The example that shows the effects of tension in the Earth’s plates is the mid-Atlantic Ridge splitting Iceland.
Tension in tectonic plates is typically associated with divergent boundaries where plates are moving away from each other, as seen at the mid-Atlantic Ridge. In contrast, the formation of mountains like the Andes or the Himalayas is more related to compression due to subduction or collision of tectonic plates. An earthquake along the San Andreas Fault is primarily associated with shearing forces rather than tension.