YBIB - Yerba Buena Island, San Francisco, 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 YBIB
In Operation 1996/06/28 23:25:00 - 2000/08/24 02:00:00
Elevation: -27.0 meters
Instrumentation Borehole


BBEB is one of the bridge sites of the Northern Hayward Fault Network. The borehole is located on Yerba Buena Island, near the San Francisco - Oakland Bay Bridge. This site is operated under the auspices of Caltrans and the City of San Francisco.

YBIB has been offline since August 24, 2000, when renovation on the island cut power cables. We hope to restore this station in the future.


Northern Hayward Fault Network (BK)



Borehole Conditions

The borehole extends to a depth of 61 m.

Station Pictures

San Francisco-Oakland Bay Bridge<br>Courtesy of Caltrans

San Francisco-Oakland Bay Bridge
Courtesy of Caltrans

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Table of Seismic Instrumentation

SensorDataloggerSEED ChannelsLocation
AccelerometerWilcoxon 731A Accel. (0.5 g max 10 v/g)Q4120BL?,CL?,HL?,LL?
GeophoneOyo GeoSpace GS-11 Vertical GeophoneQ4120BP?,DP?,EP?,LP?

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

Waveform Data