Séisme mineur mag. 2.1 - 37 km au nord-est de Tagbilaran, Bohol, Visayas centrales, Philippines, jeudi, 21 oct. 2021 00:05 (GMT +8) -

Quakes around its antipode during the following 3 jours
Check different time intervals: 24 hours | 2 days
Date & heure: 20 Oct 2021 16:05:00 UTC -
Heure locale à l'épicentre: jeudi, 21 oct. 2021 00:05 (GMT +8)
Magnitude: 2.1
Profondeur: 28 km
Épicentre latitude / longitude: 9.85°N / 124.13°E (Bohol, Visayas centrales, Philippines)
Antipode latitude / longitude: 9.85°S / 55.87°W (Brésil)
Source de données principale: PHIVOLCS (Philippine Institute of Volcanology and Seismology)
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Quakes within 30 degrees from seismic antipode up to 3 jours 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 jours around the antipode of the quake was 48. This is compared to the average number of 0.17 quakes during preceding intervals of 3 jours with a standard deviation (σ) of 5.1, calculated by analzing all 100 preceding intervals of 3 jours for the same region.
Interpretation:
Note: At a magnitude of 2.1, 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 jours.
Mag classTotal #AverageσObserved deviation
6+000n/a
5+000n/a
4+500.55 (9.8σ)
3+430.24.642.8 (9.3σ)
Total480.175.147.8 (9.4σ)
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

Filtrer par magnitude:
Tous
3.0+
4.0+
Showing quakes magnitude 3.0 or higher (total: 48).
Date et l'heureMag
Profondeur
LieuDétail
20 Oct 2021 17:06:23 GMT
(1 heure et 1 minutes after quake)
3.1

106 km
SAN JUAN (Argentina) [Show on map]Plus
20 Oct 2021 17:59:50 GMT
(1 heure et 55 minutes after quake)
3.1

116 km
ANTOFAGASTA, CHILE [Show on map]Plus
20 Oct 2021 20:02:03 GMT
(4 heures after quake)
3.1

138 km
SAN JUAN (Argentina) [Show on map]Plus
20 Oct 2021 20:16:46 GMT
(4 heures after quake)
3.3

37 km
OFFSHORE COQUIMBO, CHILE [Show on map]Plus
20 Oct 2021 20:20:20 GMT
(4 heures after quake)
3.1

81 km
ANTOFAGASTA, CHILE [Show on map]Plus
20 Oct 2021 22:21:00 GMT
(6 heures after quake)
3.3

35 km
Venezuela: 4 Km Al Suroeste De Guiria [Show on map]Plus
20 Oct 2021 22:21:05 GMT
(6 heures after quake)
3.6

0 km
French Guiana: Oiapoque/AP [Show on map]Plus
21 Oct 2021 00:03:57 GMT
(8 heures after quake)
3.4

174 km
SAN JUAN (Argentina) [Show on map]Plus
21 Oct 2021 02:42:47 GMT
(11 heures after quake)
3.1

108 km
TARAPACA, CHILE [Show on map]Plus
21 Oct 2021 03:29:00 GMT
(11 heures after quake)
3.1

23 km
Venezuela: 30 Km Al Norte De Barquisimeto [Show on map]Plus
21 Oct 2021 05:58:54 GMT
(14 heures after quake)
3.3

36 km
OFFSHORE VALPARAISO, CHILE [Show on map]Plus
21 Oct 2021 07:31:17 GMT
(15 heures after quake)
3.1

122 km
ANTOFAGASTA, CHILE [Show on map]Plus
21 Oct 2021 10:01:50 GMT
(18 heures after quake)
3.5

102 km
ANTOFAGASTA, CHILE [Show on map]Plus
21 Oct 2021 10:32:27 GMT
(18 heures after quake)
3.2

194 km
SALTA (Argentina) [Show on map]Plus
21 Oct 2021 10:51:19 GMT
(19 heures after quake)
3.3

33 km
SALTA (Argentina) [Show on map]Plus
21 Oct 2021 10:57:27 GMT
(19 heures after quake)
3.9

221 km
SALTA, ARGENTINA [Show on map]Plus
21 Oct 2021 14:17:55 GMT
(22 heures after quake)
3.4

120 km
ANTOFAGASTA, CHILE [Show on map]Plus
21 Oct 2021 14:23:00 GMT
(22 heures after quake)
3.0

1.3 km
Venezuela: 31 Km Al Sureste De El Vigia [Show on map]Plus
21 Oct 2021 15:03:11 GMT
(23 heures after quake)
3.1

