Difference between revisions of "1972 earthquake"

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*<span style="color:#ff0000">Need to have a map showing the 1951 earthquake sequences and the 1972 earthquake sequences, and the potential location of the 1972 surface rupture
 
*<span style="color:#ff0000">Need to have a map showing the 1951 earthquake sequences and the 1972 earthquake sequences, and the potential location of the 1972 surface rupture
 +
*Macroseismic map of this earthquake clearly shows the rupture fault was propagating northward, with unilateral rupture. This is coincide to the aftershock distribution from previous studies.
 +
*No surface rupture can be found in the field, based on the interview results and the aerial photo investigation
  
 
==Mainshock magnitude==
 
==Mainshock magnitude==
 +
* It is important to find out what is the magnitude of the mainshock. The magnitude from global catalog is listed below
 
{| class="wikitable"
 
{| class="wikitable"
 
! Source !! 緯度(N) !! 經度(E) !! 深度(km) !! 規模 !! Type  
 
! Source !! 緯度(N) !! 經度(E) !! 深度(km) !! 規模 !! Type  
Line 11: Line 14:
 
| 23.564 || 121.539 || 22.2 || 7.0 || Mw  
 
| 23.564 || 121.539 || 22.2 || 7.0 || Mw  
 
|-
 
|-
−
}
+
|}
  
 
==Aftershocks==
 
==Aftershocks==
 
Relocated mainshock and aftershocks
 
Relocated mainshock and aftershocks
−
From 蔣(1984)
+
From [https://drive.google.com/file/d/1tPKn94ygfduuw55VrTL3THeqiuzKenM0/view?usp=sharing 蔣(1984)]
  
 
{| class="wikitable"
 
{| class="wikitable"
Line 84: Line 87:
 
|}
 
|}
  
−
From 詹(1985)
+
From [https://drive.google.com/file/d/15VLc-914uImvk8bSJ_3MwWxLjsRBknGO/view?usp=sharing 詹(1985)]
 
{| class="wikitable"
 
{| class="wikitable"
 
! 地震編號 !! 緯度(N) !! 經度(E) !! 深度(km) !! 規模(Mcw) !! 年 !! 月 !! 日 !! 時 !! 分 !! 秒
 
! 地震編號 !! 緯度(N) !! 經度(E) !! 深度(km) !! 規模(Mcw) !! 年 !! 月 !! 日 !! 時 !! 分 !! 秒
Line 138: Line 141:
 
