 - 2599-12-31)

Network

Map DOI

Station

ADK

Map

Site Name

Adak, Aleutian Islands, Alaska

Start

1993-09-21T00:00:00 (264)

End

2599-12-31T23:59:59 (365)

Data Center

IRISDMC

Latitude

51.8823

Longitude

-176.6842

Elevation (m)

130.0

Instruments

2026-07-28T19:00:00 (209) - 2599-12-31T23:59:59 (365)
Location Code	Instruments / Channels
10	Mass Position Seismometer VMU 0.1Hz IRISDMC \| VMV 0.1Hz IRISDMC \| VMW 0.1Hz IRISDMC Velocity Sensor BH1 40.0Hz IRISDMC \| BH2 40.0Hz IRISDMC \| BHZ 40.0Hz IRISDMC HH1 100.0Hz IRISDMC \| HH2 100.0Hz IRISDMC \| HHZ 100.0Hz IRISDMC LH1 1.0Hz IRISDMC \| LH2 1.0Hz IRISDMC \| LHZ 1.0Hz IRISDMC VH1 0.1Hz IRISDMC \| VH2 0.1Hz IRISDMC \| VHZ 0.1Hz IRISDMC
40	Magnetometer BF1 10.0Hz IRISDMC \| BF2 10.0Hz IRISDMC \| BFZ 10.0Hz IRISDMC
2026-07-26T03:30:00 (207) - 2599-12-31T23:59:59 (365)
Location Code	Instruments / Channels
00	Mass Position Seismometer VMU 0.1Hz IRISDMC \| VMV 0.1Hz IRISDMC \| VMW 0.1Hz IRISDMC Velocity Sensor BH1 40.0Hz IRISDMC \| BH2 40.0Hz IRISDMC \| BHZ 40.0Hz IRISDMC HH1 100.0Hz IRISDMC \| HH2 100.0Hz IRISDMC \| HHZ 100.0Hz IRISDMC LH1 1.0Hz IRISDMC \| LH2 1.0Hz IRISDMC \| LHZ 1.0Hz IRISDMC VH1 0.1Hz IRISDMC \| VH2 0.1Hz IRISDMC \| VHZ 0.1Hz IRISDMC
2021-10-21T00:00:00 (294) - 2026-07-26T03:30:00 (207)
Location Code	Instruments / Channels
00	Mass Position Seismometer VMU 0.1Hz IRISDMC \| VMV 0.1Hz IRISDMC \| VMW 0.1Hz IRISDMC Velocity Sensor BH1 40.0Hz IRISDMC \| BH2 40.0Hz IRISDMC \| BHZ 40.0Hz IRISDMC HH1 100.0Hz IRISDMC \| HH2 100.0Hz IRISDMC \| HHZ 100.0Hz IRISDMC LH1 1.0Hz IRISDMC \| LH2 1.0Hz IRISDMC \| LHZ 1.0Hz IRISDMC VH1 0.1Hz IRISDMC \| VH2 0.1Hz IRISDMC \| VHZ 0.1Hz IRISDMC
2021-10-21T00:00:00 (294) - 2599-12-31T23:59:59 (365)
Location Code	Instruments / Channels
20	Accelerometer HN1 100.0Hz IRISDMC \| HN2 100.0Hz IRISDMC \| HNZ 100.0Hz IRISDMC LN1 1.0Hz IRISDMC \| LN2 1.0Hz IRISDMC \| LNZ 1.0Hz IRISDMC
2019-04-18T00:00:00 (108) - 2021-10-21T00:00:00 (294)
Location Code	Instruments / Channels
00	Mass Position Seismometer VMU 0.1Hz IRISDMC \| VMV 0.1Hz IRISDMC \| VMW 0.1Hz IRISDMC Velocity Sensor BH1 40.0Hz IRISDMC \| BH2 40.0Hz IRISDMC \| BHZ 40.0Hz IRISDMC HH1 100.0Hz IRISDMC \| HH2 100.0Hz IRISDMC \| HHZ 100.0Hz IRISDMC LH1 1.0Hz IRISDMC \| LH2 1.0Hz IRISDMC \| LHZ 1.0Hz IRISDMC VH1 0.1Hz IRISDMC \| VH2 0.1Hz IRISDMC \| VHZ 0.1Hz IRISDMC
