Question

developments needed to be made on a seismograph

Answer 1

1.The Seisimograph must be able to calculate also the distance, from where the Earthquake has occurred.
2. It must be able to tell upto how much time the earthquake has occurred .
3. It must be able to calculate the distance, upto where the Earthquake has occurred.
4. This has to be modified to detect, for what reason the Earthquake has occured.