Imperial Valley Aftershock 1979-10-15 23:19:35 UTC


Region:  California
Latitude:  32.7667
Longitude:  -115.4413
Depth:  9.50 km
Mechanism:  Strike-slip
Strike:  320
Dip:  90
Rake:  180
Seismic Moment:  3.67282300498088e+23
ML:  5.0
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Holtville, CA - Post Office Hypocentral dist: 12.3 km
USGS station 5055 Site Geology: Alluvium
Processing by: USGS Structure: 1-Story Bldg
Data Available: corrected acceleration, velocity, displacement, & spectra
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Component: 315 PGA (cm/s/s): 246.06 PGV (cm/s): 16.16 Add this to bin
Component: 225 PGA (cm/s/s): 112.67 PGV (cm/s): -7.08 Add this to bin
Component: Up PGA (cm/s/s): -44.82 PGV (cm/s): -1.03 Add this to bin

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El Centro, CA - Array Sta 7; Imperial Valley College Hypocentral dist: 12.9 km
USGS station 5028 Site Geology: alluvium
Processing by: USGS Structure: 1-Story Bldg
Data Available: corrected acceleration, velocity, displacement, & spectra
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Component: 322 PGA (cm/s/s): -141.50 PGV (cm/s): -7.58 Add this to bin
Component: 52 PGA (cm/s/s): -205.76 PGV (cm/s): 12.38 Add this to bin
Component: Up PGA (cm/s/s): 101.45 PGV (cm/s): 1.00 Add this to bin

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El Centro, CA - Array Sta 6 - 551 Huston Rd Hypocentral dist: 13.2 km
USGS station 5158 Site Geology: alluvium; more than 300m
Processing by: USGS Structure: Inst Shelter H
Data Available: corrected acceleration, velocity, displacement, & spectra
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Component: 230 PGA (cm/s/s): 268.82 PGV (cm/s): -25.17 Add this to bin
Component: 140 PGA (cm/s/s): 157.47 PGV (cm/s): 13.63 Add this to bin
Component: Up PGA (cm/s/s): 86.20 PGV (cm/s): -1.50 Add this to bin

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El Centro, CA - Differential Array Hypocentral dist: 13.4 km
USGS station 5165 Site Geology: alluvium
Processing by: USGS Structure: Inst Shelter
Data Available: corrected acceleration, velocity, displacement, & spectra
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Component: 360 PGA (cm/s/s): 136.66 PGV (cm/s): -6.47 Add this to bin
Component: 270 PGA (cm/s/s): -145.20 PGV (cm/s): 11.93 Add this to bin
Component: Up PGA (cm/s/s): -103.63 PGV (cm/s): 2.06 Add this to bin

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El Centro , CA - Array Sta 8 - 95 E Cruickshank Rd Hypocentral dist: 13.6 km
USGS station 5159 Site Geology: alluvium; more than 300m
Processing by: USGS Structure: Inst Shelter H
Data Available: corrected acceleration, velocity, displacement, & spectra
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Component: 230 PGA (cm/s/s): -147.54 PGV (cm/s): 9.93 Add this to bin
Component: 140 PGA (cm/s/s): -130.15 PGV (cm/s): -5.77 Add this to bin
Component: Up PGA (cm/s/s): -73.73 PGV (cm/s): 1.33 Add this to bin

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El Centro, CA - Array Sta 5 - 2801 James Hypocentral dist: 13.9 km
USGS station 0952 Site Geology: alluvium; more than 300m
Processing by: USGS Structure: Inst Shelter H
Data Available: corrected acceleration, velocity, displacement, & spectra
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Component: 230 PGA (cm/s/s): -274.74 PGV (cm/s): 12.04 Add this to bin
Component: 140 PGA (cm/s/s): -221.36 PGV (cm/s): 11.59 Add this to bin
Component: Up PGA (cm/s/s): -134.46 PGV (cm/s): -2.92 Add this to bin

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El Centro, CA - Array Sta 9; Imperial Valley Irrigation District - 302 Commercial Hypocentral dist: 14.2 km
USGS station 0117 Site Geology: Alluvium; more than 300m
Processing by: USGS Structure: 2-story bldg
Data Available: corrected acceleration, velocity, displacement, & spectra
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Component: 360 PGA (cm/s/s): 185.56 PGV (cm/s): -3.21 Add this to bin
Component: 90 PGA (cm/s/s): -192.02 PGV (cm/s): -10.08 Add this to bin
Component: Down PGA (cm/s/s): 125.66 PGV (cm/s): -2.24 Add this to bin

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El Centro, CA - Array Sta 4 - 2905 Anderson Hypocentral dist: 14.4 km
USGS station 0955 Site Geology: alluvium; more than 300m
Processing by: USGS Structure: Inst Shelter H
Data Available: corrected acceleration, velocity, displacement, & spectra
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Component: 230 PGA (cm/s/s): -162.33 PGV (cm/s): 9.50 Add this to bin
Component: 140 PGA (cm/s/s): -229.63 PGV (cm/s): 12.68 Add this to bin
Component: Up PGA (cm/s/s): 149.53 PGV (cm/s): 1.67 Add this to bin

