TRAY - Twisselman Ranch, Shandon, 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 | TRAY |
| In Operation | 2016/05/26 00:00:00 - 2024/04/30 15:50:00 |
| Latitude | |
| Longitude: | |
| Elevation: | 690.0 meters |
| Instrumentation | Borehole |
Location
Network
Berkeley Digital Seismic Network (BK)Geology
Pliocene or Pleistocene sandstone, shale, and gravel deposits
Borehole Conditions
This was a TremorScope borehole station. The casing was Schedule 21 PVC, and the inner diameter of the borehole was 6 inches. A hut was constructed over the borehole with solar panels on the roof providing power for the site. Site was decommissioned in 2024.
Station Pictures
The hut at TRAY |
Engineers installing equipment at TRAY. |
Table of Seismic Instrumentation
| Sensor | Datalogger | SEED Channels | Location | |
| Broadband | Guralp CMG-3TB Broad Band Seismometer | CMG-DM24-EAM | BH?,CH?,LH? | 40 |
| Accelerometer | Guralp CMG-5TC | CMG-DM24-EAM | HN? | 00 |
| Guralp CMG-5T | CMG-DM24-EAM | HN? | 40 |
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
