Map
of California & Nevada earthquakes
HERB - Caltrans Maintenance Yard, Hercules, CA, USA
Caltrans drill rig at HERB |
2001/09/18 23:44:00 - Present
Latitude: 38.0124
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Drilling the HERB borehole |
Location |
Geology |
Vault Conditions
Instrumentation |
Network |
Operation Notes
Noise Characteristics |
Data Availability
- Location:
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The station is located at the Hercules Maintenance Yard in Hercules,
California, and is under the auspices of Caltrans.
- Geology:
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To be determined
- Vault/Borehole conditions:
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The HERB borehole was drilled by Caltrans and
the sensor package cemented at the depth of 217m.
- Instrumentation:
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Sensor Datalogger Start Date End Date SEED Channels Location Battery Voltage Q4120 2002/07/25 Present LE?,UE? Oyo GeoSpace GS-11 Vertical Geophone Q4120 2001/09/18 Present EP?,BP?,LP?,DP? Wilcoxon 731A Accel. (0.5 g max 10 v/g) Q4120 2001/09/18 Present BL?,CL?,LL?,HL? - Network:
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BK (Northern Hayward Fault Network)
- Operation Notes: (may not be current)
- This section summarizes major changes in equipment or in instrumentation at HERB.
- 09/18/2001: Q4120 installed and data acquisition initiated.
- Noise Characteristics:
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No noise information for HERB is available at this time.
- Data Availability:
- BDSN waveforms and associated metadata are available at the
Northern California Earthquake Data Center (NCEDC).
- Map of NHFN stations
- Table of NHFN stations
- BK Information Directory, including
- List of station locations
- List of available channels
- Instrument Response
- Information on Quanterra Timing Errors
Several tools provide access to SEED format data at the NCEDC, both in terms of querying the archives and allowing data requests.- Querying the archives
- Requesting data
Help on using these tools is available.
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Berkeley Seismological Lab
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Copyright 1995-2005, The Regents of the University of California.
Last modified: Wed Jun 25 13:34:08 PDT 2008