Preliminary
Earthquake Report – Kahak, Southern Qom, ML=5.6
(2007-06-18)
An earthquake with a
magnitude of (ML=5.6) occurred about 12 kilometers south of Qom near the faults
trends with a northwest-southeast bearing at 17:59:50 local time on Monday, June
18, 2007. According to the recorded seismograms of the IIEES Iranian National
Seismic Network (INSN), the epicenter of the earthquake was located at 34.52º N
and 50.86º E.
The earthquake was perceptible in Qom, Tehran, Isfahan, Markazi, Semnan, Yazd,
Qazvin and Mazandaran provinces. The shaking was obviously perceived in
northern Tehran especially in the upper floors of the buildings. The event was
recorded by 15 INSN stations. The preliminary estimated depth of the earthquake
is 17 kilometers.
More than 10 aftershocks are recorded with maximum magnitude of ML=3.3 by
19:20. The highest intensity of the earthquake has been reported in Kahak region
of Qom province as of this writing.
The seismicity history of the region (Table 1), map of epicentral region (Fig.
1), the waveforms recorded by INSN (Fig. 2), the seismicity map of the region
(Fig. 3) are presented underneath:
Figure 1: Map
of epicentral region
Figure 2: The
waveforms recorded by INSN
Table 1: The seismicity history of the region
|
Date(yyyy/mm/dd) |
Time(UTC) |
Latitude |
Longitude |
Depth |
Magnitude |
Reference |
|
02:04:16.0 |
34 |
50 |
|
Mb:4.7 |
BCIS |
|
|
02:58:22.1 |
35.10 |
50.20 |
21 |
Mb:5.3 |
USCGS |
|
|
07:57:53.3 |
35.20 |
50.70 |
14 |
Mb:4.9 |
USCGS |
|
|
21:50:10.3 |
34.60 |
50.30 |
31 |
Mb:4.4 |
USCGS |
|
|
09:06:16.5 |
34.60 |
50.30 |
42 |
Mb:4.7 |
USCGS |
|
|
01:16:56.0 |
34.5870 |
50.6520 |
33 |
Ms:5.8 |
USCGS |
|
|
12:51:21.0 |
34.5030 |
50.59 |
41 |
Mb:5.5 |
USCGS |
|
|
17:20:49.5 |
34.7660 |
50.7450 |
21 |
Mb:4.2 |
USCGS |
|
|
15:54:24.5 |
34.63 |
51.02 |
33 |
Mb:4.4 |
USCGS |
|
|
09:26:45.9 |
34.56 |
50.6770 |
51 |
Mb:4.7 |
USCGS |
|
|
01:02:02.9 |
34.4860 |
50.8180 |
15 |
Mb:4.3 |
USCGS |
|
|
22:30:18.1 |
34.90 |
50.46 |
33 |
Mb:3.9 |
USCGS |
|
|
18:36:21.9 |
35.12 |
50.72 |
10 |
|
USCGS |
|
|
19:42:37.9 |
35.2980 |
50.7440 |
5 |
|
USCGS |
|
|
01:34:06.8 |
34.49 |
51.34 |
10 |
|
USCGS |
|
|
05:44:52.7 |
35.2530 |
51.0590 |
10 |
|
USCGS |
|
|
00:04:41.60 |
34.60 |
51.43 |
10 |
ML:2.9 |
IIEES |
|
|
03:14:15.20 |
