📡 IoT Earthquake Monitoring Web Application

An end-to-end IoT solution that monitors structural vibrations and seismic data in real-time. This system uses an ESP32 microcontroller coupled with an MPU6050 accelerometer to capture telemetry, routes it via an cloud MQTT Broker, and streams it to a web-based dashboard using WebSockets for live seismograph visualizations and instantaneous alert triggering.

---

🏗️ System Architecture

1. Hardware Node (Edge): The ESP32 continuously polls the MPU6050 sensor to calculate 3D acceleration vectors ($g$-force forces).
2. IoT Data Bridge (Ingestion): Telemetry is wrapped into lightweight JSON payloads and published to an MQTT Broker over Wi-Fi.
3. Application Server (Backend): A Node.js engine subscribes to the MQTT topic, processes the stream, and distributes it instantly to active clients via Socket.io.
4. Live Dashboard (Frontend): A responsive web UI rendering real-time scrolling seismographs using Chart.js, flashing visual alarms during critical structural alerts.

---

📂 Repository Layout

├── hardware/
│   └── esp32_seismic_node.ino   # Arduino core ESP32 sensor firmware
├── server/
│   ├── package.json             # Node.js backend environment configurations
│   └── server.js                # Express app & MQTT-WebSocket broker relay
└── public/
    └── index.html               # Frontend dashboard UI with real-time Chart.js