The majority of earthquakes and volcanoes occur:Along plate boundariesIn the middle of the oceanIn the rift valleysIn the middle of continents​

The majority of earthquakes and volcanoes occur along plate boundaries. The Earth's lithosphere is divided into several large and small tectonic plates, which float on the semi-fluid asthenosphere beneath them. The boundaries where these plates interact are the sites of intense geological activity, including earthquakes and volcanic eruptions.

There are three main types of plate boundaries: convergent, divergent, and transform. Convergent boundaries are where plates move towards each other and can result in the formation of mountains, volcanic activity, and earthquakes. Divergent boundaries are where plates move apart from each other, creating new crust as magma rises to the surface. This can cause volcanic activity and earthquakes as well. Transform boundaries are where plates slide past each other horizontally, leading to earthquakes.