When I was twelve, sitting in a Jakarta classroom, the ground began to shake. None of us knew what to do. In those seconds of confusion, I learned that knowledge without practice is useless when your hands are shaking.
Indonesia experiences over 11,000 earthquakes annually, yet most students have never practiced a single drill. The gap between knowing and doing costs thousands of lives every year.
QuakeSense transforms earthquake survival training into a 2-minute interactive simulation. Instead of reading instructions, you experience a realistic earthquake in three escalating phases:
- P-wave — the early-warning rumble. Time to think.
- S-wave — violent shaking, falling debris, split-second decisions.
- Aftershock — the danger isn't over. Stay in position.
Every session builds muscle memory for the Drop–Cover–Hold-On response.
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| Train for the shake. | P-wave. S-wave. Aftershock. | Pick your nightmare. |
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| Drop. Cover. Hold on. | You survived. | 16 evidence-based tips. |
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| Framework | Use |
|---|---|
| SwiftUI | All UI screens — onboarding, menus, debrief, settings |
| SpriteKit | Physics simulation — 50+ interacting bodies (shelves, glass, debris) |
| CoreHaptics | Scientifically-informed seismic haptic patterns synced to visual shake |
| CoreMotion | Accelerometer tilt control for moving the player character |
| AVFoundation | 7-channel procedural audio engine — no external audio files |
| AppIntents | Siri Shortcuts integration |
Zero external dependencies. Every texture, sound, and haptic pattern is generated procedurally.
- VoiceOver with semantic labels + live announcements during gameplay
- Dynamic Type at every size
- Reduce Motion mode replaces screen shake with visual indicators
- Adjustable haptic intensity (10–100%)
- High contrast support
Play in browser (no install): Appetize.io embed (Note: tilt control and haptics are not available in the browser — use a device for the full experience)
On your iPad/Mac:
- Clone or download this repo
- Open
QuakeSense.swiftpmin Swift Playgrounds 4 on iPad or Mac - Tap Run
Build in Xcode:
open QuakeSense.swiftpm
# Select "iPhone 15 Pro" simulator, press Cmd+RTraining content is grounded in guidelines from USGS, the Red Cross, and BMKG Indonesia. Sixteen evidence-based survival tips span Before / During / After phases, presented as interactive checklists that require active engagement.
The decision engine uses game-design principles — combo multipliers, time bonuses, consequence feedback — to convert safety information into procedural knowledge.