BDM - Black Diamond Mines Park, Antioch, CA, USA
We operate broadband and borehole stations under the network code BK. The Berkeley Digital Seismic Network (BDSN) is a regional network of very broadband and strong motion seismic stations designed to monitor regional seismic activity as well as provide high quality data. The Berkeley borehole stations have borehole geophones or other seismic sensors and may have other geophysical instrumentation.
| Station Name | BDM |
| In Operation | 1998/11/12 00:00:00 - Present |
| Latitude | |
| Longitude: | |
| Elevation: | 219.8 meters |
| Instrumentation | Broadband |
Location
Site is located south of Antioch, California, in a former lignite and sand mine in the Black Diamond Mines Regional Park, under the auspices of the East Bay Regional Park District.
Network
Berkeley Digital Seismic Network (BK)Geology
Sand
Borehole Conditions
The instruments are sited approximately 150 meters into an old mine tunnel. There is a ~100 meter overburden composed of sandstone, shale, and coal, which limits thermal fluctuations. In addition, 7 centimeters of foam cover the instruments.
Station Pictures
Black Diamond Mines Regional Park |
View of equipment rack at BDM |
Table of Seismic Instrumentation
| Sensor | Datalogger | SEED Channels | Location | |
| Broadband | Streckeisen STS-2 VBB Tri-Axial Seismometer | Q330HR-GFE | BH?,HH?,LH?,VH? | 00 |
| Accelerometer | Kinemetrics FBA ES-T Accel. GFE (4 g max 5 v/g) | Q330HR-GFE | HN? | 00 |
| Auxiliary | AntennaCurrent | Q330HR-GFE | VE? | 00 |
| ClockPhase | Q330HR-GFE | LC?,VC? | 00 | |
| ClockQuality | Q330HR-GFE | LC?,VC? | 00 | |
| InputVoltage | Q330HR-GFE | VE? | 00 | |
| SystemCurrent | Q330HR-GFE | VE? | 00 | |
| SystemTemperature | Q330HR-GFE | VK? | 00 | |
| VCOValue | Q330HR-GFE | VC? | 00 |
Waveforms and associated metadata are available at the Northern California Earthquake Data Center (NCEDC).
Waveform Data
- BK Information Directory, including
- List of station locations
- List of available channels
- Instrument Response
- Querying the archives
- Download waveform data
