Environmental Engineering Reference
In-Depth Information
TABLE 11.3
(
Continued
)
Recording Station
Horizontal
Component
Maximum
Remarks
Distance to
Acceleration
Epicenter (E) or
(% gravity)
Fault (F), km
January 21, 1970, Japan; magnitude
6.8
Hiroo
18 (E)
E-W
44
Focal depth
h
60 km
N-S
≈
30
December 21, 1964, Eureka, California; magnitude
6.6
Eureka
24 (E)
N79°E
27
Two-story building
N11°W
17
Alluvium
August 6, 1968, Japan; magnitude
6.6
Uwajima
11 (E)
Transverse
44
Itashima Bridge site
Longitudinal
36
Soft alluvium
Focal depth
h
≈
40 km
May 18, 1940, El Centro, California; magnitude
6.5
El Centro
6 (F)
N-S
32
Two-story heavy reinforced
E-W
21
concrete building with
massive concrete engine
pier. Alluvium
February 9, 1971, San Fernando, California; magnitude
6.5
b
Pacoima Dam
3 (F)
S14°W
115
Small building on rocky spine
Abutment
N76°W
105
adjacent to dam abutment.
Highly jointed diorite gneiss
Lake Hughes
25 (E)
N21°E
37
Small building. 3 m layer of
Station No. 12
N69°W
28
alluvium over sandstone
Castaic Dam
29 (E)
N21°E
39
Small building. Sandstone
Abutment
N69°W
32
March 10, 1933, Long Beach, California; magnitude
6.3
Vernon
16 (E)
N08°E
13
Basement of six-story
S82°E
15
building. Alluvium
December 23, 1972, Nicaragua; magnitude
6.2
Managua
5 (F)
E-W
39
Esso Refinery. Alluvium
N-S
34
June 30, 1941, Santa Barbara, California; magnitude
5.9
Santa Barbara
16 km (E)
N45°E
24
Two-story building
S45°E
23
Alluvium
June 27, 1966, Parkfield, California; magnitude
5.6
C-H No. 2
0.08 (F)
N65°E
48
Small building Alluvium
N25°W
Failed
September 4, 1972, Bear Valley, California; magnitude
4.7
Melendy Ranch
8.5 km (E)
N29°W
69
≈
19 m from San Andreas
N61°E
47
fault. Small building
Alluvium (no damage)
June 21, 1972, Italy; magnitude
4.5
Ancon
a
Ca. 5 (E)
N-S
61
Rock
E-W
45
a
From Bolt, B. A. et al.,
Geological Hazards,
Springer, New York, 1975. Reprinted with permission of Springer.
b
Maximum acceleration
0.15
g
on 31 records within 42 km of the faulted zone.
