SM2B - St. Mary's College Borehole, Moraga, 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 SM2B
In Operation 2007/03/06 00:38:00 - Present
Latitude
Longitude:
Elevation: 200.0 meters
Instrumentation Borehole

Location

Site is located at Saint Mary's College in Moraga, California.

Network

Northern Hayward Fault Network (BK)

Geology

Sandstone

Borehole Conditions

The SM2B borehole was drilled by Caltrans. They also installed and cemented the sensor package at a depth of 150.9 m.

Station Pictures

St. Mary's College

St. Mary's College

Site of SM2B borehole

Site of SM2B borehole

Table of Seismic Instrumentation

SensorDataloggerSEED ChannelsLocation
AccelerometerWilcoxon 731A Accel. (0.5 g max 10 v/g)BASALT8XBN?,CN?,LN?40
GeophoneOyo GeoSpace GS-11 Vertical GeophoneBASALT8XDP?,LP?,SP?40
AuxiliaryCPULoadAverageBASALT8XLC?40
CalibrationInputBASALT8XLC?40
ClockPhaseBASALT8XLC?40
ClockQualityBASALT8XLC?40
DataStorageUsedBASALT8XLC?40
HumidityBASALT8XLI?40
InputVoltageBASALT8XLE?40
SystemCurrentBASALT8XLE?40
TemperatureBASALT8XLK?40

Waveforms and associated metadata are available at the Northern California Earthquake Data Center (NCEDC).

Waveform Data