## 5 Hazard Explorer GIS Application  
To complement the hazard analysis presented earlier and to promote public awareness of the multiple natural hazards affecting Lefkas Island--a popular tourist destination--a web-based application was developed, titled Lefkas Island Hazard Explorer. The application is freely accessible at [[https://arcg.is/0](https://arcg.is/0) XWX1G]([https://arcg.is/0](https://arcg.is/0) XWX1G) (accessed on 5 July 2025) and aims to inform both residents and visitors about various geohazards beyond the well-known seismic risk. Through interactive maps and accessible information, the app functions as an educational and awareness tool that encourages community preparedness and safety. Unlike expert-focused platforms--such as that of [PERSON] et al. (2025) [42], which integrates satellite data, contextual information, and advanced semantic techniques for glacier monitoring--this application is designed for a general audience. It prioritizes simplicity, accessibility, and ease of use, offering clear hazard visualizations and basic guidance rather than advanced geospatial analysis or remote sensing interpretation. The application was developed using ArcGIS Experience Builder [25], chosen for its flexible layout and ability to integrate dynamic content and interactive mapping. The platform supports intuitive design and is suitable for users with varied levels of technical experience. The Lefkas Island Hazard Explorer consists of several core components:  
* Home Page;
* Four hazard-specific pages (flood, landslide, wildfire, and desertification);  
Figure 19: Multi-Hazard Map of Lefkas Island, integrating flood, landslide, wildfire, and desertification hazards. The map illustrates the spatial distribution of hazard intensity across the island and highlights the exposure of settlements to overlapping geohazards. * Two additional pages: \"How to Use\" and \"Explore Maps\";
* Nine fixed informational windows, including a disclaimer, four hazard explanation panels, and four contact windows linking to relevant authorities. Home Page: The Home Page (Figure 20) provides a visual overview of Lefkas Island and buttons to navigate to the \"How to Use\" and \"Explore Maps\" pages. Sharing options, a QR code generator, and an embed link are also available. Upon first access, users are required to accept a disclaimer that clarifies the academic and informational nature of the app. It emphasizes that the application is not an official hazard warning or emergency response tool and should not replace advisories issued by government agencies. How to Use Page: This page offers a concise explanation of the app's purpose, intended audience, and instructions on how to use its features. It helps ensure that users--regardless of familiarity with GIS--can explore the content with ease. Explore Maps Page: The \"Explore Maps\" page acts as a gateway to the four hazard-specific maps. Each hazard is represented by an image tile; clicking one leads to the corresponding hazard page facilitating easy access to specific hazard information (Figure 21). Hazard Pages: Each of the four hazard pages includes a map pane and a side panel (Figure 22). In the map pane, a map shows the spatial distribution of the hazard using the  
Figure 21: Screenshot showing the Home Page of the Lefkas Island Hazard Explorer. Users can select to see inform. 25 m resolution, while a pie chart summarizing the percentage of the area covered by each hazard category. Tools for zooming, panning, changing basemaps, and toggling data layer are present. In the side panel, descriptive text is explaining the methodology, key map features, and the location of high/low-risk zones. Navigation buttons to switch between hazard pages, return to the Home Page, or access general hazard information followed by links to official organizations are present at the top. The application features a simple and intuitive navigation design, with clearly labeled buttons that make it easy for users to move between pages.