Seismic hazard in Latvia is appraised on the basis of PSHA method. A seismotectonic analysis allowed discovering 8 sources of earthquakes in Latvia and the same number abroad, near its borders. The assessment of seismic hazard in Latvia shows that PGA with the probability 10%, during 50 years will exceed 10 - 13 cm/s2 in Sigulda, Riga, Olaine, Aizkraukle, Cesis. Estimations of PGA correspond to Pre-Quaternary deposits of A type. The common seismic hazard includes the estimation of PGA for Pre-Quaternary deposits and response spectrum from the Quaternary deposits.