OF THE
TIMES
M 8.1 - South Sandwich Islands region
2021-08-12 18:35:20 (UTC)58.416°S 25.321°W48.3 km depth
Seismic observations suggest this earthquake is part of a complex seismic sequence. Our current interpretation is that this earthquake is the mainshock to a M7.5 that occurred ~170s earlier. The location, depth, mechanism, and magnitude of this earthquake is preliminary and less well constrained than typical events of this size due to interference from the preceding M7.5 foreshock. Research is being conducted on this sequence to better understand the faulting geometry and details of rupture. This analysis will take time and our understanding will likely evolve. This page will be updated as we learn more about these interesting events.
Comment: RT reports: UPDATE August 15: ITV reports: