It is called the shadow zone, an area at an angle of between 104° and 140° from the axis of the epicenter, where the earth's liquid outer core has refracted the P-waves away from the direct line of travel.
Stress waves
shadow zone
An area on Earth's surface where no direct seismic waves from a particular earthquake can be detected.
If an area has a strong amount of seismic waves along, or around, you can predict if an area is active for earthquakes
If an area has a strong amount of seismic waves along, or around, you can predict if an area is active for earthquakes
If an area has a strong amount of seismic waves along, or around, you can predict if an area is active for earthquakes
If an area has a strong amount of seismic waves along, or around, you can predict if an area is active for earthquakes
If an area has a strong amount of seismic waves along, or around, you can predict if an area is active for earthquakes
they use vaginas
Shadow zone
mohorovicic discontinuity
Mohorovicic Discontinuity. A+Good luck! ~K