The San Francisco Chronicle has developed an innovative system using Mapbox GL JS to provide real-time, interactive earthquake visualizations for California residents. This tool displays crucial information such as quake strength, distance from the epicenter, and fault lines as events unfold, enabling residents to make informed safety decisions. By systematically collecting and processing data from four U.S. Geological Survey feeds every minute, the Chronicle's DevHub team ensures that updates are automatically published when seismic activity surpasses set thresholds. The visualizations utilize color-coded intensity contours and Mapbox's flyTo function to enhance user experience, aligning with the high-quality standards expected by the Chronicle's subscribers.