Late-breaking AGU session on the 2021 South Sandwich Islands earthquake sequence

Jonathan Weiss jonathan.weiss at uni-potsdam.de
Thu Sep 2 20:30:30 UTC 2021


Dear members of the community,

We would like to draw your attention to a newly announced late-breaking 
session  at the AGU Fall Meeting 2021!

--

The August 2021 South Sandwich Islands earthquake sequence: What 
happened, regional tectonic context, and potential for South Atlantic 
hazards

On August 12, 2021 a complex earthquake sequence occurred beneath the 
South Sandwich Islands along the Scotia Arc. Magnitude estimates for the 
two (or more?) possibly slow ruptures are still under debate, though 
most estimates suggest that at least one event in this doublet was a 
great earthquake (M8+). Additionally, this sequence generated a 
far-reaching tsunami, highlighting a clear need for better understanding 
of seismic potential and improved geohazard monitoring in the southern 
oceans.

In this late-breaking session we welcome contributions that characterize 
the complex main events and associated aftershocks, discuss the 
observations and forecasts of the subsequent tsunami from both 
operational and post-event perspectives, address the regional tectonics 
of the Scotia Plate, paleo- and historical seismicity, and potential for 
future tsunami hazards along the Atlantic coasts of South America, 
Africa, and Antarctica.

--

The session is now open for submissions. Log in to your AGU User Portal 
(https://agu.confex.com/agu/fm21/gateway.cgi?), select "Late-breaking 
Sessions" from the left-hand menu, and choose "The August 2021 South 
Sandwich Islands earthquake sequence: What happened, regional tectonic 
context, and potential for South Atlantic hazards".

The submission deadline is 29 September 2021 23:59 EDT/03:59 +1 GMT. 
Authors may submit to this late-breaking session even if they have 
already submitted the maximum number of first-author abstracts allowed 
to other sessions.

Thank you for your attention. We look forward to seeing you virtually or 
in person in December.

Conveners:
Erica Emry
Jonathan Weiss
Summer Ohlendorf
Matthew Herman



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