USGS Professonal Paper 1096 - IRIS

OREGON
Baker, 01\
GENERAL INFORMATION
Operated by:
Address:
U.S. Geological Survey
Baker Observatory--Closed
U.S. Geological Survey
Baker, fJR ~j'814
(Obsolete)
Address to obtain records:
SITE IIW8R1IA'I'I8Ij
1902-1960: 1960-1975:
Teledyne-Geotech
U.S. Geological Survey
Seismie Data 'nal)sis Genter 8£aft~H gf Gleba1 S€'ismglegy
314 Montgomery Street Stop 967
Alexandria. VA 22314 Box 25046, Denver Federal Center
Denver, CO 80225
Code
Station
name
Latitude Longitude Elev Date Date
(deg N. ) (deg W. ) (meters} opcned closed
Foundation; geologic
age
,"0 Blue Mountain----------- 44.8489 117.3056 1189 1962 5/12/75 Granite; Early Triassic.
INSTRUMENTATION
Seismometer Galva Type Magnification
Code Type Component T (sec) Tg(sec) recording
" T
0 0
Remarks
BMO J olmson-Ha the:;on- - --- Z 1.25 0.33 Helicorder 700 K Sixtecn instruments in
an 3ti3Y· Hag/ancation
at 1 sec .
Benioff 1051--------- Z 1 .0 . 065 Develocorder Z5 K Located at the tank
farm.
Johnson-Matheson 7515 NS,EW 1.25 .33 --do-------- 160 K Do.
Geotech 7505A, 8700A- Z,NS,EW 20.0 110.0 --do-------- 8.5 K, Do.
3.2 K, 4 K
Geotech 8700B-------- NS,EW 2 5 .64 --do-------- --- Do.
Ileitoll I(lOI2--------- , , .42 .64 do Bo.
Timing system: Geotech 11880.
System response curves:
Available with records.
SHORT HISTORY
HMO was an arraY,orlglnally of 10 statlons all S1 tuated wltnln a 2. 5-kill radlus. ,et op by AFIAC. Ihe SLaLl0n .., turned
over to the USGS in 1966. Originally, the "tank farm" location had a total of nine instruments ron at different gains and
having different periods.
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