20	Accelerometer HN1 100.0Hz IRISDMC \| HN2 100.0Hz IRISDMC \| HNZ 100.0Hz IRISDMC LN1 1.0Hz IRISDMC \| LN2 1.0Hz IRISDMC \| LNZ 1.0Hz IRISDMC
2019-04-18T00:00:00 (108) - 2026-07-28T19:00:00 (209)
Location Code	Instruments / Channels
10	Mass Position Seismometer VMU 0.1Hz IRISDMC \| VMV 0.1Hz IRISDMC \| VMW 0.1Hz IRISDMC Velocity Sensor BH1 40.0Hz IRISDMC \| BH2 40.0Hz IRISDMC \| BHZ 40.0Hz IRISDMC HH1 100.0Hz IRISDMC \| HH2 100.0Hz IRISDMC \| HHZ 100.0Hz IRISDMC LH1 1.0Hz IRISDMC \| LH2 1.0Hz IRISDMC \| LHZ 1.0Hz IRISDMC VH1 0.1Hz IRISDMC \| VH2 0.1Hz IRISDMC \| VHZ 0.1Hz IRISDMC
60	Mass Position Seismometer VM1 0.1Hz IRISDMC \| VM2 0.1Hz IRISDMC \| VMZ 0.1Hz IRISDMC UNKNOWN VY1 0.1Hz IRISDMC \| VY2 0.1Hz IRISDMC \| VYZ 0.1Hz IRISDMC Velocity Sensor BH1 20.0Hz IRISDMC \| BH2 20.0Hz IRISDMC \| BHZ 20.0Hz IRISDMC LH1 1.0Hz IRISDMC \| LH2 1.0Hz IRISDMC \| LHZ 1.0Hz IRISDMC VH1 0.1Hz IRISDMC \| VH2 0.1Hz IRISDMC \| VHZ 0.1Hz IRISDMC
2018-09-07T00:00:00 (250) - 2599-12-31T23:59:59 (365)
Location Code	Instruments / Channels
30	Pressure LDO 1.0Hz IRISDMC
31	Pressure LDO 1.0Hz IRISDMC
32	Pressure BDF 40.0Hz IRISDMC
50	Electronic Test Point LES 1.0Hz IRISDMC Humidity LIO 1.0Hz IRISDMC Pressure LDO 1.0Hz IRISDMC Rainfall LRH 1.0Hz IRISDMC \| LRI 1.0Hz IRISDMC Temperature LKO 1.0Hz IRISDMC Wind LWD 1.0Hz IRISDMC \| LWS 1.0Hz IRISDMC
2018-09-06T00:00:00 (249) - 2018-09-07T00:00:00 (250)
Location Code	Instruments / Channels
30	Pressure LDO 1.0Hz IRISDMC
31	Pressure LDO 1.0Hz IRISDMC
32	Pressure BDF 40.0Hz IRISDMC
2018-09-05T02:00:00 (248) - 2019-04-18T00:00:00 (108)
Location Code	Instruments / Channels
00	Mass Position Seismometer VMU 0.1Hz IRISDMC \| VMV 0.1Hz IRISDMC \| VMW 0.1Hz IRISDMC Velocity Sensor BH1 40.0Hz IRISDMC \| BH2 40.0Hz IRISDMC \| BHZ 40.0Hz IRISDMC HH1 100.0Hz IRISDMC \| HH2 100.0Hz IRISDMC \| HHZ 100.0Hz IRISDMC LH1 1.0Hz IRISDMC \| LH2 1.0Hz IRISDMC \| LHZ 1.0Hz IRISDMC VH1 0.1Hz IRISDMC \| VH2 0.1Hz IRISDMC \| VHZ 0.1Hz IRISDMC
10	Mass Position Seismometer VMU 0.1Hz IRISDMC \| VMV 0.1Hz IRISDMC \| VMW 0.1Hz IRISDMC Velocity Sensor BH1 40.0Hz IRISDMC \| BH2 40.0Hz IRISDMC \| BHZ 40.0Hz IRISDMC HH1 100.0Hz IRISDMC \| HH2 100.0Hz IRISDMC \| HHZ 100.0Hz IRISDMC LH1 1.0Hz IRISDMC \| LH2 1.0Hz IRISDMC \| LHZ 1.0Hz IRISDMC VH1 0.1Hz IRISDMC \| VH2 0.1Hz IRISDMC \| VHZ 0.1Hz IRISDMC
20	Accelerometer HN1 100.0Hz IRISDMC \| HN2 100.0Hz IRISDMC \| HNZ 100.0Hz IRISDMC LN1 1.0Hz IRISDMC \| LN2 1.0Hz IRISDMC \| LNZ 1.0Hz IRISDMC
