USGS Professonal Paper 1096 - IRIS

ARIZONA
Payson
AZ
GENERAL INFORMATION
Operated by:
Address:
Air Force Technical Applications Center
Tonto Forest Seismological Observatory--Closed
P.O. Box F
Payson, AZ 85541
(Obsolete)
Address to obtain records:
SITE INFORMATION
Teledyne-Geotech
Seismic Data Analysis Center
314 Montgomery Street
Alexandria, VA 22314
Code
Station name
I.atohliee I,engitliEle Ele Date Date
(deg N. ) (deg w. ) (meters) opened closed
FOUnQatlon; geologlc age
TFO Tonto Forest Array------ 34.2678 111. 2703 1492 1963 3/75 Sandstones and limestones; Cambrian
aile! {Ie enian.
INSTRUl'lENTATION
Seismometer Galvo Typ. Magnification
Code Typ. Component To(ser:) T (sec) recording
g " T
0
Remarks
TFO Johnson Matheson----- Z 1.25 0.32 Film, 1,000 K Thirty-seven instruments
magnetic tape.
in an array.
Geotech 7505A-------- Z 20.0 110.0 --do--------- 100 K On. component of the
three-com2onent system
at each of seven
stations.
Geotech 8700C-------- NS,EW 20.0 30.0 --do--------- 100 K Two components of the
three-component system
at e H1' b of seven
stations.
Timing system:
Hyperian model HI-ISS.
System response curves:
Available with records.
SHORT HISTORY
Th. Tonto Forest Seismological Observatory, built in 1963, w"' designed to record seismic events and to b. used
" a
laboratory foe seismograph equipment. Th. instrumentation w"' assembled, installed, and operated until April 30, 1965, by
Illl it ed EleTI mdy:namic5 (iIED)--Jater Earth Sciences Ie]edy:ne Company: In l'Jarch J26~ tbe LRSM ~rogram Qrovided eight .. obile
seismic-recording vans to extend the existing arrays. On May 1965, Geotecb assumed tb. operation. During 1965, a 37-element
short-period array and a 7-element long-period array were designed " and installed. Recording of 17 of these instruments (shortperiod)
w .. discontinued in October 1971.
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