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Networks (1 time spans)

IU 1988-01-01 2599-12-31

Station Epochs (1 time spans)

MIDW 1999-10-23 2599-12-31

IU : MIDW (1999-10-23 - 2599-12-31)

Network

Map DOI

Station

MIDW

Map

Site Name

Midway Island, USA

Start

1999-10-23T00:00:00 (296)

End

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

Data Center

IRISDMC

Latitude

28.2154

Longitude

-177.3697

Elevation (m)

9.0

Instruments

2025-08-24T22:00:00 (236) - 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
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
40	Magnetometer BF1 10.0Hz IRISDMC \| BF2 10.0Hz IRISDMC \| BFZ 10.0Hz IRISDMC
2013-07-28T03:00:00 (209) - 2025-08-24T22:00:00 (236)
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
2013-07-28T03:00:00 (209) - 2599-12-31T23:59:59 (365)
Location Code	Instruments / Channels
30	Pressure LDO 1.0Hz IRISDMC
31	Pressure LDO 1.0Hz IRISDMC
2011-10-26T00:00:00 (299) - 2013-07-28T03:00:00 (209)
Location Code	Instruments / Channels
00	Streckeisen STS-2 High-gain 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 VH1 0.1Hz IRISDMC \| VH2 0.1Hz IRISDMC \| VHZ 0.1Hz IRISDMC \| VMU 0.1Hz IRISDMC \| VMV 0.1Hz IRISDMC \| VMW 0.1Hz IRISDMC
2009-07-30T00:00:00 (211) - 2011-10-26T00:00:00 (299)
Location Code	Instruments / Channels
00	Streckeisen STS-2 High-gain BHE 20.0Hz IRISDMC \| BHN 20.0Hz IRISDMC \| BHZ 20.0Hz 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
2008-02-04T22:04:00 (035) - 2009-07-30T00:00:00 (211)
Location Code	Instruments / Channels
00	Streckeisen STS-2 High-gain BHE 20.0Hz IRISDMC \| BHN 20.0Hz IRISDMC \| BHZ 20.0Hz 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
2005-06-09T02:00:00 (160) - 2008-02-04T22:04:00 (035)
Location Code	Instruments / Channels
00	Streckeisen STS-2 High-gain BHE 20.0Hz IRISDMC \| BHN 20.0Hz IRISDMC \| BHZ 20.0Hz 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
2003-12-17T21:20:00 (351) - 2009-07-30T00:00:00 (211)
Location Code	Instruments / Channels
--	Streckeisen STS-2 High-gain BC0 40.0Hz IRISDMC
2003-12-17T21:20:00 (351) - 2005-06-09T02:00:00 (160)
Location Code	Instruments / Channels
00	Streckeisen STS-2 High-gain BHE 20.0Hz IRISDMC \| BHN 20.0Hz IRISDMC \| BHZ 20.0Hz 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
2003-12-17T21:20:00 (351) - 2004-03-26T00:00:00 (086)
Location Code	Instruments / Channels
01	Streckeisen STS-2 High-gain BHE 40.0Hz IRISDMC \| BHN 40.0Hz IRISDMC \| BHZ 40.0Hz IRISDMC
1999-10-23T00:00:00 (296) - 2003-12-17T21:20:00 (351)
Location Code	Instruments / Channels
--	Geotech KS-54000 Borehole Seismometer BC0 20.0Hz IRISDMC
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
1999-10-23T00:00:00 (296) - 2009-07-30T00:00:00 (211)
Location Code	Instruments / Channels
00	Quanterra DA temperature monitor VK1 0.1Hz IRISDMC Quanterra DA voltage monitor VE1 0.1Hz IRISDMC

IRISDMC metadata changes:

Virtual network affiliations:

Name	Description
_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
_HAWAII	Seismic Stations Deployed in the Hawaiian Island Chain
_HAWAII	Seismic Stations Deployed in the Hawaiian Island Chain
_HAWAII	Seismic Stations Deployed in the Hawaiian Island Chain

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