They also study the structure of the earth using seismic waves much like dolphins use sonar to see objects underwater. Other scientists use the Global Positioning System to study earth movements and they are called geodesists. Earthquake geologists study the structure of modern faults and paleo-earthquakes, otherwise known as prehistoric earthquakes. All of us work together to understand earthquakes, when they occur and where they occur. Together with civil engineers, we help build better earthquake-resistant buildings.
Earthquakes mostly happen along the boundaries between tectonic plates.
The places mentioned above are all along plate boundaries. The San Andreas fault is the most studied fault which is a major part of the plate boundary between the North American and Pacific plates. Hundreds of small earthquakes occur within California along this plate boundary every week. I just wanted to know if you could send me some info on earthquakes and pictures on earthquakes. Thank you, Nicole The important thing to note about foreshocks and aftershocks is that they are all earthquakes.