Séisme mineur mag. 1.4 - Greece: 4 Km ENE From Thebes, mercredi, 27 oct. 2021 14:21 (GMT +3) -

Quakes around its antipode during the following 3 jours
Check different time intervals: 24 hours | 2 days
Date & heure: 27 Oct 2021 11:21:24 UTC -
Heure locale à l'épicentre: mercredi, 27 oct. 2021 14:21 (GMT +3)
Magnitude: 1.4
Profondeur: 9.5 km
Épicentre latitude / longitude: 38.3299°N / 23.3638°E (Grèce)
Antipode latitude / longitude: 38.33°S / 156.636°W
Source de données principale: NOA (National Observatory of Athens)
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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 10. This is compared to the average number of 0.11 quakes during preceding intervals of 3 jours with a standard deviation (σ) of 1.4, calculated by analzing all 100 preceding intervals of 3 jours for the same region.
Note: At a magnitude of 1.4, 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
5+300.33 (9.4σ)
4+ (5.2σ)
3+200.22 (8.9σ)
Total100.111.49.9 (7.3σ)
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

Showing quakes magnitude 3.0 or higher (total: 10).
Date et l'heureMag
27 Oct 2021 13:51:56 GMT
(2 heures et 31 minutes after quake)

362 km
New Zealand [Show on map]Plus
27 Oct 2021 17:21:28 GMT
(6 heures after quake)

540 km
New Zealand [Show on map]Plus
28 Oct 2021 06:03:11 GMT
(19 heures after quake)

10 km
167 Km S of ‘Ohonua, Tonga [Show on map]Plus
28 Oct 2021 14:36:58 GMT
(1 jour 3 heures after quake)

227 km
New Zealand [Show on map]Plus
28 Oct 2021 22:37:47 GMT
(1 jour 11 heures after quake)

10 km
29 Oct 2021 15:23:21 GMT
(2 jours after quake)

557 km
29 Oct 2021 19:42:05 GMT
(2 jours after quake)

12 km
New Zealand [Show on map]Plus
29 Oct 2021 22:10:59 GMT
(2 jours after quake)

151 km
New Zealand [Show on map]Plus
29 Oct 2021 23:19:17 GMT
(2 jours after quake)

10 km
201 Km SSE of ‘Ohonua, Tonga [Show on map]Plus
30 Oct 2021 08:05:18 GMT
(3 jours after quake)

370 km
Fiji Islands Region [Show on map]Plus
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