# Séisme mineur mag. 1.6 - 20 km au nord-est de Périgueux, France, mercredi, 27 oct. 2021 13:07 (GMT +2) - writeAge(1635332866)

Quakes around its antipode during the following 3 jours
Check different time intervals: 24 hours | 2 days
Date & heure: 27 Oct 2021 11:07:46 UTC -
Heure locale à l'épicentre: mercredi, 27 oct. 2021 13:07 (GMT +2)
Magnitude: 1.6
Profondeur: 0 km
Épicentre latitude / longitude: 45.294°N / 0.9144°E (Département de la Dordogne, Nouvelle-Aquitaine, France)
Antipode latitude / longitude: 45.294°S / 179.086°W (Nouvelle-Zélande)
Source de données principale: RENASS (Réseau National de Surveillance Sismique (RéNaSS))
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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 7. This is compared to the average number of 0 quakes during preceding intervals of 3 jours with a standard deviation (σ) of 0.7, calculated by analzing all 100 preceding intervals of 3 jours for the same region.
Interpretation:
Note: At a magnitude of 1.6, 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 class Total # Average σ Observed deviation 6+ 0 0 0 n/a 5+ 3 0 0.3 3 (9.9σ) 4+ 3 0 0.3 3 (9.9σ) 3+ 1 0 0.1 1 (9.9σ) Total 7 0 0.7 7 (9.9σ)
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

Showing quakes magnitude 3.0 or higher (total: 7).
 Date et l'heure MagProfondeur Lieu Détail 28 Oct 2021 06:03:11 GMT(19 heures after quake) 5.010 km 167 Km S of ‘Ohonua, Tonga [Show on map] Plus 28 Oct 2021 14:36:58 GMT(1 jour 3 heures after quake) 3.7227 km New Zealand [Show on map] Plus 29 Oct 2021 15:23:21 GMT(2 jours after quake) 4.6557 km SOUTH OF FIJI ISLANDS [Show on map] Plus 29 Oct 2021 19:42:05 GMT(2 jours after quake) 5.512 km New Zealand [Show on map] Plus 29 Oct 2021 22:10:59 GMT(2 jours after quake) 4.6151 km New Zealand [Show on map] Plus 29 Oct 2021 23:19:17 GMT(3 jours after quake) 4.510 km 201 Km SSE of ‘Ohonua, Tonga [Show on map] Plus 30 Oct 2021 08:05:18 GMT(3 jours after quake) 5.5370 km Fiji Islands Region [Show on map] Plus
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