60	Mass Position Seismometer VM1 0.1Hz IRISDMC \| VM2 0.1Hz IRISDMC \| VMZ 0.1Hz IRISDMC UNKNOWN VY1 0.1Hz IRISDMC \| VY2 0.1Hz IRISDMC \| VYZ 0.1Hz IRISDMC Velocity Sensor BH1 20.0Hz IRISDMC \| BH2 20.0Hz IRISDMC \| BHZ 20.0Hz IRISDMC LH1 1.0Hz IRISDMC \| LH2 1.0Hz IRISDMC \| LHZ 1.0Hz IRISDMC VH1 0.1Hz IRISDMC \| VH2 0.1Hz IRISDMC \| VHZ 0.1Hz IRISDMC
2012-10-26T00:00:00 (300) - 2018-09-05T02:00:00 (248)
Location Code	Instruments / Channels
10	Mass Position Seismometer VMU 0.1Hz IRISDMC \| VMV 0.1Hz IRISDMC \| VMW 0.1Hz IRISDMC Velocity Sensor BH1 40.0Hz IRISDMC \| BH2 40.0Hz IRISDMC \| BHZ 40.0Hz IRISDMC HH1 100.0Hz IRISDMC \| HH2 100.0Hz IRISDMC \| HHZ 100.0Hz IRISDMC LH1 1.0Hz IRISDMC \| LH2 1.0Hz IRISDMC \| LHZ 1.0Hz IRISDMC VH1 0.1Hz IRISDMC \| VH2 0.1Hz IRISDMC \| VHZ 0.1Hz IRISDMC
2012-10-26T00:00:00 (300) - 2018-09-06T00:00:00 (249)
Location Code	Instruments / Channels
30	Pressure LDO 1.0Hz IRISDMC
31	Pressure LDO 1.0Hz IRISDMC
2011-09-21T00:00:00 (264) - 2018-09-05T02:00:00 (248)
Location Code	Instruments / Channels
00	Mass Position Seismometer VM1 0.1Hz IRISDMC \| VM2 0.1Hz IRISDMC \| VMZ 0.1Hz IRISDMC UNKNOWN VY1 0.1Hz IRISDMC \| VY2 0.1Hz IRISDMC \| VYZ 0.1Hz IRISDMC Velocity Sensor BH1 20.0Hz IRISDMC \| BH2 20.0Hz IRISDMC \| BHZ 20.0Hz IRISDMC LH1 1.0Hz IRISDMC \| LH2 1.0Hz IRISDMC \| LHZ 1.0Hz IRISDMC VH1 0.1Hz IRISDMC \| VH2 0.1Hz IRISDMC \| VHZ 0.1Hz IRISDMC
20	Accelerometer HN1 100.0Hz IRISDMC \| HN2 100.0Hz IRISDMC \| HNZ 100.0Hz IRISDMC LN1 1.0Hz IRISDMC \| LN2 1.0Hz IRISDMC \| LNZ 1.0Hz IRISDMC
2011-09-21T00:00:00 (264) - 2012-10-26T00:00:00 (300)
Location Code	Instruments / Channels
30	Pressure LDO 1.0Hz IRISDMC
2009-07-19T00:00:00 (200) - 2011-09-21T00:00:00 (264)
Location Code	Instruments / Channels
00	Mass Position Seismometer VM1 0.1Hz IRISDMC \| VM2 0.1Hz IRISDMC \| VMZ 0.1Hz IRISDMC Velocity Sensor BH1 20.0Hz IRISDMC \| BH2 20.0Hz IRISDMC \| BHZ 20.0Hz IRISDMC LH1 1.0Hz IRISDMC \| LH2 1.0Hz IRISDMC \| LHZ 1.0Hz IRISDMC VH1 0.1Hz IRISDMC \| VH2 0.1Hz IRISDMC \| VHZ 0.1Hz IRISDMC
20	Accelerometer HN1 100.0Hz IRISDMC \| HN2 100.0Hz IRISDMC \| HNZ 100.0Hz IRISDMC LN1 1.0Hz IRISDMC \| LN2 1.0Hz IRISDMC \| LNZ 1.0Hz IRISDMC
2009-07-19T00:00:00 (200) - 2012-10-26T00:00:00 (300)
Location Code	Instruments / Channels