! Q
 
! Q
 
| 23.76 || 121.37 || 9.96 || 4.25 || 72 || 5 || 25 || 2 || 38 || 46.12
 
| 23.76 || 121.37 || 9.96 || 4.25 || 72 || 5 || 25 || 2 || 38 || 46.12
 +
|}
 +
 +
from 中央氣象局 [http://photino.cwb.gov.tw/rdcweb/lib/cd/cd07mb/MB/PDF/19/No.3/06.pdf/ 民國六十一年台灣地區的地震活動和蘇俄科學家預測發生大海嘯的可能性]
 +
{| class="wikitable"
 +
| align="center" style="background:#f0f0f0;"|'''地震編號'''
 +
| align="center" style="background:#f0f0f0;"|'''緯度(N)'''
 +
| align="center" style="background:#f0f0f0;"|'''經度(E)'''
 +
| align="center" style="background:#f0f0f0;"|'''深度(km)'''
 +
| align="center" style="background:#f0f0f0;"|'''規模(M)'''
 +
| align="center" style="background:#f0f0f0;"|'''年'''
 +
| align="center" style="background:#f0f0f0;"|'''月'''
 +
| align="center" style="background:#f0f0f0;"|'''日'''
 +
| align="center" style="background:#f0f0f0;"|'''時'''
 +
| align="center" style="background:#f0f0f0;"|'''分'''
 +
|-
 +
| 1||22.5||122.3||55||6.7||1972||1||4||11||17
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|-
 +
| 2||22.4||122.2||40||5.1||1972||1||4||20||15
 +
|-
 +
| 3||20.9||120.2||90||6.5||1972||1||8||13||28
 +
|-
 +
| 4||24.1||122||40||5||1972||1||14||21||34
 +
|-
 +
| 5||22.5||122.3||70||7.3||1972||1||25||10||6
 +
|-
 +
| 6||23||122.3||40||7.1||1972||1||25||11||41
 +
|-
 +
| 7||24.4||120.3||15||5.3||1972||2||12||9||7
 +
|-
 +
| 8||24.5||121.9||50||5.4||1972||2||21||17||42
 +
|-
 +
| 9||22.4||122.1||35||5.6||1972||3||7||14||20
 +
|-
 +
| 10||24.1||122.5||40||4.8||1972||3||19||21||33
 +
|-
 +
| 11||23.9||121.9||50||6.3||1972||4||17||18||49
 +
|-
 +
| 12||24.4||122.5||30||5.2||1972||4||17||19||2
 +
|-
 +
| 13||23.8||122.4||25||5.6||1972||4||21||21||21
 +
|-
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| 14||23.5||121.5||3||7||1972||4||24||17||57
 +
|-
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| 15||23.5||121.3||5||5.1||1972||4||24||18||15
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|-
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| 16||23.6||121.3||5||4.7||1972||4||24||19||19
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|-
 +
| 17||23.6||121.4||5||5.6||1972||4||24||19||32
 +
|-
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| 18||23.6||121.6||20||5.5||1972||4||24||20||0
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|-
 +
| 19||23.6||121.9||10||5||1972||4||24||20||22
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|-
 +
| 20||23.5||121.4||10||5||1972||4||25||1||30
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|-
 +
| 21||23.8||121.6||7.5||5.7||1972||4||25||1||58
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|-
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| 22||23.6||121.4||5||4.8||1972||4||25||3||59
 +
|-
 +
| 23||23.8||121.3||5||5.1||1972||4||25||7||28
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|-
 +
| 24||23.6||121.4||10||5.1||1972||4||27||7||48
 +
|-
 +
| 25||23.9||122.2||30||5.2||1972||4||28||3||21
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|-
 +
| 26||23.7||121.8||30||5.4||1972||5||2||4||1
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|-
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| 27||23.1||121.2||10||5.5||1972||5||5||18||16
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|-
 +
| 28||24.2||121.7||15||6||1972||5||12||9||21
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|-
 +
| 29||23.7||121.5||30||5.2||1972||5||22||20||32
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|-
 +
| 30||24.2||121.5||10||5.3||1972||7||1||2||57
 +
|-
 +
| 31||23.6||121.3||15||4.8||1972||7||13||21||11
 +
|-
 +
| 32||23.7||121.1||5||5.1||1972||7||16||21||48
 +
|-
 +
| 33||23.5||121.9||25||5.2||1972||8||1||1||4
 +
|-
 +
| 34||23.5||121.8||15||4.9||1972||8||31||9||13
 +
|-
 +
| 35||24.6||122.7||40||5.3||1972||9||2||10||8
 +
|-
 +
| 36||22.5||120.9||15||6.5||1972||9||23||3||57
 +
|-
 +
| 37||22||121.4||45||6.6||1972||9||23||10||14
 +
|-
 +
| 38||22.7||121.4||30||5.3||1972||9||24||14||44
 +
|-
 +
| 39||22.6||121.3||20||5.2||1972||9||24||21||9
 +
|-
 +
| 40||22.2||121.2||30||5.9||1972||9||28||1||54
 +
|-
 +
| 41||24.3||121.8||20||5||1972||9||29||12||28
 +
|-
 +
| 42||22.3||121.4||25||5.3||1972||10||6||23||52
 +
|-
 +
| 43||22.3||121.1||20||5.4||1972||10||21||12||16
 +
|-
 +
| 44||22.8||120.8||20||5.3||1972||11||7||14||40
 +
|-
 +
| 45||23.9||121.5||2||5.7||1972||11||8||22||25
 +
|-
 +
| 46||23.9||121.3||10||6.5||1972||11||10||2||41
 +
|-
 +
| 47||23.9||121.8||20||6||1972||11||21||10||47
 +
|-
 +
| 48||23.9||121.4||5||5.5||1972||11||21||10||51
 +
|-
 +
| 49||23.2||120.4||10||5.4||1972||12||22||9||35
 +
|-
 +
| 50||23.4||121.6||35||4.8||1972||12||30||5||3
 
