normal faults happen in rift valleys
reverse faults happen at subducting plate boundries
strike-slip faults appear between the offset portions of mid-ocean ridges
Epicenter & Hypocenter/Focus
Epicenter, Hypocenter, and Faults
Hypocenter/focus is where the earthquake rupture starts.
The epicenter is directly above the hypocenter/focus, at earth's surface.
Types of Faults
click on the fault's name for animations
To figure out just where a earthquake happened, you need to look at your seismogram and you need to know at least two other seismograph recordeds for the same earthquake. You will also need a map of the world, a ruler, a pencil, and a compass for drawing circles on the map.
To find the epicenter, find the radius from the seismograph's location and were all of the radiuses meet is were the epicenter is.