Give scientific reasons.

It is safer to find shelter under things like a bed, table at the time of earthquake.

It is safer to find shelter under things like a bed, table at the time of earthquake because heavy things may fall on us due to high vibrations and we can get severe injuries.

Since bed and table have wide area that if anything falling on it get distributed its applied pressure to table or bed equally.

Hence, there is a clear chance that table or bed will not break. Thus, we can hide there.