|}
 
|}
  

Latest revision as of 02:52, 6 October 2021

  • Need to have a map showing the 1951 earthquake sequences and the 1972 earthquake sequences, and the potential location of the 1972 surface rupture
  • Macroseismic map of this earthquake clearly shows the rupture fault was propagating northward, with unilateral rupture. This is coincide to the aftershock distribution from previous studies.
  • No surface rupture can be found in the field, based on the interview results and the aerial photo investigation

Mainshock magnitude

  • It is important to find out what is the magnitude of the mainshock. The magnitude from global catalog is listed below
Source 緯度(N) 經度(E) 深度(km) 規模 Type
NEIC 23.6 121.60 33 7.2 Ms
ISCGEM 23.564 121.539 22.2 7.0 Mw

Aftershocks

Relocated mainshock and aftershocks From 蔣(1984)

地震編號 緯度(N) 經度(E) 深度(km) 規模(mb) 年 月 日 時 分 秒
A 23.59 121.54 29.3 6.1 72 4 24 17 57 22.06
B 23.48 121.39 39.7 5.2 72 4 24 19 32 12.65
C 23.52 121.4 52.5 5.1 72 4 24 20 0 34.81
D 23.62 121.49 32.7 4.8 72 4 24 20 22 43.58
E 23.57 121.41 8.6 72 4 24 20 45 41.19
F 23.71 121.66 42.8 72 4 25 1 30 35.69
G 23.78 121.58 26 5.4 72 4 25 1 58 31.91
H 23.88 121.5 42.7 4.7 72 4 25 3 30 29.68
I 23.92 121.36 11.6 72 4 25 3 44 5.12
J 23.94 121.34 16.2 4.3 72 4 25 3 59 49.68
K 23.75 121.74 16.4 72 4 25 4 34 18.8
L 23.58 121.61 48.4 4.7 72 4 25 7 27 57.24
M 23.85 121.31 28.5 4.6 72 4 27 7 48 28.18
N 23.8 121.56 27.1 72 4 27 22 26 28.38
O 23.9 121.55 33.7 4.8 72 5 2 4 1 21.3
P 23.68 121.08 16.4 72 5 6 16 59 21.34
Q 23.86 121.26 26.1 72 5 25 2 38 48.12
R 23.61 121.7 3 4.5 72 8 1 1 4 44
S 23.9 121.6 36 5.5 72 11 8 22 25 46.5
T 23.95 121.28 22 5.9 72 11 10 2 41 14.5
U 23.87 121.66 27 5.5 72 11 21 10 47 16.4

From 詹(1985)

地震編號 緯度(N) 經度(E) 深度(km) 規模(Mcw) 年 月 日 時 分 秒
A 23.51 121.53 15.42 6.38 72 4 24 17 57 22.01
B 23.52 121.31 1.82 5.51 72 4 24 19 32 11.37
C 23.49 121.25 5.83 4.92 72 4 24 20 0 32.77
D 23.6 121.57 22.05 4.68 72 4 24 20 22 42.35
E 23.62 121.34 3.12 4.24 72 4 24 20 45 42.56
F 23.71 121.55 23.94 4.47 72 4 25 1 30 34.48
G 23.69 121.62 26.12 5.47 72 4 25 1 58 31.55
H 23.65 121.62 25.69 4.4 72 4 25 3 30 24.59
I 23.65 121.58 0.51 4.01 72 4 25 3 44 2.81
J 23.75 121.5 22 4.29 72 4 25 3 59 48.78
K 23.74 121.46 17.26 4.26 72 4 25 4 34 19.88
L 23.58 121.5 21.97 4.37 72 4 25 7 27 55.94
M 23.76 121.29 0.85 4.84 72 4 27 7 48 25.57
N 23.78 121.56 0.98 4.26 72 4 27 22 26 26.51
O 23.78 121.57 0.69 5.16 72 5 2 4 1 18.32
P 23.62 121.32 8.37 4.24 72 5 6 16 59 16.93
Q 23.76 121.37 9.96 4.25 72 5 25 2 38 46.12

