Séisme très faible mag. 2.8 - 1.8 km au sud-est de Naval, Biliran, Visayas orientales, Philippines, lundi, 27 sept. 2021 04:16 (GMT +8) -

Quakes around its antipode during the following 3 jours
Check different time intervals: 24 hours | 2 days
Date & heure: 26 Sep 2021 20:16:00 UTC -
Heure locale à l'épicentre: lundi, 27 sept. 2021 04:16 (GMT +8)
Magnitude: 2.8
Profondeur: 16 km
Épicentre latitude / longitude: 11.55°N / 124.41°E (Biliran, Visayas orientales, Philippines)
Antipode sismique latitude / longitude: 11.55°S / 55.59°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 51. This is compared to the average number of 45.59 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 2.8, 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+00.70.9-0.7 (-0.7σ)
4+128.44.23.6 (0.9σ)
3+3936.516.32.5 (0.2σ)
Total5145.5919.45.4 (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

Filtrer par magnitude:
Tous
3.0+
4.0+
Showing quakes magnitude 3.0 or higher (total: 51).
Date et l'heureMag
Profondeur
LieuDétail
26 Sep 2021 22:45:18 GMT
(2 heures et 29 minutes after quake)
3.9

27 km
OFFSHORE ANTOFAGASTA, CHILE [Show on map]Plus
27 Sep 2021 00:10:04 GMT
(4 heures after quake)
4.3

17 km
74 Km Al Suroeste De Medellin, Colombia [Show on map]Plus
27 Sep 2021 00:59:00 GMT
(5 heures after quake)
3.5

6.5 km
Venezuela: 28 Km Al Sur De San Antonio Del Tachira [Show on map]Plus
27 Sep 2021 01:02:00 GMT
(5 heures after quake)
3.8

50 km
Colombia: 40 Km Al Norte De Bucaramanga [Show on map]Plus
27 Sep 2021 01:25:37 GMT
(5 heures after quake)
3.0

10 km
OFF COAST OF COQUIMBO, CHILE [Show on map]Plus
27 Sep 2021 01:27:25 GMT
(5 heures after quake)
3.0

201 km
SALTA (Argentina) [Show on map]Plus
27 Sep 2021 06:24:48 GMT
(10 heures after quake)
3.0

71 km
VALPARAISO, CHILE [Show on map]Plus
27 Sep 2021 08:11:00 GMT
(12 heures after quake)
3.1

5 km
Venezuela: 5 Km Al Noreste De El Tocuyo [Show on map]Plus
27 Sep 2021 08:28:09 GMT
(12 heures after quake)
3.1

231 km
JUJUY (Argentina) [Show on map]Plus
27 Sep 2021 09:58:45 GMT
(14 heures after quake)
4.2

45 km
COQUIMBO, CHILE [Show on map]Plus
27 Sep 2021 11:32:04 GMT
(15 heures after quake)
3.5

223 km
JUJUY (Argentina) [Show on map]Plus
27 Sep 2021 11:38:00 GMT
(15 heures after quake)
3.0

34 km
OFFSHORE COQUIMBO, CHILE [Show on map]Plus
27 Sep 2021 12:04:26 GMT
(16 heures after quake)
3.1

116 km
TARAPACA, CHILE [Show on map]Plus
27 Sep 2021 12:26:16 GMT
(16 heures after quake)
3.3

88 km
Ecuador - Canar, A 28.72 Km De La Troncal [Show on map]Plus
27 Sep 2021 13:24:15 GMT
(17 heures after quake)
3.0

23 km
OFFSHORE VALPARAISO, CHILE [Show on map]Plus
27 Sep 2021 17:53:17 GMT
(22 heures after quake)
3.4

211 km
SALTA (Argentina) [Show on map]Plus
27 Sep 2021 17:56:32 GMT
(22 heures after quake)
4.6

174 km
Chile-Argentina Border Region [Show on map]Plus
27 Sep 2021 18:54:05 GMT
(23 heures after quake)
3.1

108 km
ANTOFAGASTA, CHILE [Show on map]Plus
27 Sep 2021 20:26:14 GMT
(1 jour 0 heures after quake)
3.4

182 km
SALTA (Argentina) [Show on map]Plus
27 Sep 2021 20:32:35 GMT
(1 jour 0 heures after quake)
4.3

27 km
OFF COAST OF NORTHERN PERU [Show on map]Plus
27 Sep 2021 21:19:40 GMT
(1 jour 1 heures after quake)
3.7

97 km
COQUIMBO, CHILE [Show on map]Plus
27 Sep 2021 21:52:32 GMT
(1 jour 2 heures after quake)
4.6

