Gamma Ray and Radon Anomalies in Northern Taiwan as a Possible Preearthquake Indicator around the Plate Boundary
Table 2
Catalog of gamma ray and radon anomalies and related earthquakes occurring in Taiwan from July 1, 2014, to June 1, 2015.
No.1
Date
Long. (°E)
Lat. (°N)
Mag. ()
Depth (km)
Distance (km)
2 (day)
2 (day)
Type
1
2014/7/8 07:06
122.41
23.29
5.2
38.8
224
None
None
—
2
2014/7/17 14:11
121.36
22.25
5.3
19.1
322
None
None
—
3
2014/8/6 11:46
121.46
22.23
5.1
84.2
324
None
None
—
4
2014/9/21 05:14
121.54
23.59
5
31.5
173
21
None
C
5
2014/9/25 18:35
121.3
22.74
5.3
18
269
None
None
—
6
2014/10/8 02:08
121.56
23.65
5.2
33.4
167
15
10
C
7
2014/10/26 12:47
122.23
24.75
5
86.0
81
8
3
W
8
2014/11/20 01:46
122.02
24.89
5.2
13.9
55
17
17
O
9
2014/11/21 11:29
120.13
20.65
5.8
71.3
520
None
None
—
10
2014/12/11 05:03
122.17
25.7
6.7
268.6
86
23
14
W
11
2014/12/31 11:06
121.79
24.89
5.1
68.9
37
None
20
W
12
2014/12/31 15:54
122.6
24.55
5.6
96.1
125
None
20
W
13
2015/1/5 13:53
122.04
24.74
5.1
73.8
67
None
20
L
14
2015/1/7 12:48
121.7
24.26
5.5
30.4
100
None
Unknown
C
15
2015/1/19 11:48
121.57
22.76
5
117.9
265
None
None
—
16
2015/2/14 04:06
121.46
22.66
6.3
27.8
276
None
None
—
17
2015/2/27 00:50
122.29
24.68
5.3
97.6
90
13
11
L
18
2015/3/23 18:13
121.76
23.7
6.2
38.4
162
9
None
C
19
2015/4/6 19:37
122.75
24.4
5.4
79.4
146
None
None
—
20
2015/4/20 09:42
122.37
24.05
6.4
30.6
147
21
12
I
21
2015/4/20 09:49
122.49
24.02
5
30.7
157
21
12
I
22
2015/4/20 19:20
121.75
23.63
5.5
38.3
170
Unknown
Unknown
C
23
2015/4/20 19:45
122.41
24.12
6.2
33.9
143
21
12
I
24
2015/4/20 19:59
122.39
24.01
6
29.4
152
21
12
I
25
2015/4/26 04:01
122.44
24.03
5.7
34.8
153
Unknown
Unknown
—
26
2015/5/3 21:09
122.42
23.94
5
24.8
160
None
None
—
27
2015/5/26 08:56
122.49
23.87
5
28.9
171
7
6
I
a
2014/7/26 00:43
122.11
24.92
4
101
61
None
4
—
b
2014/8/1 12:38
121.6
24.58
4
6.1
64
None
3
—
c
2014/8/5 08:34
121.67
24.4
3.6
38
84
None
3
—
d
2014/8/16 02:51
121.53
24.92
3.8
84
26
None
7
—
e
2014/8/17 06:52
121.04
24.72
2.3
6.2
71
3
None
—
f
2014/8/24 20:39
122.09
24.3
4
57.5
109
None
6
—
g
2014/10/19 17:50
121.1
24.68
2.9
6
70
4
None
—
h
2014/11/18 07:22
121.56
25.16
2.8
2.5
1
None
2
—
i
2015/5/7 04:04
121.33
24.1
4.4
68
119
None
4
—
j
2015/5/9 20:32
121.23
24.66
3.5
10
64
1
None
—
1The label of relevant earthquakes marked in Figures 1 and 4. 2The time difference between the start time of an anomaly and the earthquake event. “Unknown” indicates that the relationship between an anomaly and the earthquake cannot be identified.
