Answer:
Predicting earthquakes is complex task and some precursors are given below.
Explanation:
1. Changes in animal behavior: Certain animals can respond to the P-waves that are being generated.
2. Emission of Radon gas: is most rocks contain this gas, as this gas can be isotopically distinguished. It's attributed to being release pre-seismic stress or shock waves.
3. Breaking of an ice sheet or landslides: These may be issued before some large earthquake.
4. Magnetic and electric charges like the density and thickness in the rock mass.
5. Shaking and vibration of water bodies.