Light mag. 3.7 earthquake - Nagaon district, 16 km southeast of Morigaon, Assam, India, on Saturday, Oct 23, 2021 7:34 pm (GMT +5:30) -

Quakes around its antipode during the following 3 days
Check different time intervals: 24 hours | 2 days
Date & time: 23 Oct 2021 14:04:52 UTC -
Local time at epicenter: Saturday, Oct 23, 2021 7:34 pm (GMT +5:30)
Magnitude: 3.7
Depth: 10 km
Epicenter latitude / longitude: 26.13°N / 92.43°E (Nagaon district, Assam, India)
Antipode latitude / longitude: 26.13°S / 87.57°W
Primary data source: NCS (National Center for Seismology)
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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 48. This is compared to the average number of 0.25 quakes during preceding intervals of 3 days with a standard deviation (σ) of 5.4, calculated by analzing all 100 preceding intervals of 3 days for the same region.
Interpretation:
Note: At a magnitude of 3.7, 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 a weak increase in detected quakes around the antipode during the following 3 days.
Mag classTotal #AverageσObserved deviation
6+000n/a
5+100.11 (7σ)
4+100.11.29.9 (8.5σ)
3+370.24.136.8 (8.9σ)
Total480.255.447.8 (8.8σ)
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:
all
3.0+
4.0+
5.0+
Showing quakes magnitude 3.0 or higher (total: 48).
Date and timeMag
Depth
LocationDetails
23 Oct 2021 15:25:04 GMT
(1 hour and 20 minutes after quake)
3.4

95 km
SAN LUIS (Argentina) [Show on map]More
23 Oct 2021 16:34:53 GMT
(2 hours and 30 minutes after quake)
4.0

27 km
NEAR COAST OF SOUTHERN PERU [Show on map]More
23 Oct 2021 18:59:22 GMT
(5 hours after quake)
3.0

10 km
SAN JUAN (Argentina) [Show on map]More
23 Oct 2021 19:43:39 GMT
(6 hours after quake)
4.1

123 km
ANTOFAGASTA, CHILE [Show on map]More
24 Oct 2021 00:04:15 GMT
(10 hours after quake)
3.1

192 km
SALTA (Argentina) [Show on map]More
24 Oct 2021 02:05:18 GMT
(12 hours after quake)
3.4

138 km
ANTOFAGASTA, CHILE [Show on map]More
24 Oct 2021 02:55:48 GMT
(13 hours after quake)
3.1

53 km
ANTOFAGASTA, CHILE [Show on map]More
24 Oct 2021 05:09:07 GMT
(15 hours after quake)
3.4

176 km
SALTA (Argentina) [Show on map]More
24 Oct 2021 05:10:06 GMT
(15 hours after quake)
4.0

109 km
SAN JUAN (Argentina) [Show on map]More
24 Oct 2021 05:48:05 GMT
(16 hours after quake)
3.1

14 km
JUJUY (Argentina) [Show on map]More
24 Oct 2021 06:21:36 GMT
(16 hours after quake)
3.2

30 km
OFFSHORE ATACAMA, CHILE [Show on map]More
24 Oct 2021 06:43:59 GMT
(17 hours after quake)
3.4

111 km
TARAPACA, CHILE [Show on map]More
24 Oct 2021 07:57:43 GMT
(18 hours after quake)
3.2

41 km
OFFSHORE ATACAMA, CHILE [Show on map]More
24 Oct 2021 08:55:19 GMT
(19 hours after quake)
3.0

91 km
SAN JUAN (Argentina) [Show on map]More
24 Oct 2021 09:09:13 GMT
(19 hours after quake)
3.1

18 km
CATAMARCA (Argentina) [Show on map]More
24 Oct 2021 10:28:36 GMT
(20 hours after quake)
4.5

15 km
CENTRAL PERU [Show on map]More
24 Oct 2021 10:28:45 GMT
(20 hours after quake)
4.1

10 km
Central Peru [Show on map]More
24 Oct 2021 11:08:31 GMT
(21 hours after quake)
3.1

236 km
JUJUY, ARGENTINA [Show on map]More
24 Oct 2021 11:56:37 GMT
(22 hours after quake)
3.0

123 km
TARAPACA, CHILE [Show on map]More
24 Oct 2021 15:52:57 GMT
(1 day 2 hours after quake)
3.1

