**3.2 Earthquake hazard maps created by the IGRAS system during the** *Mw* **5.8 Silivri earthquake**

During the *Mw* 5.8 Silivri earthquake, the real-time earthquake ground motion data was obtained by the rapid response and risk mitigation system in İstanbul.

#### **Figure 3.**

*PGA distribution map created at 14:06:50.*

**Figure 4.** *PGA distribution map created at 14:35:40.*

*Urban Damage Assessment after the* Mw *5.8 Silivri Earthquake: The Case of Istanbul City DOI: http://dx.doi.org/10.5772/intechopen.109758*

**Figure 5.** *PGA distribution map created at 15:02:14.*

**Figures 3**–**5** illustrate PGA hazard maps automatically generated by the network at intervals of about 30 minutes after the earthquake. As the network updates the data collected after the event, the PGA distribution and earthquake information change for each map, especially between the first and the last two maps created. Figures show that the final PGA is between 0.3 and 0.40 g.
