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
BRAL
Location
00
Channel
VMU
Instrument
Mass Position Seismometer
Start
2026-04-11T19:00:00 (101)
End
2599-12-31T23:59:59 (365)
Data Center
Latitude
31.1687
Longitude
-87.0506
Elevation (m)
61.0
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
_ANSS-BB Advanced National Seismic System Backbone Stations
_CARIBE-EWS ICG Caribe EWS Reference Network Stations
_US-REGIONAL US Regional Networks
_REALTIME Stations collected and served in real time at the DMC
_US-REF USArray Reference Network stations
_US-TA USArray Transportable Array (EarthScope) stations
_US-ALL All USArray (EarthScope) stations
_US-ALL All USArray (EarthScope) stations
_US-BB USArray Backbone (EarthScope) stations
_US-BB+A USArray Backbone stations + AFTAC array elements
Network
US
Station
BRAL
Location
00
Channel
VMU
Instrument
Mass Position Seismometer
Start
2016-01-25T23:30:00 (025)
End
2026-04-11T19:00:00 (101)
Data Center
Latitude
31.1687
Longitude
-87.0506
Elevation (m)
61.0
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
_ANSS-BB Advanced National Seismic System Backbone Stations
_CARIBE-EWS ICG Caribe EWS Reference Network Stations
_REALTIME Stations collected and served in real time at the DMC
_US-ALL All USArray (EarthScope) stations
_US-ALL All USArray (EarthScope) stations
_US-BB USArray Backbone (EarthScope) stations
_US-BB+A USArray Backbone stations + AFTAC array elements
_US-REF USArray Reference Network stations
_US-REGIONAL US Regional Networks
_US-TA USArray Transportable Array (EarthScope) stations
Network
US
Station
BRAL
Location
00
Channel
VMU
Instrument
Mass Position Seismometer
Start
2014-07-21T19:00:00 (202)
End
2016-01-25T23:30:00 (025)
Data Center
Latitude
31.1687
Longitude
-87.0506
Elevation (m)
61.0
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
_ANSS-BB Advanced National Seismic System Backbone Stations
_CARIBE-EWS ICG Caribe EWS Reference Network Stations
_US-REGIONAL US Regional Networks
_US-BB USArray Backbone (EarthScope) stations
_US-BB+A USArray Backbone stations + AFTAC array elements
_US-REF USArray Reference Network stations
_REALTIME Stations collected and served in real time at the DMC
_US-ALL All USArray (EarthScope) stations
_US-ALL All USArray (EarthScope) stations
_US-TA USArray Transportable Array (EarthScope) stations
Network
US
Station
BRAL
Location
00
Channel
VMU
Instrument
Mass Position Seismometer
Start
2014-07-20T00:00:00 (201)
End
2014-07-21T19:00:00 (202)
Data Center
Latitude
31.1687
Longitude
-87.0506
Elevation (m)
61.0
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
_ANSS-BB Advanced National Seismic System Backbone Stations
_CARIBE-EWS ICG Caribe EWS Reference Network Stations
_US-BB USArray Backbone (EarthScope) stations
_US-BB+A USArray Backbone stations + AFTAC array elements
_US-REF USArray Reference Network stations
_US-REGIONAL US Regional Networks
_US-TA USArray Transportable Array (EarthScope) stations
_REALTIME Stations collected and served in real time at the DMC
_US-ALL All USArray (EarthScope) stations
_US-ALL All USArray (EarthScope) stations
Network
US
Station
BRAL
Location
00
Channel
VMU
Instrument
Mass Position Seismometer
Start
2011-05-02T23:37:00 (122)
End
2014-07-20T00:00:00 (201)
Data Center
Latitude
31.1687
Longitude
-87.0506
Elevation (m)
61.0
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
_ANSS-BB Advanced National Seismic System Backbone Stations
_CARIBE-EWS ICG Caribe EWS Reference Network Stations
_US-BB USArray Backbone (EarthScope) stations
_US-BB+A USArray Backbone stations + AFTAC array elements
_US-REF USArray Reference Network stations
_REALTIME Stations collected and served in real time at the DMC
_US-ALL All USArray (EarthScope) stations
_US-ALL All USArray (EarthScope) stations
_US-REGIONAL US Regional Networks
_US-TA USArray Transportable Array (EarthScope) stations
