USGS - Menlo Park, CA

Date: January 8, 1998

Location, Contact, and Address:

Northern California Seismic Network, recorded at USGS, Menlo Park, CA

David Oppenheimer (oppen@usgs.gov) 650-329-4792
Lynn Dietz (dietz@usgs.gov) 650-329-5520
Will Kohler (kohler@usgs.gov) 650-329-4761

345 Middlefield Rd, MS 977, Menlo Park, CA 94025

Network Characteristics:

Over 500 Analog stations, mostly short-period, vertical component, covering northern California with a few in southern Oregon

Analog data are digitized by National Instruments A/D's on two 486/DOS computers

15- continuous 16-bit DST (Digital Seismic Telemetry) stations (3 channels each)


Standard Earthworm Modules Currently in Use

Waveform Data Acquisition & Conversion:

Rapid Earthquake Location & Notification:

For our rapid notificaton system, we run this basic Earthworm system (v2.9+) in parallel on two computers, a Pentium running Windows NT-4.0 and a Pentium running Solaris-2.6:

Auxiliary Tasks & Data Exchange:

In addition to our Earthworm rapid-notification computers, we have several other PC's (OS/2, NT and Solaris) which listen to the broadcast waveform data and perform other tasks.


Programs/modules under development:

Our Additional Goals:


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