Estructura Segura: Earthquake

Estructura Segura is a free app for a first structural damage assessment of your house or building after an earthquake, hurricane or flood. It works offline, with no internet or cell signal: it measures wall tilt and crack width with your phone's sensors and camera, and shows a clear green, yellow or red traffic-light result. When networks go down after a disaster, knowing whether you can stay in your home or need to evacuate is urgent. Estructura Segura guides you step by step and creates a report you can share with your family, emergency services or local authorities. KEY FEATURES • Tilt meter: a digital level that uses the accelerometer to detect leaning walls and columns, with alarm and vibration. • Camera crack gauge: measures crack width in millimeters using a coin or card as a size reference. • Traffic-light result: green, yellow or red depending on the risk level, with a clear recommendation. • Offline GPS location: saves the coordinates of every assessment. • PDF report: a lightweight document with your measurements and location, ready to share. • Coded emergency SMS: the app prepares a short message with your assessment and alerts you when it detects signal; you send it with one tap from your messaging app. • Phone-to-phone support network (optional): passes reports over Bluetooth or Wi-Fi to nearby phones that have signal. • Offline crack gallery: examples to tell dangerous cracks from cosmetic ones. • Survival and first aid guide available without internet. • OLED black theme and battery saving to make your power last during an emergency. • Available in 9 languages: Spanish, English, French, German, Portuguese, Chinese, Japanese, Russian and Hindi. HOW TO USE IT 1. Place your phone against the wall or column to measure its tilt. 2. Photograph each crack with a coin or card next to it and mark its edges. 3. Review the result and the recommendation. 4. Create the PDF or send the emergency SMS when you have signal. FREQUENTLY ASKED QUESTIONS How do I know if my house is safe after an earthquake? Check whether walls or columns are leaning and whether there are wide or diagonal cracks, or cracks in beams and columns. Estructura Segura measures both and tells you the risk level. Which cracks are dangerous? In general, wider cracks, diagonal cracks and cracks in structural elements indicate higher risk. The app compares your measurement with reference thresholds, and the gallery shows you examples. Does it work without internet? Yes. Measurements, GPS, the PDF, the gallery and the guide all work offline. Only sending the SMS needs cell coverage. Do I need to create an account? No. Your assessments are stored only on your phone. IMPORTANT NOTICE Estructura Segura is a guidance tool for a first assessment and does not replace an inspection by a structural engineer or the authorities. If in doubt, evacuate and request a professional inspection. The app contains ads, which never appear on the measurement screens or on the result.

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