34.77 |
50.46 |
10 |
ML:2.7 |
IIEES |
|
|
22:29:05.40 |
34.23 |
51.79 |
10 |
Mb:3.3 |
IIEES |
|
|
20:45:43.3 |
34.44 |
51.10 |
13 |
ML:3.7 |
IIEES |
|
|
20:04:57.3 |
34.37 |
50.88 |
15 |
ML:3.2 |
IIEES |
|
|
19:30:50.2 |
34.30 |
49.97 |
33 |
ML:3.8 |
IIEES |
|
|
07:56:01.6 |
35.22 |
51.42 |
15 |
Mb:3.3 |
IIEES |
|
|
03:49:59.8 |
34.91 |
50.72 |
15 |
ML:4.5 |
IIEES |
|
|
00:23:16.6 |
34.86 |
50.65 |
15 |
ML:2.3 |
IIEES |
|
|
16:57:00.3 |
34.30 |
49.90 |
8 |
ML:3.1 |
IIEES |
|
|
17:58:25.2 |
34.24 |
49.89 |
4 |
ML:3.4 |
IIEES |
|
|
17:17:26.5 |
34.84 |
50.54 |
15 |
ML:2 |
IIEES |
|
|
09:06:54.4 |
34.28 |
51.43 |
15 |
ML:2.9 |
IIEES |
|
|
00:15:31.5 |
34.88 |
50.22 |
15 |
ML:2.8 |
IIEES |
|
|
22:20:11.7 |
34.69 |
50.52 |
18 |
ML:3.8 |
IIEES |
|
|
05:19:36.1 |
34.73 |
51.77 |
10 |
ML:2.3 |
IIEES |
|
|
13:23:23.0 |
34.11 |
51.79 |
15 |
ML:2.7 |
IIEES |
|
|
12:27:07.1 |
34.32 |
51.20 |
18 |
ML:2 |
IIEES |
|
|
17:37:36.4 |
34.29 |
51.04 |
34 |
ML:2.3 |
IIEES |
|
|
12:48:54.7 |
35.01 |
50.05 |
14 |
ML:4.3 |
IIEES |
|
|
03:31:02.9 |
34.92 |
50.11 |
14 |
ML:2.4 |
IIEES |
|
|
17:33:00.8 |
34.47 |
51.09 |
14 |
ML:3.5 |
IIEES |
|
|
09:56:53.5 |
35.17 |
51.57 |
14 |
ML:2.8 |
IIEES |
|
|
23:57:05.2 |
34.66 |
51.68 |
18 |
ML:3.1 |
IIEES |
|
|
00:58:44.4 |
34.75 |
50.37 |
15 |
ML:3.4 |
IIEES |
|
|
10:42:52.5 |
34.60 |
50.48 |
14 |
ML:3.7 |
IIEES |
|
|
10:46:43.4 |
34.70 |
50.42 |
14 |
ML:2.9 |
IIEES |
|
|
10:39:39.4 |
35.25 |
51.05 |
17 |
ML:2.8 |
IIEES |
|
|
09:37:26.9 |
34.91 |
49.94 |
14 |
ML:2.9 |
IIEES |
|
|
22:49:14.1 |
34.90 |
51.28 |
15 |
ML:2.5 |
IIEES |
|
|
05:46:35.8 |
34.07 |
51.47 |
14 |
ML:2.8 |
IIEES |
|
|
13:31:19.6 |
34.88 |
50.14 |
14 |
ML:3.5 |
IIEES |
|
|
18:18:57.0 |
34.51 |
51.32 |
14 |
ML:2.5 |
IIEES |
|
|
02:12:13.2 |
35.37 |
50.99 |
15 |
ML:3.4 |
IIEES |
|
|
21:26:43.5 |
35.28 |
50.47 |
28 |
ML:2.7 |
IIEES |
|
|
15:13:18.5 |
34.61 |
50.64 |
14 |
ML:2.9 |
IIEES |
|
|
21:30:46.5 |
34.67 |
51.38 |
17 |
ML:2.5 |
IIEES |
|
|
10:22:28.1 |
34.53 |
51.81 |
18 |
ML:2.6 |
IIEES |
|
|
17:13:36.3 |
34.93 |
49.96 |
14 |
ML:2.2 |
IIEES |
|
|
01:21:29.2 |
34.50 |
51.36 |
6 |
ML:1.2 |
IIEES |
|
|
14:29:49.5 |
34.53 |
50.84 |
17 |
ML:5.7 |
IIEES |
|
|
14:51:51.8 |
34.55 |
50.82 |
18 |
ML:3.3 |
IIEES |
Figure 3: The seismicity map of the region