from 中央氣象局 民國六十一年台灣地區的地震活動和蘇俄科學家預測發生大海嘯的可能性

地震編號 緯度(N) 經度(E) 深度(km) 規模(M) 年 月 日 時 分
1 22.5 122.3 55 6.7 1972 1 4 11 17
2 22.4 122.2 40 5.1 1972 1 4 20 15
3 20.9 120.2 90 6.5 1972 1 8 13 28
4 24.1 122 40 5 1972 1 14 21 34
5 22.5 122.3 70 7.3 1972 1 25 10 6
6 23 122.3 40 7.1 1972 1 25 11 41
7 24.4 120.3 15 5.3 1972 2 12 9 7
8 24.5 121.9 50 5.4 1972 2 21 17 42
9 22.4 122.1 35 5.6 1972 3 7 14 20
10 24.1 122.5 40 4.8 1972 3 19 21 33
11 23.9 121.9 50 6.3 1972 4 17 18 49
12 24.4 122.5 30 5.2 1972 4 17 19 2
13 23.8 122.4 25 5.6 1972 4 21 21 21
14 23.5 121.5 3 7 1972 4 24 17 57
15 23.5 121.3 5 5.1 1972 4 24 18 15
16 23.6 121.3 5 4.7 1972 4 24 19 19
17 23.6 121.4 5 5.6 1972 4 24 19 32
18 23.6 121.6 20 5.5 1972 4 24 20 0
19 23.6 121.9 10 5 1972 4 24 20 22
20 23.5 121.4 10 5 1972 4 25 1 30
21 23.8 121.6 7.5 5.7 1972 4 25 1 58
22 23.6 121.4 5 4.8 1972 4 25 3 59
23 23.8 121.3 5 5.1 1972 4 25 7 28
24 23.6 121.4 10 5.1 1972 4 27 7 48
25 23.9 122.2 30 5.2 1972 4 28 3 21
26 23.7 121.8 30 5.4 1972 5 2 4 1
27 23.1 121.2 10 5.5 1972 5 5 18 16
28 24.2 121.7 15 6 1972 5 12 9 21
29 23.7 121.5 30 5.2 1972 5 22 20 32
30 24.2 121.5 10 5.3 1972 7 1 2 57
31 23.6 121.3 15 4.8 1972 7 13 21 11
32 23.7 121.1 5 5.1 1972 7 16 21 48
33 23.5 121.9 25 5.2 1972 8 1 1 4
34 23.5 121.8 15 4.9 1972 8 31 9 13
35 24.6 122.7 40 5.3 1972 9 2 10 8
36 22.5 120.9 15 6.5 1972 9 23 3 57
37 22 121.4 45 6.6 1972 9 23 10 14
38 22.7 121.4 30 5.3 1972 9 24 14 44
39 22.6 121.3 20 5.2 1972 9 24 21 9
40 22.2 121.2 30 5.9 1972 9 28 1 54
41 24.3 121.8 20 5 1972 9 29 12 28
42 22.3 121.4 25 5.3 1972 10 6 23 52
43 22.3 121.1 20 5.4 1972 10 21 12 16
44 22.8 120.8 20 5.3 1972 11 7 14 40
45 23.9 121.5 2 5.7 1972 11 8 22 25
46 23.9 121.3 10 6.5 1972 11 10 2 41
47 23.9 121.8 20 6 1972 11 21 10 47
48 23.9 121.4 5 5.5 1972 11 21 10 51
49 23.2 120.4 10 5.4 1972 12 22 9 35
50 23.4 121.6 35 4.8 1972 12 30 5 3

Ground deformations

  • Mostly associated to the landslides and the slope failures.
  • A more-than-2-km-long fissure is interesting.
  • No clear evidence of surface rupture at the base of the coastal range.
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