Light mag. 4.0 earthquake - South Pacific Ocean, 72 km north of La Serena, Provincia de Elqui, Coquimbo Region, Chile, on Tuesday, Sep 28, 2021 8:06 am (GMT -3) -

Quakes around its antipode during the following 3 days
Check different time intervals: 24 hours | 2 days
Date & time: 28 Sep 2021 11:06:01 UTC -
Local time at epicenter: Tuesday, Sep 28, 2021 8:06 am (GMT -3)
Magnitude: 4
Depth: 50 km
Epicenter latitude / longitude: 29.43°S / 71.27°W (Provincia de Elqui, Coquimbo Region, Chile)
Antipode latitude / longitude: 29.43°N / 108.73°E (China)
Primary data source: EMSC (European-Mediterranean Seismological Centre)
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Quakes within 30 degrees from seismic antipode up to 3 days after the quake

The area around the antipode is marked with the big circle on the map.
The total number of quakes that occurred within 3 days around the antipode of the quake was 50. This is compared to the average number of 58.03 quakes during preceding intervals of 3 days with a standard deviation (σ) of 27.6, calculated by analzing all 100 preceding intervals of 3 days for the same region.
Interpretation:
Note: At a magnitude of 4.0, it is unlikely that this quake could affect areas around its antipode. If an increase or decrease of quake is detected, it is likely caused by other factors.
There is no significant variation in the number of quakes that occurred around the antipode within 3 days.
Mag classTotal #AverageσObserved deviation
6+10.10.30.9 (3.2σ)
5+01.82.5-1.8 (-0.7σ)
4+1118.210.3-7.2 (-0.7σ)
3+3837.918.90.1 (0σ)
Total5058.0327.6-8 (-0.3σ)
Explanation:
BLACK = Number of quakes within normal statistical range
RED = Significantly lower than normal number of quakes
GREEN = Significantly higher than normal number of quakes

List of quakes

Filter by magnitude:
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3.0+
4.0+
5.0+
6.0+
Showing quakes magnitude 3.0 or higher (total: 50).
Date and timeMag
Depth
LocationDetails
28 Sep 2021 11:10:01 GMT
(4 minutes after quake)
4.9

10 km
284 km south of Kumul, Xinjiang, China [Show on map]More
28 Sep 2021 13:15:30 GMT
(2 hours and 9 minutes after quake)
4.3

10 km
Xinjiang, 50 km southwest of Druzhba, Alakol District, Almaty Oblysy, Kazakhstan [Show on map]More
28 Sep 2021 13:48:38 GMT
(2 hours and 43 minutes after quake)
4.3

10 km
58 km north of Baijiantan, Xinjiang, China [Show on map]More
28 Sep 2021 14:37:53 GMT
(4 hours after quake)
3.7

371 km
Philippine Sea, 43 km southwest of Hamamatsu, Shizuoka, Japan [Show on map]More
28 Sep 2021 14:54:40 GMT
(4 hours after quake)
3.5

10 km
Kazakhstan, 102 km northeast of Huocheng, Ili Kazak Zizhizhou, Xinjiang, China [Show on map]More
28 Sep 2021 17:57:47 GMT
(7 hours after quake)
3.5

10 km
100 km southeast of Kucha, Xinjiang, China [Show on map]More
28 Sep 2021 19:52:00 GMT
(9 hours after quake)
3.5

9 km
South China Sea, 78 km northeast of Claveria, Philippines [Show on map]More
28 Sep 2021 20:45:00 GMT
(10 hours after quake)
3.5

10 km
111 km southeast of Qapqal, Ili Kazak Zizhizhou, Xinjiang, China [Show on map]More
28 Sep 2021 21:12:53 GMT
(10 hours after quake)
3.3

10 km
74 km east of Qapqal, Ili Kazak Zizhizhou, Xinjiang, China [Show on map]More
29 Sep 2021 00:43:09 GMT
(14 hours after quake)
3.5

418 km
4.5 km southwest of Bomdila, West Kameng, Arunachal Pradesh, India [Show on map]More
29 Sep 2021 03:34:10 GMT
(16 hours after quake)
4.3

10 km
Xizang, China [Show on map]More
29 Sep 2021 05:22:05 GMT
(18 hours after quake)
3.3

10 km
49 km west of Druzhba, Alakol District, Almaty Oblysy, Kazakhstan [Show on map]More
29 Sep 2021 05:27:23 GMT
(18 hours after quake)
3.8

10 km
63 km southeast of Kucha, Xinjiang, China [Show on map]More
29 Sep 2021 06:04:30 GMT
(19 hours after quake)
3.2

30 km
5.9 km south of Toyohashi-shi, Aichi, Japan [Show on map]More
29 Sep 2021 06:37:00 GMT
(20 hours after quake)
3.3

8 km
Philippine Sea, 38 km northeast of Catarman, Philippines [Show on map]More
29 Sep 2021 08:37:05 GMT
(22 hours after quake)
6.1

366 km
Japan Sea, 269 km northwest of Kanazawa, Ishikawa, Japan [Show on map]More
29 Sep 2021 08:58:17 GMT
(22 hours after quake)
3.8

10 km
70 km northeast of Qapqal, Ili Kazak Zizhizhou, Xinjiang, China [Show on map]More
29 Sep 2021 10:42:44 GMT
(24 hours after quake)
3.5

5 km
8.3 km east of Udalguri, Assam, India [Show on map]More
29 Sep 2021 12:00:03 GMT
(1 day 1 hours after quake)
3.7

10 km
Kazakhstan, 119 km north of Xinyuan, Xinjiang, China [Show on map]More
29 Sep 2021 12:03:40 GMT
(1 day 1 hours after quake)
3.4

