Abstract

• Mandalay city is located on the eastern bank of Irrawaddy River and about 8 km east of seismically active Sagaing fault. By this fault, Mandalay region has been experienced by many destructive earthquakes. All liquefaction events in Myanmar were observed nearly water body as rivers. Due to these conditions, the liquefaction susceptibility is threatening the Mandalay city. Liquefaction triggering of soils were mainly calculated based on 55 shear wave velocity tests by using 1998 NCEER recommended of Liq.IT v.4.7.7.5 software. The liquefaction potential (PL) maps were developed by using overall liquefaction potential index (PL). The liquefaction potential (PL) maps by using PGA 2% probability should be considered for the construction of lifeline structures such as water pipe line, gas pipe line, transportation ways and telecommunication lines. The PL maps using PGA 10% probability are appropriate for engineering construction of the various sorts of structures especially normal building. According to resulted data, the highly liquefied zones fall in the western parts of Aungmyaythazan and Chanayethazan townships. These PL maps will help the structural designers or architects and city planners to check the vulnerability of the area against liquefaction. The present data will be very useful not only for seismic hazard mitigation programs but also for seismic safety plans.