PERMFILE64516

• Permit No: M2001035
• IBM Index Class Name: Permit File
• Doc Date: 7/8/2001
• Doc Name: PROBABILISTIC SEISMIC HAZARD ANALYSIS TROUT CREEK DAM PROJECT NEAR BUENA VISTA CHAFFEE CNTY COLO
• Media Type: D
• Archive: No

• • VII
TABLES
Pyv
tats 1. Property damage and lives lost in notable United States earthquakes _____ __________________________________ __ 6
2. Summaryof earthquake recurrence relations in the United States ________ _________________________________ __ 7
3. Relative seismicity of regions of the United States-°______________________'-__°_-----_°-°----_-__-_--- -- 8
4. Seismicity parametera(or seismic source mnes___________________________________________°-_--_---_-------_ _- 9
5. Criteria for recognizing en active fault ____________________________________________________________________ __ 10
6. Classification of fault ectivity'______________________'_--__-_°----'_----_------____--------_
-------------
-- 11
7. Classification of selec4dfaulu relative to Fremont,Calit____________________________________________________ __ 11
8. Relative intensity values end ground character, central Califomia __________________________________________ __ 19
3-13. Distance attenuation exponents derived Gom horimntal component PSRV spectra:
9. Northern Utah area -•---------'---'--------------------------------------------------------- -- 24
10. Southern Nevede area ----------------------------'------'-------------°-'------------------- - 25
11. CalJomia-----------------°-------------------------------------------------°------------- -- 25
12. Piceance Creek Basin. Colo-------------------------------°-_---------------°------------__-- -- 25
13. San Juan Basin. N. lfex ----------------'-----'-------'------------------------------------ -- 25
14. Magnitudes and seismic momenta of southern California earthquekee________________________________________ __ 28
15. Values of peak horizontal ground acceleration recorded in past earthquakes and used for estimating horimntal
ground motions in earthquake-resistant design ________________________________________________________ __ 29
I6. Values of peak horizontal ground velocity and displacement derived from arcelerograms of pest earthquakes end
used forestimeting horizontal ground motions in earthquake-resistant design ____________________________ __ 32
17. Characteristics of the data samples used in selected studies of the correlation of Modified Mercelli intensity end
peak ground ecceleretion-•--------------------•---'---------------------'-----'------'------------- - 41
18. Horizontal ground eccelerationa for the operating basis earhquake and safe shutdown earthquake for nuclear
powerplant sites in the t'nited States .-------------------------------------------°-_---_---_----_-- -_ 46
19. Earthquake accelerograms used to derive site-independent spectra _______________________________ __________ __ 48
20. Relative values of maximum ground acceleration, velocity, and displacement; "standard earthquake' __________ __ 50
21. Horizontal design response spectra end relative values of spectrum amplification factors for control points ______ __ 50
22. Vertical design response spectra and relative values of spectrum amplification factors for control points ________ __ 52
23. Uncertainties in phyaitalparametera that effect ground motion______________________________________________ __ 67
GLOSSARI'
baorplioa A process whereby the energy of a seismic wave iscon-
verted ieto heating o(the medium through which the wave passes.
tccelerogram. The record from en accelerometer showing acceler-
ation az afunction of time.
accelerometer. M iostntment for measuring acceteratioo.
.eceptable risk, A specification of the acceptable number of
fatalities due to earthquake hazards, or en equivalent statement
in terms of loss in buildings.
tcoustie impedance. Seismic wave velocity multiplied by density
of the medium.
\clive fault A fault is active if, because of its present tectonic
setting, it can undergo movement from time to time in the im-
mediate geologic future.
\Cterahocks. Minor seismic tremors that may follow an under
ground nuclear detonation or the secondary tremors after the main
shock of an earthquake.
\Buvium. A general term for loosely compacted particles of rock,
sand, clay and w forth deposited by streams in relatively recent
geologic limes.
\mplification. Modification of the input bedrock ground motion by
the overlying unconsolidated materials. Amplification causes the
amplitude of the surface ground motion to be increased in some
range of frequencies and decreased in others Amplification is a
funtiioa of the shear-wave velocity end damping of the unconsoli-
dated mekrials, its tr. ickness and geometry, and the strain level of
the input rock motion.
\mpGtude. Maximum deviation from mean or center line of wave.
\atpBtude spectrum. Amplitude versus frequency relation such
u is computed io a Fourier analysis. See Fourier transform.
Anisotrophic mess. A materiel having diRerent properties in dJ-
ferent direction at any given point.
Anisotropy. Vazietion of a physiral property depending on the
orientation along which it is measured.
Momaly. A deviation from uniformity or normality.
Asthenosphere. The layer or shell of the earth below the litho-
sphere; roughly equivalent to the upper mantle.
Attenuatlon. (1) a decrease of signal amplitude during transmie-
aion,l2) areduction in amplitude or energy with or without change
of waveform, or (3) the decrease in seismic signal strength with
distance which depends not only on geometrical spreading but also
may be related to physical chazacteristio of the transmitting
medium causing absorption and scettering.
Bandpass, Describing a range of frequencies (bandwidth) in which
transmission is nearly complete while signals at frequencies out-
side these limits are attenuated substantially.
Bar. Equals 1 atmosphere: A unit of pressure, 0.01 kilopescal.
Basement The igneous, metamorphic, or highly folded rock under-
lying sedimentary unib.
Bedrock. M solid rock exposed et the surface or underlying soil;
has shear-wave velocity greater than T65 m;s at small (0.0001
percenU strain. See Firm soil and Soft soil
Body wave. Waves propagated in the interior of s body, that is,
compression and shear waves, the P• and Sweves of seismology.
Body wave magnitude. me. See Magnitude.
Bulk modulus. The ratio of the change in overage stream to the
change in unit volume.
Capable fault A fault that has the po4ntial [o undergo future
surface displacement A fault is capable iC (1) it hu had late