What are the characteristics of regions that have the highest seismic risk

The topography in these regions is highly undulated. This is especially due to the fact that these regions are mainly within subduction zones of tectonic plates. As two plates collide the continental plate is folded into fold mountains at the line of subduction. Due to the collision and the stress in the boundary, the region is at high risk of seismic activity.

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the most common type of reef is the fringing reef. this type of reef grows seaward directly from the shore. they form borders along the shoreline and surrounding islands.