SVIN - St. Vincent's Sch. for Boys, San Rafael, 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.

BARD is our GPS network for monitoring crustal deformation across the Pacific-North America plate boundary and in the San Francisco Bay Area for earthquake hazard reduction studies and rapid earthquake emergency response assessment

Station Name SVIN (SVIN)
In Operation 2003/08/05 17:51:00 - Present
Elevation: -27.5 meters
Instrumentation Borehole


SVIN is located in San Rafael, California, under the auspices of the St. Vicent's School for Boys. This site is known as SFSTV in the USGS Low Frequency Network.


Mini Plate Boundary Observatory Network (BK)
Bay Area Regional Deformation Network Network (BARD)
USGS Low Frequency Network (UL)


Alluvium, lake, playa, and terrace deposits

Borehole Conditions

The MiniPBO borehole was installed on 08/29/2002. The strainmeter was installed at 527.0 ft and the seismometer package at 500.0 ft depth. This figure shows the location of equipment in the borehole.

GPS Monument Description

1.25" pipe bolted into borehole casing

Seismic Station Pictures

View St. Vincent's School

View St. Vincent's School

Drilling at SVIN

Drilling at SVIN

GPS Station Timeseries

Time series processing at the BSL *

Last year Clean Clean & detrended Raw Raw & detrended
Lifetime Clean Clean & detrended Raw Raw & detrended
Text file (final results only) Clean Raw


GPS Station Pictures





Table of Seismic Instrumentation

SensorDataloggerSEED ChannelsLocation
GeophoneMark Products L-22 Horizontal GeophoneBASALT8XEP?,LP?,SP?40
Mark Products L-22 Vertical GeophoneBASALT8XEP?,LP?,SP?40
Sacks 3-component Tensor StrainmeterBASALT8XBS?,HS?,LS?40
Setra Systems Model 270 BarometerBASALT8XLD?40

GPS Instrumentation

GPSTopcon Net-G3AAshtech Choke-RingSCIGN Tall-

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

Waveform Data

GPS Data

Noise Analysis

View more noise plots

GPS Data Quality


Data completeness is defined both as "Completeness of observations" and "Cycle slips per observation". "Completeness of Obs." is the number of epochs in the final RINEX file normalized to the expected number. This percentage will go down if time is missing from the RINEX file. "Cycle slips per Obs." is the total number of detected cycle slip normalized to the total number of observations in the RINEX file. This number will increase as the receiver loses lock on satellites more frequently.

Previous Year
SVIN completeness last year
SVIN completeness lifetime


The effects of multipath on the data are estimated by parameters for L1 and L2 (MP1 and MP2 respectively); see Estey and Meertens (GPS Solutions, 1999) for derivation. The daily value is the RMS of MP1 and MP2 throughout the day and for all satellites. Higher values indicate a greater prevalence and/or strength of multipathing, i.e. objects on the ground are providing multiple reflection pathways from the satellite to antenna.

Previous Year
SVIN multipath last year
SVIN multipath lifetime

Signal-to-Noise Ratio

The Signal-to-Noise ratios are the mean values above the QC elevation mask for L1 and L2 respectively.

Previous Year
SVIN SNR last year
SVIN SNR lifetime