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USGS Professonal Paper 1096 - IRIS

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TEXAS<br />

Dallas, TX<br />

GENERAL 1~9RMATION<br />

Operated by:<br />

Address:<br />

Southern Methodist University<br />

Dallas Seismological Observatory<br />

Southern Methodist Universit¥<br />

Dallas, TX 75275<br />

Telephone: 214-692-2760<br />

Address to obtain re!:Qrds'<br />

SITE INFORMATION<br />

A, above.<br />

WWSSN records:<br />

National Geophysical and Solar-Terrestrial Data Center<br />

NOAA/EDS, 062<br />

Boulder l<br />

CO 80302<br />

Code<br />

Station name<br />

La ti tude Longitude Elev Elate Elue<br />

(deg N.) (deg W.) (meters) opened closed<br />

.<br />

Foundation; geologic age<br />

DAL Dallas------------------ 32.8461 96.7839 187 1953 Open-- Austin Group; Late Cretaceous.<br />

INSTRUI1ENTATION<br />

Seismometer Galva Type Magnification<br />

Code Type Component To(sec) Tg(sec) recording ,t T<br />

0<br />

Remarks<br />

DAL Benioff-------------- Z,NS,EW 1.0 o. 75 Photo paper 25 K 'ir.'WSSN.<br />

Sprengnether--------- Z,NS,EW 15.0 100 . 0 --du------- 1.5 K Do.<br />

..<br />

Timing system: WWSSN standard.<br />

System res20nse curves: s,' figure 1 ..<br />

SHORT HISTORY<br />

363.<br />

The WWSSN equipment began operating io June 1962.<br />

300

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