Séisme très faible mag. 2.0 - Province of Surigao del Norte, 5.6 km au nord-ouest de Kitcharao, Philippines, mardi, 21 sept. 2021 02:50 (GMT +8) -

Quakes around its antipode during the following 3 jours
Check different time intervals: 24 hours | 2 days
Date & heure: 20 Sep 2021 18:50:00 UTC -
Heure locale à l'épicentre: mardi, 21 sept. 2021 02:50 (GMT +8)
Magnitude: 2
Profondeur: 1 km
Épicentre latitude / longitude: 9.5°N / 125.55°E (Province of Surigao del Norte, Caraga, Philippines)
Antipode sismique latitude / longitude: 9.5°S / 54.45°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 40. This is compared to the average number of 42.21 quakes during preceding intervals of 3 jours with a standard deviation (σ) of 19.4, calculated by analzing all 100 preceding intervals of 3 jours for the same region.
Interpretation:
Note: At a magnitude of 2.0, 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 jours.
Mag classTotal #AverageσObserved deviation
6+000.2-0 (-0.2σ)
5+00.60.9-0.6 (-0.7σ)
4+67.84.2-1.8 (-0.4σ)
3+3433.716.10.3 (0σ)
Total4042.2119.4-2.2 (-0.1σ)
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: 40).
Date et l'heureMag
Profondeur
LieuDétail
20 Sep 2021 20:49:18 GMT
(1 heure et 59 minutes after quake)
3.9

217 km
JUJUY (Argentina) [Show on map]Plus
20 Sep 2021 21:23:01 GMT
(2 heures et 33 minutes after quake)
3.9

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

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

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

5 km
Venezuela: 16 Km Al Oeste De Guanare [Show on map]Plus
21 Sep 2021 06:54:27 GMT
(12 heures after quake)
3.3

68 km
COQUIMBO, CHILE [Show on map]Plus
21 Sep 2021 08:18:40 GMT
(13 heures after quake)
4.0

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

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

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

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

45 km
OFFSHORE ANTOFAGASTA, CHILE [Show on map]Plus
21 Sep 2021 21:57:31 GMT
(1 jour 3 heures after quake)
3.0

250 km
SALTA, ARGENTINA [Show on map]Plus
21 Sep 2021 22:04:26 GMT
(1 jour 3 heures after quake)
3.4

107 km
SAN JUAN (Argentina) [Show on map]Plus
22 Sep 2021 00:09:58 GMT
(1 jour 5 heures after quake)
3.1

209 km
SALTA (Argentina) [Show on map]Plus
22 Sep 2021 00:24:00 GMT
(1 jour 6 heures after quake)
3.0

36 km
Venezuela: Punta Arenas [Show on map]Plus
22 Sep 2021 01:08:57 GMT
(1 jour 6 heures after quake)
4.1

147 km
TARAPACA, CHILE [Show on map]Plus
22 Sep 2021 03:30:36 GMT
(1 jour 9 heures after quake)
3.1

116 km
TARAPACA, CHILE [Show on map]Plus
22 Sep 2021 03:55:33 GMT
(1 jour 9 heures after quake)
3.1

209 km
SALTA (Argentina) [Show on map]Plus
22 Sep 2021 05:07:38 GMT
(1 jour 10 heures after quake)
3.0

110 km
ANTOFAGASTA, CHILE [Show on map]Plus
22 Sep 2021 06:48:58 GMT
(1 jour 12 heures after quake)
3.4

121 km
SAN JUAN (Argentina) [Show on map]Plus
22 Sep 2021 10:34:11 GMT
(1 jour 16 heures after quake)
3.3

202 km
SALTA (Argentina) [Show on map]Plus
22 Sep 2021 11:49:46 GMT
(1 jour 17 heures after quake)
3.0

178 km
POTOSI, BOLIVIA [Show on map]Plus
22 Sep 2021 12:06:38 GMT
(1 jour 17 heures after quake)
3.2

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

121 km
SAN JUAN (Argentina) [Show on map]Plus
22 Sep 2021 17:37:48 GMT
(1 jour 23 heures after quake)
3.2

180 km
JUJUY (Argentina) [Show on map]Plus
22 Sep 2021 21:06:19 GMT
(2 jours after quake)
3.2

233 km
SAN JUAN (Argentina) [Show on map]Plus
22 Sep 2021 21:58:04 GMT
(2 jours after quake)
4.4

190 km
ANTOFAGASTA, CHILE [Show on map]Plus
23 Sep 2021 01:56:54 GMT
(2 jours after quake)
3.3

4 km
Ecuador - Pichincha, A 26.5 Km De Sangolqui [Show on map]Plus
23 Sep 2021 02:47:14 GMT
(2 jours after quake)
3.0

138 km
ANTOFAGASTA, CHILE [Show on map]Plus
23 Sep 2021 03:08:07 GMT
(2 jours after quake)
3.1

197 km
SALTA (Argentina) [Show on map]Plus
23 Sep 2021 04:06:03 GMT
(2 jours after quake)
4.4

30 km
OFF COAST OF NORTHERN PERU [Show on map]Plus
23 Sep 2021 05:09:30 GMT
(2 jours after quake)
3.6

81 km
Ecuador - Guayas, A 50.95 Km De Guayaquil [Show on map]Plus
23 Sep 2021 07:30:00 GMT
(3 jours after quake)
3.6

24 km
Venezuela: 10 Km Al Suroeste De Yaguaraparo [Show on map]Plus
23 Sep 2021 07:56:36 GMT
(3 jours after quake)
4.0

43 km
OFF COAST OF NORTHERN PERU [Show on map]Plus
23 Sep 2021 09:01:06 GMT
(3 jours after quake)
3.1

0 km
Brazil: Cajapio/MA [Show on map]Plus
23 Sep 2021 11:01:54 GMT
(3 jours after quake)
4.5

104 km
ANTOFAGASTA, CHILE [Show on map]Plus
23 Sep 2021 13:03:31 GMT
(3 jours after quake)
3.2

133 km
CATAMARCA (Argentina) [Show on map]Plus
23 Sep 2021 14:11:37 GMT
(3 jours after quake)
3.0

230 km
POTOSI, BOLIVIA [Show on map]Plus
23 Sep 2021 14:53:44 GMT
(3 jours after quake)
3.2

200 km
JUJUY (Argentina) [Show on map]Plus
23 Sep 2021 17:34:55 GMT
(3 jours after quake)
3.0

118 km
ANTOFAGASTA, CHILE [Show on map]Plus
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