10 km
29 km north of Aral, Xinjiang, China [Show on map]More
29 Sep 2021 12:10:43 GMT
(1 day 1 hours after quake)
3.9

10 km
230 km northeast of Urumaci, Xinjiang, China [Show on map]More
29 Sep 2021 13:24:23 GMT
(1 day 2 hours after quake)
3.0

100 km
East China Sea, 95 km south of Kuchinoerabu-jima Island, Kagoshima, Japan [Show on map]More
29 Sep 2021 14:39:47 GMT
(1 day 4 hours after quake)
3.6

8 km
9.7 km west of Gotenba, Shizuoka, Japan [Show on map]More
29 Sep 2021 15:16:09 GMT
(1 day 4 hours after quake)
3.1

10 km
139 km northwest of Jinghong, Yunnan, China [Show on map]More
29 Sep 2021 15:18:53 GMT
(1 day 4 hours after quake)
3.3

10 km
130 km northwest of Jinghong, Yunnan, China [Show on map]More
29 Sep 2021 16:55:36 GMT
(1 day 6 hours after quake)
3.8

378 km
3.8 km west of Kameoka, Kyoto, Japan [Show on map]More
29 Sep 2021 17:19:00 GMT
(1 day 6 hours after quake)
3.0

1 km
5.3 km north of Agoo, Pangasinan, Ilocos, Philippines [Show on map]More
29 Sep 2021 20:58:16 GMT
(1 day 10 hours after quake)
3.4

170 km
Minamikyushu Shi, 34 km southwest of Kagoshima, Japan [Show on map]More
29 Sep 2021 21:04:47 GMT
(1 day 10 hours after quake)
3.5

46 km
23 km southeast of Churāchāndpur, Churachandpur, Manipur, India [Show on map]More
29 Sep 2021 22:14:41 GMT
(1 day 11 hours after quake)
4.5

137 km
East China Sea, 165 km north of Naha, Okinawa, Japan [Show on map]More
29 Sep 2021 22:36:00 GMT
(1 day 11 hours after quake)
3.1

12 km
Province of Tarlac, 18 km west of Santol, Pampanga, Central Luzon, Philippines [Show on map]More
30 Sep 2021 05:16:30 GMT
(1 day 18 hours after quake)
3.5

40 km
East China Sea, 77 km southwest of Naze, Amami Shi, Kagoshima, Japan [Show on map]More
30 Sep 2021 08:36:38 GMT
(1 day 22 hours after quake)
3.3

20 km
19 km north of Dapa, Province of Surigao del Norte, Caraga, Philippines [Show on map]More
30 Sep 2021 08:47:08 GMT
(1 day 22 hours after quake)
4.7

30 km
South China Sea, 38 km northeast of Aparri, Philippines [Show on map]More
30 Sep 2021 10:52:54 GMT
(1 day 24 hours after quake)
3.2

27 km
East China Sea, 87 km southwest of Naze, Amami Shi, Kagoshima, Japan [Show on map]More
30 Sep 2021 13:05:40 GMT
(2 days after quake)
4.3

146 km
Andaman Islands, India Region [Show on map]More
30 Sep 2021 13:19:57 GMT
(2 days after quake)
3.2

30 km
Philippine Sea, 95 km southeast of Miyanoura, Kumage-gun, Kagoshima, Japan [Show on map]More
30 Sep 2021 15:40:49 GMT
(2 days after quake)
3.0

98 km
South China Sea, 36 km north of Mamburao, Philippines [Show on map]More
30 Sep 2021 16:54:00 GMT
(2 days after quake)
3.6

42 km
South China Sea, 88 km north of Santa Ana, Philippines [Show on map]More
30 Sep 2021 17:19:51 GMT
(2 days after quake)
3.1

15 km
Taplejung, Province 1, 86 km northwest of Darjeeling, West Bengal, India [Show on map]More
30 Sep 2021 17:36:00 GMT
(2 days after quake)
3.1

4 km
South China Sea, 84 km northeast of Aparri, Philippines [Show on map]More
30 Sep 2021 19:38:35 GMT
(2 days after quake)
3.1

23 km
Philippine Sea, 40 km east of Nichinan, Miyazaki, Japan [Show on map]More
30 Sep 2021 20:49:13 GMT
(2 days after quake)
3.1

227 km
Philippine Sea, 73 km south of Shizuoka, Japan [Show on map]More
30 Sep 2021 22:04:37 GMT
(2 days after quake)
3.1

9.7 km
12 km northeast of Tsirang, Bhutan [Show on map]More
30 Sep 2021 23:09:47 GMT
(3 days after quake)
4.9

10 km
30 km northeast of Medininagar, Palamau, Jharkhand, India [Show on map]More
1 Oct 2021 01:23:00 GMT
(3 days after quake)
3.1

1 km
38 km north of Laoag, Province of Ilocos Norte, Philippines [Show on map]More
1 Oct 2021 03:49:29 GMT
(3 days after quake)
4.8

41 km
235 km west of Chamdo, Tibet, China [Show on map]More
1 Oct 2021 04:57:31 GMT
(3 days after quake)
3.8

10 km
Hkamti District, Myanmar (Burma), 97 km southeast of Zunheboto, India [Show on map]More
1 Oct 2021 06:20:31 GMT
(3 days after quake)
4.3

10 km
32 km east of Kānker, Kanker, Chattisgarh, India [Show on map]More
1 Oct 2021 07:09:30 GMT
(3 days after quake)
4.2

10 km
Sindhupalchowk, 59 km east of Kathmandu, Bagmati Province, Nepal [Show on map]More
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