MetaData Aggregator
Channel Summary
The previous service providing data availability and restriction information
has been retired. A replacement service is under development but a timeline
for release is not yet available.
Data availability and restrictions
Network
US
Station
LAO
Location
00
Channel
VMU
Instrument
Mass Position Seismometer
Start
2025-12-08T17:42:33 (342)
End
2599-12-31T23:59:59 (365)
Data Center
Latitude
46.6885
Longitude
-106.2231
Elevation (m)
902.0
Depth (m)
0.0
(Local depth or overburden)
Azimuth
0.0
(SEED convention: Clockwise from north, Z=0, reversed=0)
Dip
0.0
(SEED convention: From horizontal, Z=-90, reversed=90)
Sample Rate (Hz)
0.1
Units
Sensitivity
@
Hz (SEED Stage 0)
IRISDMC Response
(RESP
SAC PZs
XML )
IRISDMC metadata changes:
View 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-REGIONAL US Regional Networks
_US-ALL All USArray (EarthScope) stations
_US-ALL All USArray (EarthScope) stations
_ANSS-BB Advanced National Seismic System Backbone Stations
_US-TA USArray Transportable Array (EarthScope) stations
_US-REF USArray Reference Network stations
Network
US
Station
LAO
Location
00
Channel
VMU
Instrument
Mass Position Seismometer
Start
2025-08-06T19:00:00 (218)
End
2025-12-08T17:42:33 (342)
Data Center
Latitude
46.6885
Longitude
-106.2231
Elevation (m)
902.0
Depth (m)
0.0
(Local depth or overburden)
Azimuth
0.0
(SEED convention: Clockwise from north, Z=0, reversed=0)
Dip
0.0
(SEED convention: From horizontal, Z=-90, reversed=90)
Sample Rate (Hz)
0.1
Units
Sensitivity
@
Hz (SEED Stage 0)
IRISDMC Response
(RESP
SAC PZs
XML )
IRISDMC metadata changes:
View 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-REF USArray Reference Network stations
_US-REGIONAL US Regional Networks
_US-TA USArray Transportable Array (EarthScope) stations
Network
US
Station
LAO
Location
00
Channel
VMU
Instrument
Mass Position Seismometer
Start
2024-07-19T15:50:00 (201)
End
2025-08-06T19:00:00 (218)
Data Center
Latitude
46.6885
Longitude
-106.2231
Elevation (m)
902.0
Depth (m)
0.0
(Local depth or overburden)
Azimuth
0.0
(SEED convention: Clockwise from north, Z=0, reversed=0)
Dip
0.0
(SEED convention: From horizontal, Z=-90, reversed=90)
Sample Rate (Hz)
0.1
Units
Sensitivity
@
Hz (SEED Stage 0)
IRISDMC Response
(RESP
SAC PZs
XML )
IRISDMC metadata changes:
View 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
Network
US
Station
LAO
Location
00
Channel
VMU
Instrument
Mass Position Seismometer
Start
2019-08-02T20:30:00 (214)
End
2024-07-19T15:50:00 (201)
Data Center
Latitude
46.6885
Longitude
-106.2231
Elevation (m)
902.0
Depth (m)
0.0
(Local depth or overburden)
Azimuth
0.0
(SEED convention: Clockwise from north, Z=0, reversed=0)
Dip
0.0
(SEED convention: From horizontal, Z=-90, reversed=90)
Sample Rate (Hz)
0.1
Units
Sensitivity
@
Hz (SEED Stage 0)
IRISDMC Response
(RESP
SAC PZs
XML )
IRISDMC metadata changes:
View 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
_US-REGIONAL US Regional Networks
_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-TA USArray Transportable Array (EarthScope) stations
_US-REF USArray Reference Network stations
Network
US
Station
LAO
Location
00
Channel
VMU
Instrument
Mass Position Seismometer
Start
2011-05-06T15:29:00 (126)
End
2019-08-02T20:30:00 (214)
Data Center
Latitude
46.6885
Longitude
-106.2231
Elevation (m)
902.0
Depth (m)
0.0
(Local depth or overburden)
Azimuth
0.0
(SEED convention: Clockwise from north, Z=0, reversed=0)
Dip
0.0
(SEED convention: From horizontal, Z=-90, reversed=90)
Sample Rate (Hz)
0.1
Units
Sensitivity
@
Hz (SEED Stage 0)
IRISDMC Response
(RESP
SAC PZs
XML )
IRISDMC metadata changes:
View 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