10	Velocity Sensor BH1 40.0Hz IRISDMC \| BH2 40.0Hz IRISDMC \| BHZ 40.0Hz IRISDMC HH1 100.0Hz IRISDMC \| HH2 100.0Hz IRISDMC \| HHZ 100.0Hz IRISDMC LH1 1.0Hz IRISDMC \| LH2 1.0Hz IRISDMC \| LHZ 1.0Hz IRISDMC VH1 0.1Hz IRISDMC \| VH2 0.1Hz IRISDMC \| VHZ 0.1Hz IRISDMC
2006-12-04T00:00:00 (338) - 2009-02-14T00:00:00 (045)
Location Code	Instruments / Channels
20	Kinemetrics FBA-23 Low-Gain Sensor HNE 80.0Hz IRISDMC \| HNN 80.0Hz IRISDMC \| HNZ 80.0Hz IRISDMC LNE 1.0Hz IRISDMC \| LNN 1.0Hz IRISDMC \| LNZ 1.0Hz IRISDMC
2003-05-23T08:40:00 (143) - 2009-02-14T00:00:00 (045)
Location Code	Instruments / Channels
00	Streckeisen STS-1H/VBB Seismometer BHE 20.0Hz IRISDMC \| BHN 20.0Hz IRISDMC LHE 1.0Hz IRISDMC \| LHN 1.0Hz IRISDMC VHE 0.1Hz IRISDMC \| VHN 0.1Hz IRISDMC Streckeisen STS-1V/VBB Seismometer BHZ 20.0Hz IRISDMC LHZ 1.0Hz IRISDMC VHZ 0.1Hz IRISDMC
2001-11-08T03:25:00 (312) - 2006-12-04T00:00:00 (338)
Location Code	Instruments / Channels
10	Kinemetrics FBA-23 Low-Gain Sensor HNE 80.0Hz IRISDMC \| HNN 80.0Hz IRISDMC \| HNZ 80.0Hz IRISDMC LNE 1.0Hz IRISDMC \| LNN 1.0Hz IRISDMC \| LNZ 1.0Hz IRISDMC
1999-02-11T00:00:00 (042) - 2003-05-23T08:40:00 (143)
Location Code	Instruments / Channels
00	Streckeisen STS-1H/VBB Seismometer BHE 20.0Hz IRISDMC \| BHN 20.0Hz IRISDMC LHE 1.0Hz IRISDMC \| LHN 1.0Hz IRISDMC VHE 0.1Hz IRISDMC \| VHN 0.1Hz IRISDMC Streckeisen STS-1V/VBB Seismometer BHZ 20.0Hz IRISDMC LHZ 1.0Hz IRISDMC VHZ 0.1Hz IRISDMC
1999-02-11T00:00:00 (042) - 2004-10-29T00:00:00 (303)
Location Code	Instruments / Channels
00	Streckeisen STS-1H/VBB Seismometer UHE 0.01Hz IRISDMC \| UHN 0.01Hz IRISDMC Streckeisen STS-1V/VBB Seismometer UHZ 0.01Hz IRISDMC
1999-02-11T00:00:00 (042) - 2009-02-14T00:00:00 (045)
Location Code	Instruments / Channels
00	Quanterra DA temperature monitor VK1 0.1Hz IRISDMC Quanterra DA voltage monitor VE1 0.1Hz IRISDMC Streckeisen STS-1H/VBB Seismometer VME 0.1Hz IRISDMC \| VMN 0.1Hz IRISDMC Streckeisen STS-1V/VBB Seismometer VMZ 0.1Hz IRISDMC
1999-02-11T00:00:00 (042) - 2001-11-08T14:38:00 (312)
Location Code	Instruments / Channels
10	Kinemetrics FBA-23 Low-Gain Sensor HLE 80.0Hz IRISDMC \| HLN 80.0Hz IRISDMC \| HLZ 80.0Hz IRISDMC LLE 1.0Hz IRISDMC \| LLN 1.0Hz IRISDMC \| LLZ 1.0Hz IRISDMC
1995-08-20T00:00:00 (232) - 2009-02-14T00:00:00 (045)
Location Code	Instruments / Channels
--	Streckeisen STS-1/VBB Seismometer BC0 20.0Hz IRISDMC
00	Streckeisen STS-1V/VBB Seismometer BC0 20.0Hz IRISDMC
1995-08-20T00:00:00 (232) - 1999-02-11T00:00:00 (042)
Location Code	Instruments / Channels