10 km
85 Km N of Cruzeiro Do Sul, Brazil [Show on map]Plus
27 Sep 2021 23:18:33 GMT
(1 jour 3 heures after quake)
3.4

80 km
ANTOFAGASTA, CHILE [Show on map]Plus
27 Sep 2021 23:54:04 GMT
(1 jour 4 heures after quake)
3.0

60 km
OFFSHORE COQUIMBO, CHILE [Show on map]Plus
28 Sep 2021 01:04:45 GMT
(1 jour 5 heures after quake)
3.1

102 km
SAN JUAN (Argentina) [Show on map]Plus
28 Sep 2021 01:44:06 GMT
(1 jour 5 heures after quake)
4.6

10 km
Central Mid-Atlantic Ridge [Show on map]Plus
28 Sep 2021 01:58:39 GMT
(1 jour 6 heures after quake)
3.4

30 km
SALTA (Argentina) [Show on map]Plus
28 Sep 2021 02:27:44 GMT
(1 jour 6 heures after quake)
4.5

133 km
ANTOFAGASTA, CHILE [Show on map]Plus
28 Sep 2021 05:52:53 GMT
(1 jour 10 heures after quake)
3.5

45 km
COQUIMBO, CHILE [Show on map]Plus
28 Sep 2021 07:55:43 GMT
(1 jour 12 heures after quake)
3.2

209 km
JUJUY (Argentina) [Show on map]Plus
28 Sep 2021 08:15:59 GMT
(1 jour 12 heures after quake)
3.8

126 km
ANTOFAGASTA, CHILE [Show on map]Plus
28 Sep 2021 09:15:29 GMT
(1 jour 13 heures after quake)
3.2

166 km
SALTA (Argentina) [Show on map]Plus
28 Sep 2021 11:06:01 GMT
(1 jour 15 heures after quake)
4.0

50 km
COQUIMBO, CHILE [Show on map]Plus
28 Sep 2021 13:57:03 GMT
(1 jour 18 heures after quake)
3.0

22 km
OFF COAST OF VALPARAISO, CHILE [Show on map]Plus
28 Sep 2021 20:50:47 GMT
(2 jours after quake)
4.0

165 km
SOUTHERN PERU [Show on map]Plus
28 Sep 2021 22:08:42 GMT
(2 jours after quake)
3.8

220 km
JUJUY (Argentina) [Show on map]Plus
28 Sep 2021 23:15:06 GMT
(2 jours after quake)
3.6

20 km
PERU-ECUADOR BORDER REGION [Show on map]Plus
28 Sep 2021 23:17:19 GMT
(2 jours after quake)
3.8

229 km
JUJUY (Argentina) [Show on map]Plus
29 Sep 2021 00:15:57 GMT
(2 jours after quake)
4.0

140 km
CENTRAL PERU [Show on map]Plus
29 Sep 2021 01:26:03 GMT
(2 jours after quake)
4.4

111 km
TARAPACA, CHILE [Show on map]Plus
29 Sep 2021 02:13:13 GMT
(2 jours after quake)
3.0

111 km
ANTOFAGASTA, CHILE [Show on map]Plus
29 Sep 2021 06:11:00 GMT
(2 jours after quake)
3.0

56 km
VALPARAISO, CHILE [Show on map]Plus
29 Sep 2021 06:45:59 GMT
(2 jours after quake)
3.3

81 km
ANTOFAGASTA, CHILE [Show on map]Plus
29 Sep 2021 06:53:21 GMT
(2 jours after quake)
3.5

279 km
JUJUY (Argentina) [Show on map]Plus
29 Sep 2021 07:13:08 GMT
(2 jours after quake)
3.1

20 km
OFFSHORE VALPARAISO, CHILE [Show on map]Plus
29 Sep 2021 07:53:57 GMT
(2 jours after quake)
4.8

19 km
Mendoza Province, Argentina [Show on map]Plus
29 Sep 2021 11:19:22 GMT
(3 jours after quake)
3.1

112 km
SAN JUAN (Argentina) [Show on map]Plus
29 Sep 2021 13:21:34 GMT
(3 jours after quake)
3.4

200 km
SALTA (Argentina) [Show on map]Plus
29 Sep 2021 13:35:57 GMT
(3 jours after quake)
3.5

240 km
SALTA, ARGENTINA [Show on map]Plus
29 Sep 2021 15:59:05 GMT
(3 jours after quake)
3.0

19 km
Martinique: Near Le Robert [Show on map]Plus
29 Sep 2021 17:50:54 GMT
(3 jours after quake)
3.4

211 km
SALTA, ARGENTINA [Show on map]Plus
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