University of Utah

Date: Jan. 20, 1998

## Location, Contact, and Address:

University of Utah Regional Seismograph Network operated by:

Earthworm Contact:

## Network Characteristics

Information listed below includes both the Utah and Yellowstone networks

- ~100 analog, short-period telemetry stations (~160 channels)
- 5 broadband stations with analog telemetry
- 2 broadband stations using digital telemetry, 2 additional to be installed shortly
- 2 strong motion stations (one hardwire connection and one with cell phone dial-up access)
- 7 USNSN broadband stations in monitoring region
- Analog network data digitized by Concurrent 7200C computer using HAWK event detection software
- Continous telemetery from 24-bit Reftek digitizers

Flow Chart describing UUSS Data Acquisition System (postscript file)

## Standard Earthworm Modules in current use

USGS Earthworm software (version 2.8) installed on SUN Ultra-140 under Solaris 2.6

- ad_demux
- binder
- coaxtoring
- copystatus
- diskmgr
- eqalarm
- eqbuf
- eqcoda
- eqprelim
- eqproc
- eqverify
- hypo_mgr
- pagerfeeder
- pick_ew
- startstop
- statmgr
- wave_server
- (tankplayer)

## Non-Standard Earthworm Modules in current use

- reftoew: receives packets from Reftek dataserver (dataserver software from UNR), puts data into EW trace_ring, and outputs continuous SAC files. Code written by D. Chavez under contract to the University of Utah.
- nsn_rcv: receives data feed from USNSN (currently 7 stations located in montoring area). Code written by D. Chavez under contract to the University of Utah.
- nsn_sta: writes SAC-format files for USNSN data locally. Code written by D. Chavez under contract to the University of Utah..
- vdl: sends data feed (currently 8 analog-telemetered, short-period and 2 digitally-telemetered BB stations) to USNSN. Code written by D. Ketchum, USGS.

## Needs

- Documentation!!!
- Technical Support

Return to main Earthworm or Sites pages.