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Networks (1 time spans)

US 1990-01-01 2599-12-31

Station Epochs (1 time spans)

GLMI 2006-08-10 2599-12-31

US : GLMI (2006-08-10 - 2599-12-31)

Network

Map DOI

Station

GLMI

Map

Site Name

Grayling, Michigan, USA

Start

2006-08-10T17:00:00 (222)

End

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

Data Center

IRISDMC

Latitude

44.8245

Longitude

-84.6175

Elevation (m)

387.0

Instruments

2026-07-22T17:00:00 (203) - 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 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 200.0Hz IRISDMC \| HN2 200.0Hz IRISDMC \| HNZ 200.0Hz IRISDMC LN1 1.0Hz IRISDMC \| LN2 1.0Hz IRISDMC \| LNZ 1.0Hz IRISDMC
2024-09-09T15:30:00 (253) - 2026-07-22T17:00:00 (203)
Location Code	Instruments / Channels
00	Mass Position Seismometer VMU 0.1Hz IRISDMC \| VMV 0.1Hz IRISDMC \| VMW 0.1Hz IRISDMC Velocity Sensor 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 200.0Hz IRISDMC \| HN2 200.0Hz IRISDMC \| HNZ 200.0Hz IRISDMC LN1 1.0Hz IRISDMC \| LN2 1.0Hz IRISDMC \| LNZ 1.0Hz IRISDMC
2020-09-23T15:05:00 (267) - 2024-09-09T15:30:00 (253)
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 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 200.0Hz IRISDMC \| HN2 200.0Hz IRISDMC \| HNZ 200.0Hz IRISDMC LN1 1.0Hz IRISDMC \| LN2 1.0Hz IRISDMC \| LNZ 1.0Hz IRISDMC
2019-04-24T14:30:00 (114) - 2020-09-23T15:05:00 (267)
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 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 200.0Hz IRISDMC \| HN2 200.0Hz IRISDMC \| HNZ 200.0Hz IRISDMC LN1 1.0Hz IRISDMC \| LN2 1.0Hz IRISDMC \| LNZ 1.0Hz IRISDMC
2018-05-19T00:00:00 (139) - 2019-04-24T14:30:00 (114)
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 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 200.0Hz IRISDMC \| HN2 200.0Hz IRISDMC \| HNZ 200.0Hz IRISDMC LN1 1.0Hz IRISDMC \| LN2 1.0Hz IRISDMC \| LNZ 1.0Hz IRISDMC
2011-07-13T15:28:40 (194) - 2018-05-19T00:00:00 (139)
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 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 200.0Hz IRISDMC \| HN2 200.0Hz IRISDMC \| HNZ 200.0Hz IRISDMC LN1 1.0Hz IRISDMC \| LN2 1.0Hz IRISDMC \| LNZ 1.0Hz IRISDMC
2006-08-10T17:00:00 (222) - 2011-07-13T15:28:40 (194)
Location Code	Instruments / Channels
--	Accelerometer HLE 100.0Hz IRISDMC \| HLN 100.0Hz IRISDMC \| HLZ 100.0Hz IRISDMC Velocity Sensor BHE 40.0Hz IRISDMC \| BHN 40.0Hz IRISDMC \| BHZ 40.0Hz IRISDMC LHE 1.0Hz IRISDMC \| LHN 1.0Hz IRISDMC \| LHZ 1.0Hz IRISDMC

IRISDMC metadata changes:

Virtual network affiliations:

Name	Description
_FDSN-ALL	All FDSN Member Network Stations Available at IRIS DMC
_US-BB	USArray Backbone (EarthScope) stations
_US-BB+A	USArray Backbone stations + AFTAC array elements
_US-REF	USArray Reference Network stations
_US-ALL	All USArray (EarthScope) stations
_US-ALL	All USArray (EarthScope) stations
_CEUSN	Central Eastern United States Network
_REALTIME	Stations collected and served in real time at the DMC
_US-REGIONAL	US Regional Networks
_US-TA	USArray Transportable Array (EarthScope) stations
_ANSS-BB	Advanced National Seismic System Backbone Stations