The spreading-center segment at the southern end of California's Salton Sea is marked by all but which of the following?

Question

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The spreading-center segment at the southern end of California's Salton Sea is marked by glassy volcanic domes, high heat flow, boiling mud pots, and major geothermal energy reservoirs. However, it does not have a lack of small earthquakes because magma is too close to the Earth's surface. In fact, the area experiences many small earthquakes due to the movement of magma and the tectonic plates in the region.

The Spreading-Center Segment at the Southern End of California's Salton