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USGS Professonal Paper 1096 - IRIS

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PENNSYLVANIA<br />

Pnllaaelpnu, PA<br />

GENERAL INFORMATION<br />

Operated by:<br />

Address:<br />

The Franklin Institute<br />

The Fels Planetarium<br />

The Franklin Institute<br />

Philadelphia , FA Ilj163<br />

Telephone: 215-448-1000<br />

Address to obtain records:<br />

SITE INFORMATION<br />

National Geophysical .nd Solar-Terrestrial Data Center<br />

NOAA/EDS, D62<br />

I1sylaer, GQ rW392<br />

Code<br />

Station<br />

name<br />

Latitude Longitude Elev Date Date<br />

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

Foundation; geologic<br />

.ge<br />

PHI Philade1Qhia------------ 39.9589 75.1150 5 704 Bi2BOl Solid rock.<br />

INSTRUMENTATION<br />

Seismometer Galvo Type Magnification<br />

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

" T 0<br />

PHI Wenner--------------- NS,EW 9.0 4.9 Photo paper, 1400 ---<br />

pen .nd ink.<br />

Remarks<br />

Timing system:<br />

Pendulum clock checked daily with Dominion Observatory.<br />

System response curve;<br />

Not available.<br />

SHORI HIS lORY<br />

The station .., established for the dual purpose of being<br />

• ., display item well ., •<br />

scientifically useful installation.<br />

At one point it hOllsed •<br />

Ih:eolllh-Rolliherg tlilo-ColilpOllel'lt borlzon[al system >ll addition to tile Wenner.<br />

270

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