Quote:
Originally Posted by fredinno
I've been to some 8 forums before, and this is by far the most sensitive.
Some part of Reddit are almost a contest to see how offensive you can get.
Forum culture is just as diverse as real culture. And I really don't appreciate being suspended.
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Your suspended. Wow, surprising.
However, I for one would be happy to see the last of your misinformation for a while at least.
Vancouver and earthquakes: once again you don't know enough about what you post. We could very easily suffer a magnitude 9 quake.
Yes the fault that threatens us is well off Vancouver Island. Yes we do not have the conditions that San Fransisco has. But that is irrelevant to the threat we face.
California's fault lines are such that one plate is moving linearly alongside another. The movement is horizontal. They catch, stall, and then release (strike-slip) - the resulting movement is the danger.
The Juan de Fuca is a subduction condition - with both horizontal and vertical aspects. The small offshore plate is moving under the main NA Continental plate.
The energy built up in this situation is completely different. The offshore plate is pushing under the plate we are on (Continental), and in doing so causes our plate to heave upwards in an arc.
Eventually, our plate will have stored enough energy to overcome the friction that holds it, and a couple of things will occur. 1) The Continental plate will let go of the Juan de Fuca plate, which will then move forward (to the east) and under a bit. This release of energy is what accounts for our offshore earthquakes. But the big one will be the release of the energy that has been building in the Continental plate. The arc, no longer held at the fault line will release. Vancouver sits on top of this arched portion of the Continental plate. For us, the release will mean that the earth's crust will drop vertically to its new stable position. We get a subduction earthquake, and it can be potentially very big. The most movement, and the most energy released, occurs where the arc is highest. That's where we are. In fact, the force of this component decreases toward the fault. We get hit by vertical change, the fault gets hit by horizontal change. Nothing like California. But easily as big and devastating.
So, fredinno, I again urge you to discuss all that there is to discuss. Tell stories. Give opinions. But, stop making claims of knowledge where you have none.