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Calexico, CA - Fire Station Hypocentral dist: 15.2 km
USGS station 5053 Site Geology: Alluvium
Processing by: USGS Structure: 1-Story Bldg
Data Available: corrected acceleration, velocity, displacement, & spectra
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Component: 315 PGA (cm/s/s): -64.45 PGV (cm/s): -5.32 Add this to bin
Component: 225 PGA (cm/s/s): -98.17 PGV (cm/s): 7.82 Add this to bin
Component: Up PGA (cm/s/s): 33.09 PGV (cm/s): 1.49 Add this to bin

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El Centro, CA - Array Sta 10; El Centro Community Hospital - Imperial & Ross Hypocentral dist: 15.2 km
USGS station 0412 Site Geology: alluvium; more than 300M
Processing by: USGS Structure: 1-Story Bldg
Data Available: corrected acceleration, velocity, displacement, & spectra
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Component: 320 PGA (cm/s/s): -50.26 PGV (cm/s): 3.12 Add this to bin
Component: 50 PGA (cm/s/s): -60.00 PGV (cm/s): -3.81 Add this to bin
Component: Up PGA (cm/s/s): -25.41 PGV (cm/s): 0.41 Add this to bin

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Bonds Corner, CA - Omlim residence - Hwys 115 & 98 Hypocentral dist: 15.9 km
USGS station 5054 Site Geology: Alluvium
Processing by: USGS Structure: 1-Story Bldg
Data Available: corrected acceleration, velocity, displacement, & spectra
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Component: 230 PGA (cm/s/s): 125.90 PGV (cm/s): 7.73 Add this to bin
Component: 140 PGA (cm/s/s): -67.67 PGV (cm/s): 3.94 Add this to bin
Component: Up PGA (cm/s/s): 49.67 PGV (cm/s): 0.93 Add this to bin

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El Centro, CA - Array Sta 11; McCabe School Hypocentral dist: 17.3 km
USGS station 5058 Site Geology: alluvium
Processing by: USGS Structure: 1-Story Bldg
Data Available: corrected acceleration, velocity, displacement, & spectra
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Component: 230 PGA (cm/s/s): 188.45 PGV (cm/s): 12.49 Add this to bin
Component: 140 PGA (cm/s/s): 95.07 PGV (cm/s): -7.43 Add this to bin
Component: Up PGA (cm/s/s): -58.63 PGV (cm/s): 2.00 Add this to bin

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El Centro, CA - Array Sta 3 - Pine Union School Hypocentral dist: 17.9 km
USGS station 5057 Site Geology: alluvium
Processing by: USGS Structure: 1-Story Bldg
Data Available: corrected acceleration, velocity, displacement, & spectra
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Component: 230 PGA (cm/s/s): -97.20 PGV (cm/s): 5.55 Add this to bin
Component: 140 PGA (cm/s/s): -136.41 PGV (cm/s): 12.25 Add this to bin
Component: Up PGA (cm/s/s): 38.07 PGV (cm/s): -1.07 Add this to bin

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El Centro, CA - Array Sta 2 - Keystone Rd Hypocentral dist: 20.4 km
USGS station 5115 Site Geology: Alluvium
Processing by: USGS Structure: Inst Shelter H
Data Available: corrected acceleration, velocity, displacement, & spectra
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Component: 230 PGA (cm/s/s): 81.28 PGV (cm/s): -3.24 Add this to bin
Component: 140 PGA (cm/s/s): -151.14 PGV (cm/s): -10.44 Add this to bin
Component: Up PGA (cm/s/s): 47.02 PGV (cm/s): 1.16 Add this to bin

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El Centro, CA - Array Sta 1 - Borchard Ranches Hypocentral dist: 26.1 km
USGS station 5056 Site Geology: alluvium
Processing by: USGS Structure: 1-Story Bldg
Data Available: corrected acceleration, velocity, displacement, & spectra
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Component: 230 PGA (cm/s/s): 29.84 PGV (cm/s): 0.87 Add this to bin
Component: 140 PGA (cm/s/s): -60.86 PGV (cm/s): 5.01 Add this to bin
Component: Up PGA (cm/s/s): -37.93 PGV (cm/s): 0.36 Add this to bin

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Brawley, CA - Brawley Airport - Airport Hangar Hypocentral dist: 28.1 km
USGS station 5060 Site Geology: Alluvium
Processing by: USGS Structure: 1-story bldg Metal Hangar
Data Available: corrected acceleration, velocity, displacement, & spectra
Summary Page for this StationPlot Acceleration
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Component: 315 PGA (cm/s/s): -59.08 PGV (cm/s): 3.05 Add this to bin
Component: 225 PGA (cm/s/s): -35.21 PGV (cm/s): 2.19 Add this to bin
Component: Up PGA (cm/s/s): 55.02 PGV (cm/s): -0.74 Add this to bin

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Delta, Mexico Hypocentral dist: 33.6 km
IdeI station 6605 Site Geology: Deep Alluvium
Structure: Inst Shelter D
Data Available: uncorrected acceleration only
Summary Page for this StationPlot Acceleration

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Component: 352 PGA (cm/s/s): 108.20 PGV (cm/s): - Add this to bin
Component: 262 PGA (cm/s/s): 58.40 PGV (cm/s): - Add this to bin
Component: Down PGA (cm/s/s): 23.80 PGV (cm/s): - Add this to bin

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