The Aleutean Islands Arc

The Aleutean Islands form an arc as the Pacific Plate drifts underneath the North American Plate. It is tempting to study a bit closer, because it seems like a semi-circle with a string from east to west. Let us follow the islands, connecting them with a line, and see what we get:

The area of Kamchatka is geologically extremely important, becauase in those areas the North American Tectonic Plate meets the Eaurasian Plate. A main division line of the model used here does cross the peninsulas there.

The Kamchatka Neck.

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