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Networks (1 time spans)

US 1990-01-01 2599-12-31

Station Epochs (1 time spans)

LAO 2004-07-13 2599-12-31

US : LAO (2004-07-13 - 2599-12-31)

Network

Map DOI

Station

LAO

Map

Site Name

LASA Array, Montana, USA

Start

2004-07-13T00:00:00 (195)

End

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

Data Center

IRISDMC

Latitude

46.6885

Longitude

-106.2231

Elevation (m)

902.0

Instruments

2025-12-08T17:42:33 (342) - 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
2025-08-06T19:00:00 (218) - 2025-12-08T17:42:33 (342)
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
2024-07-19T15:50:00 (201) - 2025-08-06T19:00:00 (218)
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
2019-08-02T20:30:00 (214) - 2024-07-19T15:50:00 (201)
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
2011-05-06T15:29:00 (126) - 2019-08-02T20:30:00 (214)
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
2010-06-05T23:40:00 (156) - 2011-05-06T15:29:00 (126)
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
2009-06-11T22:15:00 (162) - 2010-06-05T23:40:00 (156)
Location Code	Instruments / Channels
00	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
20	Accelerometer HNE 80.0Hz IRISDMC \| HNN 80.0Hz IRISDMC \| HNZ 80.0Hz IRISDMC
2008-01-16T21:00:00 (016) - 2009-06-11T22:15:00 (162)
Location Code	Instruments / Channels
--	Velocity Sensor BHE 40.0Hz IRISDMC \| BHN 40.0Hz IRISDMC \| BHZ 40.0Hz IRISDMC HHE 100.0Hz IRISDMC \| HHN 100.0Hz IRISDMC \| HHZ 100.0Hz IRISDMC LHE 1.0Hz IRISDMC \| LHN 1.0Hz IRISDMC \| LHZ 1.0Hz IRISDMC
2005-04-13T20:45:00 (103) - 2008-01-16T21:00:00 (016)
Location Code	Instruments / Channels
--	Velocity Sensor BHE 40.0Hz IRISDMC \| BHN 40.0Hz IRISDMC \| BHZ 40.0Hz IRISDMC HHE 100.0Hz IRISDMC \| HHN 100.0Hz IRISDMC \| HHZ 100.0Hz IRISDMC LHE 1.0Hz IRISDMC \| LHN 1.0Hz IRISDMC \| LHZ 1.0Hz IRISDMC
2004-07-13T20:00:00 (195) - 2005-04-13T20:45:00 (103)
Location Code	Instruments / Channels
--	Velocity Sensor BHE 40.0Hz IRISDMC \| BHN 40.0Hz IRISDMC \| BHZ 40.0Hz IRISDMC HHE 100.0Hz IRISDMC \| HHN 100.0Hz IRISDMC \| HHZ 100.0Hz IRISDMC LHE 1.0Hz IRISDMC \| LHN 1.0Hz IRISDMC \| LHZ 1.0Hz IRISDMC

IRISDMC metadata changes:

Virtual network affiliations:

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