<Li> Seismic magnitude scales </Li> <Li> Seismic intensity scales </Li> <Tr> <Th> Prediction </Th> </Tr> <Tr> <Td> <Ul> <Li> Coordinating Committee for Earthquake Prediction </Li> <Li> Forecasting </Li> </Ul> </Td> </Tr>

In which layer of earth does an earthquake began