VALB - Napa River Bridge, Vallejo, 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 VALB
In Operation 2005/11/27 00:00:00 - Present
Latitude
Longitude:
Elevation: -24.5 meters
Instrumentation Borehole

Location

Network

Northern Hayward Fault Network (BK)

Geology

Borehole Conditions

The VALB borehole was drilled by Caltrans and the sensor package cemented at the depth of 155.4 m.

Station Pictures

Table of Seismic Instrumentation

SensorDataloggerSEED ChannelsLocation
AccelerometerWilcoxon 731A Accel. (0.5 g max 10 v/g)Q330BN?,HN?,LN?40
GeophoneGSC-HS-1LT/VQ330EP?,LP?,SP?40
AuxiliaryAntennaCurrentQ330VE?40
ClockPhaseQ330LC?,VC?40
ClockQualityQ330LC?,VC?40
InputVoltageQ330VE?40
SystemCurrentQ330VE?40
SystemTemperatureQ330VK?40
VCOValueQ330VC?40