103 km
SAN JUAN (Argentina) [Show on map]More
24 Oct 2021 16:45:38 GMT
(1 day 3 hours after quake)
3.1

127 km
LA RIOJA (Argentina) [Show on map]More
24 Oct 2021 16:52:35 GMT
(1 day 3 hours after quake)
4.2

191 km
SALTA, ARGENTINA [Show on map]More
24 Oct 2021 17:29:29 GMT
(1 day 3 hours after quake)
4.0

15 km
OFF COAST OF AISEN, CHILE [Show on map]More
24 Oct 2021 17:40:16 GMT
(1 day 4 hours after quake)
3.6

4 km
Ecuador - Santa Elena, A 40.6 Km De Pedro Carbo [Show on map]More
24 Oct 2021 18:09:11 GMT
(1 day 4 hours after quake)
4.3

251 km
SALTA, ARGENTINA [Show on map]More
24 Oct 2021 18:26:23 GMT
(1 day 4 hours after quake)
3.0

10 km
SAN JUAN (Argentina) [Show on map]More
24 Oct 2021 22:39:38 GMT
(1 day 9 hours after quake)
3.3

130 km
ANTOFAGASTA, CHILE [Show on map]More
25 Oct 2021 00:07:04 GMT
(1 day 10 hours after quake)
3.1

106 km
SAN JUAN (Argentina) [Show on map]More
25 Oct 2021 01:55:08 GMT
(1 day 12 hours after quake)
3.0

129 km
ANTOFAGASTA, CHILE [Show on map]More
25 Oct 2021 05:07:48 GMT
(1 day 15 hours after quake)
3.0

114 km
SAN JUAN (Argentina) [Show on map]More
25 Oct 2021 07:56:15 GMT
(1 day 18 hours after quake)
3.0

88 km
SAN JUAN (Argentina) [Show on map]More
25 Oct 2021 11:05:50 GMT
(1 day 21 hours after quake)
3.5

18 km
OFFSHORE VALPARAISO, CHILE [Show on map]More
25 Oct 2021 14:39:36 GMT
(2 days after quake)
4.3

2 km
OFFSHORE VALPARAISO, CHILE [Show on map]More
25 Oct 2021 16:40:10 GMT
(2 days after quake)
3.1

42 km
OFFSHORE ANTOFAGASTA, CHILE [Show on map]More
25 Oct 2021 18:45:12 GMT
(2 days after quake)
3.7

54 km
COQUIMBO, CHILE [Show on map]More
25 Oct 2021 21:07:01 GMT
(2 days after quake)
3.2

217 km
JUJUY (Argentina) [Show on map]More
25 Oct 2021 22:30:49 GMT
(2 days after quake)
3.3

193 km
POTOSI, BOLIVIA [Show on map]More
25 Oct 2021 23:04:10 GMT
(2 days after quake)
3.4

136 km
JUJUY (Argentina) [Show on map]More
25 Oct 2021 23:39:57 GMT
(2 days after quake)
3.0

116 km
SAN JUAN (Argentina) [Show on map]More
26 Oct 2021 01:59:23 GMT
(2 days after quake)
3.0

60 km
ATACAMA, CHILE [Show on map]More
26 Oct 2021 03:35:41 GMT
(3 days after quake)
5.0

89 km
Chile-Argentina Border Region [Show on map]More
26 Oct 2021 04:00:58 GMT
(3 days after quake)
3.4

110 km
TARAPACA, CHILE [Show on map]More
26 Oct 2021 04:02:10 GMT
(3 days after quake)
3.2

65 km
OFFSHORE VALPARAISO, CHILE [Show on map]More
26 Oct 2021 04:32:44 GMT
(3 days after quake)
4.7

10 km
Central East Pacific Rise [Show on map]More
26 Oct 2021 06:23:01 GMT
(3 days after quake)
3.3

174 km
JUJUY (Argentina) [Show on map]More
26 Oct 2021 08:08:14 GMT
(3 days after quake)
3.0

10 km
SAN JUAN (Argentina) [Show on map]More
26 Oct 2021 11:18:26 GMT
(3 days after quake)
3.0

102 km
SAN JUAN (Argentina) [Show on map]More
26 Oct 2021 11:52:34 GMT
(3 days after quake)
3.1

111 km
ANTOFAGASTA, CHILE [Show on map]More
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