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Networks (1 time spans)

IU 1988-01-01 2599-12-31

Station Epochs (1 time spans)

JOHN 1998-07-24 2599-12-31

IU : JOHN (1998-07-24 - 2599-12-31)

Network

Map DOI

Station

JOHN

Map

Site Name

Johnston Island, USA

Start

1998-07-24T00:00:00 (205)

End

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

Data Center

IRISDMC

Latitude

16.7329

Longitude

-169.5292

Elevation (m)

2.0

Instruments

2021-05-29T00:00:00 (149) - 2599-12-31T23:59:59 (365)
Location Code	Instruments / Channels
00	Streckeisen STS-2 Standard-gain BH1 40.0Hz IRISDMC \| BH2 40.0Hz IRISDMC \| BHZ 40.0Hz 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	Kinemetrics FBA ES-T EpiSensor 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
2012-10-29T00:00:00 (303) - 2599-12-31T23:59:59 (365)
Location Code	Instruments / Channels
00	Streckeisen STS-2 Standard-gain VMU 0.1Hz IRISDMC \| VMV 0.1Hz IRISDMC \| VMW 0.1Hz IRISDMC
31	CI/PAS pressure sensor LDO 1.0Hz IRISDMC
2012-10-29T00:00:00 (303) - 2022-12-03T00:00:00 (337)
Location Code	Instruments / Channels
10	Trillium 240 broad band VMU 0.1Hz IRISDMC \| VMV 0.1Hz IRISDMC \| VMW 0.1Hz IRISDMC
2010-11-06T06:10:00 (310) - 2022-12-03T00:00:00 (337)
Location Code	Instruments / Channels
10	Trillium 240 broad band 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
2010-11-05T18:27:59 (309) - 2021-05-29T00:00:00 (149)
Location Code	Instruments / Channels
00	Streckeisen STS-2 Standard-gain BH1 40.0Hz IRISDMC \| BH2 40.0Hz IRISDMC \| BHZ 40.0Hz 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
2010-08-09T00:00:00 (221) - 2010-11-05T18:27:59 (309)
Location Code	Instruments / Channels
00	Streckeisen STS-2 Standard-gain BH1 40.0Hz IRISDMC \| BH2 40.0Hz IRISDMC \| BHZ 40.0Hz 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
2010-08-09T00:00:00 (221) - 2010-11-06T06:10:00 (310)
Location Code	Instruments / Channels
10	Trillium 240 broad band 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
2010-08-09T00:00:00 (221) - 2021-05-29T00:00:00 (149)
Location Code	Instruments / Channels
20	Kinemetrics FBA ES-T EpiSensor 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
2010-08-09T00:00:00 (221) - 2599-12-31T23:59:59 (365)
Location Code	Instruments / Channels
30	lower quality chip sensor in Setra box LDO 1.0Hz IRISDMC
2004-05-07T18:13:00 (128) - 2010-08-09T00:00:00 (221)
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
2004-05-07T18:09:00 (128) - 2010-08-09T00:00:00 (221)
Location Code	Instruments / Channels
10	Streckeisen STS-2 High-gain BHE 40.0Hz IRISDMC \| BHN 40.0Hz IRISDMC \| BHZ 40.0Hz IRISDMC HHE 80.0Hz IRISDMC \| HHN 80.0Hz IRISDMC \| HHZ 80.0Hz IRISDMC LHE 1.0Hz IRISDMC \| LHN 1.0Hz IRISDMC \| LHZ 1.0Hz IRISDMC VHE 0.1Hz IRISDMC \| VHN 0.1Hz IRISDMC \| VHZ 0.1Hz IRISDMC
2004-05-06T22:50:00 (127) - 2010-08-09T00:00:00 (221)
Location Code	Instruments / Channels
00	Guralp CMG3-T Seismometer (borehole) BH1 20.0Hz IRISDMC \| BH2 20.0Hz IRISDMC \| BHZ 20.0Hz IRISDMC HH1 80.0Hz IRISDMC \| HH2 80.0Hz IRISDMC \| HHZ 80.0Hz 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
