Study on the correlativity of earthquake’s impact on cities

Conclusions

The correlativity of earthquake’s influence on cities presents the possibilities of suffering from large destroy simultaneously in these cities. It is a very important basis for city groups dividing. From above research work, some basic understandings are obtained.

• 1) The influence of earthquake is indeed correlative for some cities, and the simultaneous rate of seismic intensity can be used to present this type of correlativity.

• 2) The correlativity of earthquake’s impact on cities correlates with seismotectonic circumstance surrounding cities and has indeterminate relation with spatial distance between cities.

• 3) The simultaneous rate of seismic intensity VI can be a primary basis for city group dividing. Because of lack of the data, the rate of larger intensity can only be a reference.

• 4) The cities that have higher correlativity have large chance to suffer from same level destroy in the same time, and they will hard to provide mutual-aiding during the future destructive earthquake. The knowledge about the correlativity of earthquake’s impact on cities will be very helpful to constitute regional general plan of earthquake prevention and mitigation.