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USGS Professonal Paper 1096 - IRIS

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CALIFORNIA<br />

L1vermore, CA<br />

GENERAL INFORMATION<br />

Operated by:<br />

Lawrence Livermore Laboratory<br />

of the University of California<br />

Address: Seismic Research Group, L-42<br />

Lawreilce Liverillore Laboratory<br />

P.O. Box 808<br />

Livermore, CA 94550<br />

Telephone: 415-447-1100 ext. 3475<br />

Telex: 34-6407<br />

Add~ess<br />

tQ sbtaia reGsrds'<br />

As above.<br />

SITE INFORMA,!:~ON<br />

Code<br />

Station name<br />

Latitude<br />

(deg N.)<br />

Longitude<br />

(deg W.)<br />

Elev<br />

(meters)<br />

Date<br />

opened<br />

Date<br />

closed<br />

Foundation; geologic age<br />

LAC<br />

Landers-----------------<br />

34.3898<br />

116.4115<br />

792<br />

8/68<br />

Open--<br />

Gneiss; Precambrian.<br />

INSTRUMENTATION<br />

Seismometer<br />

Code Type Component<br />

To(sec)<br />

Galvo<br />

Tg(sec)<br />

Type<br />

recording<br />

Magnification<br />

at T<br />

0<br />

Remarks<br />

LAC Sprengnether--------- z<br />

--do-----------------<br />

NS,EW<br />

20.0<br />

40.0<br />

Magnetic tape<br />

--do---------<br />

Variable<br />

--do----<br />

Maximum magnification<br />

100 K. Telemetered<br />

Ll.vermore and !lenla<br />

Park.<br />

Do.<br />

to<br />

Timing system:<br />

IRIG time codes Band C synchronized to WWV.<br />

SystEII rEsponSE CUI.ES. SEE figurE 5, p. 364.<br />

SHORT HISTORY<br />

The principal interest of the Laboratory is to monitor nuclear explosions.<br />

LAC is located underground in a mine shaft.<br />

59

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