Update on the Sumatran quake geology

A little more detailed description of the details
of the Sumatran quake follows. It has been revised
from the earlier one I posted.

Something to remember. These are all quesses.
Obviously, there's been no on-site inspection.

Preliminary locations of larger aftershocks
following the megathrust earthquake show that
approximately 1200 km of the plate boundary
slipped as a result of the earthquake. By
comparison with other large megathrust
earthquakes, the width of the causative fault-
rupture was likely over one-hundred km. From the
size of the earthquake, it is likely that the
average displacement on the fault plane was about
fifteen meters. The sea floor overlying the
thrust fault would have been uplifted by several
meters as a result of the earthquake. The above
estimates of fault-dimensions and displacement
will be refined in the near future as the result
of detailed analyses of the earthquake waves.

The rest of the guess.