Hi Don,

We were having a conversation about this area earlier and I thought I'd share part of it with the board members.

There is little known about the aftershock patterns from subduction zone earthquakes, so with that missing element, what we are seeing unfold in the Pacific NW really is setting the record for future studies of such events.

As I was commenting to Don I told him I wondered what happened when one slab of the crust is being subducted under the other in the very technical end. In my thinking, when the Olympia earthquake occurred it remains possible there may be large boulders, I mean very large, that have not found a resting spot and thus between these two slabs a rocking motion may be occurring.

What one sees on the surface are moderate to small earthquakes and the one's near Vancouver Island still signs that the area has not found its final resting spot. Perhaps in time when things level out a bit, the teeter tottering that is occurring will cease.

As they say, experience is the best teacher and today we have a live classroom in this area and many will learn from studying what happened before, during and after this subduction event.

Petra