1. Convergent Plate Boundaries: This is where two tectonic plates collide. The immense pressure and friction generated can cause one plate to slide beneath the other (subduction) or the plates to buckle and fold (collision). This type of movement creates deep-seated earthquakes, some of which are the largest ever recorded.
2. Transform Plate Boundaries: This is where two plates slide past each other horizontally. While the movement may seem simple, the friction and stress generated along the fault line can cause powerful earthquakes, particularly when the plates "stick" and then suddenly release.
Examples:
* Convergent: The 2011 Tohoku earthquake and tsunami in Japan, the 1960 Valdivia earthquake in Chile, and the 2004 Indian Ocean earthquake are all examples of large earthquakes caused by convergent plate boundaries.
* Transform: The 1906 San Francisco earthquake and the 1994 Northridge earthquake are both examples of large earthquakes caused by transform plate boundaries.
It's important to note that while convergent boundaries tend to produce the *largest* earthquakes, they can also be less frequent than earthquakes at transform boundaries. Both types of boundaries can pose significant seismic hazards.
