QuakeSignal brings earthquake reports, nearby context, and practical preparedness guidance together in a focused iPhone app. FOLLOW LIVE EARTHQUAKE INFORMATION View normalized reports from multiple third-party sources, including JMA, CENC, Sichuan, Fujian, and Chongqing feeds aggregated through the Wolfx Open API. UNDERSTAND WHAT IS NEARBY Choose a city or use your current location to see distance, direction, magnitude, intensity, depth, and report timing in context. Filter events by source, time, and magnitude, or explore epicenters on the map. RECOGNIZE EVERY STATUS Preliminary, updated, final, cancelled, and training messages use distinct labels, icons, and colors. Event details preserve a report-revision timeline when updates are available. OPTIONAL LOCAL ALERTS When you choose to enable notifications, QuakeSignal can send nearby alerts for reports that match your selected sources, magnitude, city or approximate location, and radius. This optional feature is best-effort, not a government emergency service, and not a replacement for official alerts. PREPARE OFFLINE Keep drop-cover-hold-on guidance, situation-specific safety actions, an emergency kit checklist, and family check-in notes available even without a network connection. ACCESSIBLE AND LOCALIZED QuakeSignal supports English, Japanese, and Simplified Chinese, along with Dynamic Type, VoiceOver-friendly labels, system appearance, and clear status treatments. IMPORTANT: QuakeSignal is an independent, non-official app. Information is provided by third-party aggregated sources and may be delayed, incomplete, revised, or inaccurate. Notifications are best-effort and are not guaranteed. Always follow official announcements and local emergency instructions.