Royal Navy personnel are helping scientists warn of potentially catastrophic tsunamis by researching huge underwater volcanoes on the edge of Antarctica. Navy icebreaker HMS Protector has used her state-of-the-art sensors to scan peaks in the South Sandwich Islands – one of the world’s most remote territories.
From Stefan Christman’s absorbing studies of emperor penguins to Sebastião Salgado’s stunning images of unpeopled wilderness, these are richly rewarding voyages for armchair explorers
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Based on its magnitude, the fault that was active during the quake ruptured along a surface of approx. 20 km
2 (=8 sqare miles) as a first-order estimate. The length of the rupture zone thus was probably around 8 km (5 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).
Recorded aftershocks, latest first (0 quakes):
So far, no aftershocks have been registered.
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Based on its magnitude, the fault that was active during the quake ruptured along a surface of approx. 13 km
2 (=5 sqare miles) as a first-order estimate. The length of the rupture zone thus was probably around 6 km (4 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).
Recorded aftershocks, latest first (0 quakes):
So far, no aftershocks have been registered.