Design one single mobile app icon for the App Type, using the Icon Concept as the central symbol. Follow the Icon Style and use the Color Palette with strong contrast. Present it as a real App Store or Google Play icon: a rounded-square iOS squircle centered on a plain, very light neutral background, filling about 70 percent of the square 1:1 canvas, with a soft subtle shadow beneath it. Keep the symbol bold, centered and comfortably padded, with a strong silhouette, crisp edges and smart negative space so it remains instantly readable at small sizes. Use only a few simple shapes and no detailed scene or illustration. The seismograph line should transition clearly into a house roof without becoming thin or fragile. Show no device, hands, mockup, text outside the icon, extra objects, glow, sparkles, photographic texture, watermarks or resemblance to an existing logo or app icon.
Use these details:
App Type: "Earthquake alert app"
Icon Concept: "A seismograph line rising into the shape of a house roof"
Icon Style: "Flat icon with clean solid shapes"
Color Palette: "Red symbol on a white background"
Using your own logo, product or face? Attach it in the chat and say which of the details it replaces.
Your result will come out close to the example rather than identical to it. Change the details to make it yours.