Authors: M. Pollino, G. Fattoruso, A. B. Della Rocca, L. La Porta, S. Lo Curzio, A. Arolchi, V. James and C. Pascale (2011). Presented at "Computational Science and Its Applications - ICCSA 2011 International Conference", Santander, Spain, June 20-23, 2011. The recent advances in geo-informatics have been opening new opportunities in earthquake early warning and emergency management issues. In the last years, the geo-scientific community has recognized the added value of a geo-analytic approach in complex decision making processes for critical situations due to disastrous natural events such as earthquakes. In fact, recently, GIS-based solutions are investigated in several research projects such as SIT_MEW Project, aimed at the development of volcanic and seismic early warning systems (EWSs). In this project context, an innovative open source GIS system has been investigated and developed as integrated component of the seismic EWS. Its architecture consists in a geospatial database system, a local GIS application for analyzing and modelling the seismic event and its impacts and supporting post-event emergency management, a WEB-GIS module for sharing the geo-information among the public and private stakeholders and emergency managers involved in disaster impact assessment and response management.

1. An Open Source GIS System for Earthquake Early Warning and Post-Event Emergency Management Maurizio Pollino 1 , Grazia Fattoruso 1 , Antonio Bruno Della Rocca 1 , Luigi La Porta 1 , Sergio Lo Curzio 1 , Agnese Arolchi 1 , Valentina James 2 , Carmine Pascale 2 1 ENEA - National Agency for New Technologies, Energy and Sustainable Economic Development 2 Consorzio TRE - Tecnologie per il Recupero Edilizio Remote sensing Data Analysis, modeling, interpretation and Applications: from a global view to a local analysis (RS 2011) University of Cantabria, Santander - June 20 th -June 23 th , 2011

3. Seismic waves (~ 3.5 Km/s) Information (speed of light) Epicenter Earthquake Early Warning Systems: Operating Principle The term “early warning” for seismic hazard implies an alert given after the detection of phenomena indicating the generation of a possibly dangerous event and before it starts damaging a given location. M, P T P (at the network) T S (at the target) T 0 time Telemetry and computing P-Arrival Lead Time ~ 10 sec Immediate post-event ~ 1 min Allarm Issue  Target Seismic Network

4. June 20, 2011 Early warning and real time earthquake risk mitigation The scale of alert times for earthquake is seconds to tens of seconds In case of earthquakes, Early Warning method is not a classical forecasting method. It can give probabilistic information after the event. The final aim of a seismic early warning system is to estimate in a fast and reliable way the earthquake damage potential. To reach this goal most of worldwide Earthquake early warning system are being designed or actually operated following two complementary approaches: the site-specific systems and the Regional systems

5. A major step may be the use of regional networks for the protection of multiple critical systems, and then a hybrid use of regional and on-site warning methods. Earthquake Early Warning Approach: June 20, 2011

7. June 20, 2011 The project context Integrated, broadband communication system for natural hazards emergencies management, including early warning methods The main goal of SIT_MEW Project is to develop an integrated system for emergencies management in case of natural disasters (seismic and volcanic) located in Campania Region, a seismically and volcanic active area. In particular, the attention is focused on the issues concerning risk assessment and mitigation, early warning (EW) methodologies and post-event support activities. SIT_MEW is based on data coming both from an existing seismic network located within the study area ( ISNet, Irpinia Seismic Network ) and it will improve an hybrid EWS.

8. Signal to the Network stations Seismic Network Epicentre Main control Centre Trasmission system Sensors measures Alarm Trasmission system Prototype of an hybrid Earthquake Early Warning System Event Propagation (5.5km/sec)

9. The kernel of the operating centre is a decision support system (DSS) that should enable the operators to make decisions and to disseminate early warning through a broadcasting system. The OC is supported by a GIS system that represents and performs the geographical information related to real time and near real time phases and the event source and analyses in few minutes the expected damages on structures and buildings. The System proposed:

10. June 20, 2011 SIT_MEW Operating Centre Architecture Data collection tools Data operations tools Data representation tools GIS TOOLS COMPUTATIONAL TOOLS

11. GIS logical architecture: schema Geodatabase Module Quantum GIS PostgreSQL/PostGIS WebGIS Client MapServer WebGIS Module SCENARIO (Epicentre & Magnitude) Internet Intranet June 20, 2011 Expected Damage Scenarios Operating Centre GIS Modulo

16. Vulnerability index I V Vulnerability indices for building typologies and construction age over the study area Vulnerability index modifiers depending of number of storeys and construction age June 20, 2011

18. WEB GIS Applications, MapServer June 20, 2011 The primary goal of the WEB-GIS Module is to make geographic data and thematic maps available to specific end-users and, potentially, to the public. The application allows the end-user to view spatial data within a web browser, without a specific GIS Desktop software. This Module provides interactive query capabilities and integrates the GIS solutions with other technologies.

19. Guidonia, 16 Giugno 2011

20. Guidonia, 16 Giugno 2011