Séisme mineur mag. 2.3 - Province of Surigao del Sur, 28 km au nord-est de Bah-Bah, Philippines, lundi, 20 sept. 2021 06:44 (GMT +8) -

Quakes around its antipode during the following 3 jours
Check different time intervals: 24 hours | 2 days
Date & heure: 19 Sep 2021 22:44:00 UTC -
Heure locale à l'épicentre: lundi, 20 sept. 2021 06:44 (GMT +8)
Magnitude: 2.3
Profondeur: 25 km
Épicentre latitude / longitude: 8.8°N / 126.08°E (Province of Surigao del Sur, Caraga, Philippines)
Antipode latitude / longitude: 8.8°S / 53.92°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 38. This is compared to the average number of 38.95 quakes during preceding intervals of 3 jours with a standard deviation (σ) of 19.5, calculated by analzing all 100 preceding intervals of 3 jours for the same region.
Interpretation:
Note: At a magnitude of 2.3, 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 jours.
Mag classTotal #AverageσObserved deviation
6+000.2-0 (-0.2σ)
5+00.60.9-0.6 (-0.7σ)
4+77.44.3-0.4 (-0.1σ)
3+3130.9160.1 (0σ)
Total3838.9519.5-1 (-0σ)
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: 38).
Date et l'heureMag
Profondeur
LieuDétail
19 Sep 2021 23:19:10 GMT
(35 minutes after quake)
3.3

111 km
ATACAMA, CHILE [Show on map]Plus
20 Sep 2021 02:18:14 GMT
(4 heures after quake)
3.2

75 km
ANTOFAGASTA, CHILE [Show on map]Plus
20 Sep 2021 02:57:21 GMT
(4 heures after quake)
3.0

106 km
TARAPACA, CHILE [Show on map]Plus
20 Sep 2021 07:12:11 GMT
(8 heures after quake)
4.6

10 km
OFFSHORE ANTOFAGASTA, CHILE [Show on map]Plus
20 Sep 2021 07:53:00 GMT
(9 heures after quake)
4.2

142 km
SOUTHERN PERU [Show on map]Plus
20 Sep 2021 12:43:49 GMT
(14 heures after quake)
4.3

50 km
Peru: OFF COAST OF TARAPACA, CHILE [Show on map]Plus
20 Sep 2021 13:09:48 GMT
(14 heures after quake)
3.5

130 km
ANTOFAGASTA, CHILE [Show on map]Plus
20 Sep 2021 14:05:34 GMT
(15 heures after quake)
3.9

220 km
POTOSI, BOLIVIA [Show on map]Plus
20 Sep 2021 15:11:19 GMT
(16 heures after quake)
3.0

15 km
Martinique: Near Le Robert [Show on map]Plus
20 Sep 2021 17:27:35 GMT
(19 heures after quake)
4.4

10 km
SAN JUAN (Argentina) [Show on map]Plus
20 Sep 2021 17:43:33 GMT
(19 heures after quake)
3.0

190 km
SALTA (Argentina) [Show on map]Plus
20 Sep 2021 18:10:47 GMT
(19 heures after quake)
3.4

181 km
SALTA, ARGENTINA [Show on map]Plus
20 Sep 2021 18:25:17 GMT
(20 heures after quake)
3.0

41 km
ANTOFAGASTA, CHILE [Show on map]Plus
20 Sep 2021 20:49:18 GMT
(22 heures after quake)
3.9

217 km
JUJUY (Argentina) [Show on map]Plus
20 Sep 2021 21:23:01 GMT
(23 heures after quake)
3.9

28 km
Martinique: Near Le Lamentin [Show on map]Plus
20 Sep 2021 22:05:19 GMT
(23 heures after quake)
3.1

206 km
SALTA (Argentina) [Show on map]Plus
21 Sep 2021 03:44:28 GMT
(1 jour 5 heures after quake)
3.4

209 km
SALTA (Argentina) [Show on map]Plus
21 Sep 2021 06:14:00 GMT
(1 jour 8 heures after quake)
3.0

5 km
Venezuela: 16 Km Al Oeste De Guanare [Show on map]Plus
21 Sep 2021 08:18:40 GMT
(1 jour 10 heures after quake)
4.0

30 km
NEAR COAST OF SOUTHERN PERU [Show on map]Plus
21 Sep 2021 12:40:05 GMT
(1 jour 14 heures after quake)
3.0

170 km
JUJUY, ARGENTINA [Show on map]Plus
21 Sep 2021 13:39:27 GMT
(1 jour 15 heures after quake)
3.2

227 km
ANTOFAGASTA, CHILE [Show on map]Plus
21 Sep 2021 16:15:23 GMT
(1 jour 18 heures after quake)
3.3

93 km
SAN JUAN, ARGENTINA [Show on map]Plus
21 Sep 2021 19:37:06 GMT
(1 jour 21 heures after quake)
3.2

45 km
OFFSHORE ANTOFAGASTA, CHILE [Show on map]Plus
21 Sep 2021 21:57:31 GMT
(1 jour 23 heures after quake)
3.0

250 km
SALTA, ARGENTINA [Show on map]Plus
21 Sep 2021 22:04:26 GMT
(1 jour 23 heures after quake)
3.4

107 km
SAN JUAN (Argentina) [Show on map]Plus
22 Sep 2021 00:09:58 GMT
(2 jours after quake)
3.1

209 km
SALTA (Argentina) [Show on map]Plus
22 Sep 2021 00:24:00 GMT
(2 jours after quake)
3.0

36 km
Venezuela: Punta Arenas [Show on map]Plus
22 Sep 2021 01:08:57 GMT
(2 jours after quake)
4.1

147 km
TARAPACA, CHILE [Show on map]Plus
22 Sep 2021 03:30:36 GMT
(2 jours after quake)
3.1

116 km
TARAPACA, CHILE [Show on map]Plus
22 Sep 2021 03:55:33 GMT
(2 jours after quake)
3.1

209 km
SALTA (Argentina) [Show on map]Plus
22 Sep 2021 05:07:38 GMT
(2 jours after quake)
3.0

110 km
ANTOFAGASTA, CHILE [Show on map]Plus
22 Sep 2021 06:48:58 GMT
(2 jours after quake)
3.4

121 km
SAN JUAN (Argentina) [Show on map]Plus
22 Sep 2021 10:34:11 GMT
(2 jours after quake)
3.3

202 km
SALTA (Argentina) [Show on map]Plus
22 Sep 2021 11:49:46 GMT
(3 jours after quake)
3.0

178 km
POTOSI, BOLIVIA [Show on map]Plus
22 Sep 2021 12:06:38 GMT
(3 jours after quake)
3.2

150 km
JUJUY (Argentina) [Show on map]Plus
22 Sep 2021 17:01:36 GMT
(3 jours after quake)
3.0

121 km
SAN JUAN (Argentina) [Show on map]Plus
22 Sep 2021 17:37:48 GMT
(3 jours after quake)
3.2

180 km
JUJUY (Argentina) [Show on map]Plus
22 Sep 2021 21:58:04 GMT
(3 jours after quake)
4.4

190 km
ANTOFAGASTA, CHILE [Show on map]Plus
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