01	Guralp CMG3-T Seismometer (borehole) BH1 40.0Hz IRISDMC \| BH2 40.0Hz IRISDMC \| BHZ 40.0Hz IRISDMC
2003-11-06T19:51:00 (310) - 2004-05-07T18:13:00 (128)
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
2003-10-31T00:00:00 (304) - 2005-07-03T00:00:00 (184)
Location Code	Instruments / Channels
00	All Weather, Inc. microanemometer LWS 1.0Hz IRISDMC
2003-10-30T00:00:00 (303) - 2004-05-06T22:50:00 (127)
Location Code	Instruments / Channels
00	Guralp CMG3-T Seismometer (borehole) BH1 20.0Hz IRISDMC \| BH2 20.0Hz IRISDMC \| BHZ 20.0Hz IRISDMC HH1 80.0Hz IRISDMC \| HH2 80.0Hz IRISDMC \| HHZ 80.0Hz 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
01	Guralp CMG3-T Seismometer (borehole) BH1 40.0Hz IRISDMC \| BH2 40.0Hz IRISDMC \| BHZ 40.0Hz IRISDMC
2003-10-30T00:00:00 (303) - 2010-08-09T00:00:00 (221)
Location Code	Instruments / Channels
00	Davis Instruments solar radiation sensor LUX 1.0Hz IRISDMC
2002-02-25T00:00:00 (056) - 2003-11-06T19:51:00 (310)
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
1999-05-04T06:15:00 (124) - 2003-10-30T00:00:00 (303)
Location Code	Instruments / Channels
00	Geotech KS-54000 Borehole Seismometer BH1 20.0Hz IRISDMC \| BH2 20.0Hz IRISDMC \| BHZ 20.0Hz IRISDMC LH1 1.0Hz IRISDMC \| LH2 1.0Hz IRISDMC \| LHZ 1.0Hz IRISDMC UH1 0.01Hz IRISDMC \| UH2 0.01Hz IRISDMC \| UHZ 0.01Hz IRISDMC VH1 0.1Hz IRISDMC \| VH2 0.1Hz IRISDMC \| VHZ 0.1Hz IRISDMC
10	Guralp CMG3-T Seismometer (borehole) BH1 40.0Hz IRISDMC \| BH2 40.0Hz IRISDMC \| BHZ 40.0Hz IRISDMC HH1 80.0Hz IRISDMC \| HH2 80.0Hz IRISDMC \| HHZ 80.0Hz IRISDMC LH1 1.0Hz IRISDMC \| LH2 1.0Hz IRISDMC \| LHZ 1.0Hz IRISDMC
1999-05-04T06:15:00 (124) - 2010-08-09T00:00:00 (221)
Location Code	Instruments / Channels
00	Quanterra DA temperature monitor VK1 0.1Hz IRISDMC Quanterra DA voltage monitor VE1 0.1Hz IRISDMC
1999-05-04T06:15:00 (124) - 2002-02-25T00:00:00 (056)
Location Code	Instruments / Channels
20	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
1998-07-24T00:00:00 (205) - 1999-05-04T06:15:00 (124)
Location Code	Instruments / Channels
--	Geotech KS-54000 Borehole Seismometer BH1 20.0Hz IRISDMC \| BH2 20.0Hz IRISDMC \| BHZ 20.0Hz IRISDMC LH1 1.0Hz IRISDMC \| LH2 1.0Hz IRISDMC \| LHZ 1.0Hz IRISDMC UH1 0.01Hz IRISDMC \| UH2 0.01Hz IRISDMC \| UHZ 0.01Hz IRISDMC VH1 0.1Hz IRISDMC \| VH2 0.1Hz IRISDMC \| VHZ 0.1Hz IRISDMC Guralp CMG3-T Seismometer (borehole) HHE 80.0Hz IRISDMC \| HHN 80.0Hz IRISDMC \| HHZ 80.0Hz IRISDMC SCI 40.0Hz IRISDMC \| SH1 40.0Hz IRISDMC \| SH2 40.0Hz IRISDMC \| SHZ 40.0Hz IRISDMC 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 VE1 0.1Hz IRISDMC

IRISDMC metadata changes:

Virtual network affiliations:

Name	Description
_GSN	Global Seismographic Network stations and arrays
_HAWAII	Seismic Stations Deployed in the Hawaiian Island Chain
_GSN-BROADBAND	Global Seismographic Network broadband stations
_FDSN	FDSN network stations
_REALTIME	Stations collected and served in real time at the DMC
_HAWAII	Seismic Stations Deployed in the Hawaiian Island Chain
_FDSN-ALL	All FDSN Member Network Stations Available at IRIS DMC

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