--	Kinemetrics FBA-23 Low-Gain Sensor HLE 80.0Hz IRISDMC \| HLN 80.0Hz IRISDMC \| HLZ 80.0Hz IRISDMC LLE 1.0Hz IRISDMC \| LLN 1.0Hz IRISDMC \| LLZ 1.0Hz IRISDMC Quanterra DA temperature monitor VK1 0.1Hz IRISDMC Quanterra DA voltage monitor BE2 20.0Hz IRISDMC \| BE3 20.0Hz IRISDMC \| BE4 20.0Hz IRISDMC VE1 0.1Hz IRISDMC Streckeisen STS-1/VBB Seismometer BCI 20.0Hz IRISDMC Streckeisen STS-1H/VBB Seismometer BHE 20.0Hz IRISDMC \| BHN 20.0Hz IRISDMC LHE 1.0Hz IRISDMC \| LHN 1.0Hz IRISDMC UHE 0.01Hz IRISDMC \| UHN 0.01Hz IRISDMC VHE 0.1Hz IRISDMC \| VHN 0.1Hz IRISDMC \| VME 0.1Hz IRISDMC \| VMN 0.1Hz IRISDMC Streckeisen STS-1V/VBB Seismometer BCZ 20.0Hz IRISDMC \| BHZ 20.0Hz IRISDMC LHZ 1.0Hz IRISDMC UHZ 0.01Hz IRISDMC VHZ 0.1Hz IRISDMC \| VMZ 0.1Hz IRISDMC
1994-05-26T00:00:00 (146) - 1995-08-20T00:00:00 (232)
Location Code	Instruments / Channels
--	Kinemetrics FBA-23 Low-Gain Sensor HLE 80.0Hz IRISDMC \| HLN 80.0Hz IRISDMC \| HLZ 80.0Hz IRISDMC LLE 1.0Hz IRISDMC \| LLN 1.0Hz IRISDMC \| LLZ 1.0Hz IRISDMC
1993-09-21T00:00:00 (264) - 1995-08-20T00:00:00 (232)
Location Code	Instruments / Channels
--	Quanterra DA temperature monitor VK1 0.1Hz IRISDMC \| VKI 0.1Hz IRISDMC Quanterra DA voltage monitor VE1 0.1Hz IRISDMC Streckeisen STS-1/VBB Seismometer BCI 20.0Hz IRISDMC Streckeisen STS-1H/VBB Seismometer BHE 20.0Hz IRISDMC \| BHN 20.0Hz IRISDMC LHE 1.0Hz IRISDMC \| LHN 1.0Hz IRISDMC UHE 0.01Hz IRISDMC \| UHN 0.01Hz IRISDMC VHE 0.1Hz IRISDMC \| VHN 0.1Hz IRISDMC \| VME 0.1Hz IRISDMC \| VMN 0.1Hz IRISDMC Streckeisen STS-1V/VBB Seismometer BCZ 20.0Hz IRISDMC \| BHZ 20.0Hz IRISDMC LHZ 1.0Hz IRISDMC UHZ 0.01Hz IRISDMC VHZ 0.1Hz IRISDMC \| VMZ 0.1Hz IRISDMC
1993-09-21T00:00:00 (264) - 1994-05-26T00:00:00 (146)
Location Code	Instruments / Channels
--	Kinemetrics FBA-23 Low-Gain Sensor ELE 80.0Hz IRISDMC \| ELN 80.0Hz IRISDMC \| ELZ 80.0Hz IRISDMC

IRISDMC metadata changes:

Virtual network affiliations:

Name	Description
_FDSN	FDSN network stations
_FDSN-ALL	All FDSN Member Network Stations Available at IRIS DMC
_GSN	Global Seismographic Network stations and arrays
_GSN-BROADBAND	Global Seismographic Network broadband stations
_ANSS-BB	Advanced National Seismic System Backbone Stations
_STS-1	Stations Operating STS-1 sensors
_US-ALL	All USArray (EarthScope) stations
_US-REF	USArray Reference Network stations

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