Séisme modéré mag. 5.5 - Nouvelle-Zélande, dimanche, le 28 octobre 1973 13:44

Date & heure: 28 Oct 1973 13:44:45 UTC
Magnitude: 5.5
Profondeur: 95.0 km
Épicentre latitude / longitude: 33.042°S / 179.151°W (South Pacific Ocean, Nouvelle-Zélande)
Antipode: 33.042°N / 0.849°E
Volcan le plus près: Haungaroa (65 km / 40 mi)
Source de données principale: USGS (United States Geological Survey)
Énergie sismique libérée estimée : 1.1 x 10¹³ joules (3.12 GWh, équivalent à 2682 tonnes de TNT ou 0.2 bombes atomiques!) | about seismic energy

Séismes les plus récents Top 20 dernières 24 heures Séismes en: New Zealand

Based on its magnitude, the fault that was active during the quake ruptured along a surface of approx. 32 km² (=12 sqare miles) as a first-order estimate. The length of the rupture zone thus was probably around 10 km (6 mi).
Aftershocks typically occur during the days and weeks following the quake at or near the same fault, at distances of up to approx. two times the length of the rupture zone.
The often broadly linear arrangement of aftershock epicenters encompasses the rupture zone of the main shock (check on the map below to verify).

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