If it is a hard strata, isolated footings would be sufficient. However, to withstand the seismic forces, all the isolated footings must be connected with one another using a tie beam. This tie beam can resist the differential movement in strata due to the seismic loads.
If it is a soft strata, then a raft foundation or pile foundation is necessary. But both pile foundation and raft foundation cannot counteract the effect of liquefaction. If the soil is found to be susceptible to liquefaction, then proper ground improvement methods should be followed before the construction of the foundation.
Various ground improvement techniques can be found here.