0 km
Brazil: Rifaina/SP [Show on map]Plus
21 Oct 2021 19:17:24 GMT
(1 jour 3 heures after quake)
3.1

12 km
SAN JUAN (Argentina) [Show on map]Plus
21 Oct 2021 19:40:36 GMT
(1 jour 4 heures after quake)
3.3

6 km
SAN JUAN (Argentina) [Show on map]Plus
21 Oct 2021 19:43:24 GMT
(1 jour 4 heures after quake)
3.3

201 km
SALTA (Argentina) [Show on map]Plus
21 Oct 2021 20:43:26 GMT
(1 jour 5 heures after quake)
3.6

259 km
POTOSI, BOLIVIA [Show on map]Plus
21 Oct 2021 23:55:54 GMT
(1 jour 8 heures after quake)
3.7

99 km
COQUIMBO, CHILE [Show on map]Plus
22 Oct 2021 01:24:42 GMT
(1 jour 9 heures after quake)
3.2

115 km
ANTOFAGASTA, CHILE [Show on map]Plus
22 Oct 2021 07:46:43 GMT
(1 jour 16 heures after quake)
3.0

109 km
TARAPACA, CHILE [Show on map]Plus
22 Oct 2021 09:29:13 GMT
(1 jour 17 heures after quake)
3.3

117 km
SAN JUAN (Argentina) [Show on map]Plus
22 Oct 2021 09:30:41 GMT
(1 jour 17 heures after quake)
3.8

39 km
OFFSHORE TARAPACA, CHILE [Show on map]Plus
22 Oct 2021 09:57:05 GMT
(1 jour 18 heures after quake)
3.1

97 km
SAN JUAN (Argentina) [Show on map]Plus
22 Oct 2021 11:06:24 GMT
(1 jour 19 heures after quake)
4.2

22 km
Central Bolivia [Show on map]Plus
22 Oct 2021 11:14:49 GMT
(1 jour 19 heures after quake)
4.4

109 km
ANTOFAGASTA, CHILE [Show on map]Plus
22 Oct 2021 16:31:50 GMT
(2 jours after quake)
3.1

123 km
MENDOZA (Argentina) [Show on map]Plus
22 Oct 2021 18:06:25 GMT
(2 jours after quake)
4.2

134 km
CENTRAL PERU [Show on map]Plus
22 Oct 2021 19:39:53 GMT
(2 jours after quake)
3.4

192 km
POTOSI, BOLIVIA [Show on map]Plus
22 Oct 2021 20:13:30 GMT
(2 jours after quake)
3.2

115 km
SAN JUAN (Argentina) [Show on map]Plus
22 Oct 2021 22:11:06 GMT
(2 jours after quake)
3.4

109 km
SAN JUAN (Argentina) [Show on map]Plus
22 Oct 2021 22:40:43 GMT
(2 jours after quake)
3.1

155 km
SALTA (Argentina) [Show on map]Plus
22 Oct 2021 23:26:24 GMT
(2 jours after quake)
3.3

33 km
COQUIMBO, CHILE [Show on map]Plus
23 Oct 2021 02:08:56 GMT
(2 jours after quake)
3.3

201 km
ANTOFAGASTA, CHILE [Show on map]Plus
23 Oct 2021 03:09:21 GMT
(2 jours after quake)
3.1

10 km
SAN JUAN, ARGENTINA [Show on map]Plus
23 Oct 2021 03:34:30 GMT
(2 jours after quake)
3.5

0 km
Central Bolivia [Show on map]Plus
23 Oct 2021 04:14:13 GMT
(3 jours after quake)
3.9

12 km
SOUTHERN PERU [Show on map]Plus
23 Oct 2021 04:20:41 GMT
(3 jours after quake)
4.0

11 km
SOUTHERN PERU [Show on map]Plus
23 Oct 2021 08:21:43 GMT
(3 jours after quake)
4.7

154 km
Chile-Argentina Border Region [Show on map]Plus
23 Oct 2021 12:36:43 GMT
(3 jours after quake)
3.1

31 km
ATACAMA, CHILE [Show on map]Plus
23 Oct 2021 14:00:52 GMT
(3 jours after quake)
3.0

10 km
SAN JUAN (Argentina) [Show on map]Plus
23 Oct 2021 14:02:20 GMT
(3 jours after quake)
3.2

230 km
JUJUY (Argentina) [Show on map]Plus
23 Oct 2021 15:25:04 GMT
(3 jours after quake)
3.4

95 km
SAN LUIS (Argentina) [Show on map]Plus
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