Analysis of information sources in references of the Wikipedia article "Earthquakes in Western Australia" in English language version.
The Australian southwest seismic zone (SWSZ) is a north-south trending belt of intra-plate earthquake activity that occurs in the southwest of Western Australia, bounded by 30.5°S to 32.5°S and 115.5°E to 118°E. This is one of the most seismically active areas in Australia, with nine earthquakes over magnitude 5.0 occurring between 1968 and 2002, the largest of these was the M6.5 Meckering earthquake in 1968. Since the SWSZ lies as close as ~150 km (93 mi) from the ~1.4 million population of the Perth region, it poses a distinct seismic hazard.
The Australian southwest seismic zone (SWSZ) is a north-south trending belt of intra-plate earthquake activity that occurs in the southwest of Western Australia, bounded by 30.5°S to 32.5°S and 115.5°E to 118°E. This is one of the most seismically active areas in Australia, with nine earthquakes over magnitude 5.0 occurring between 1968 and 2002, the largest of these was the M6.5 Meckering earthquake in 1968. Since the SWSZ lies as close as ~150 km (93 mi) from the ~1.4 million population of the Perth region, it poses a distinct seismic hazard.