🌍 Earthquake Notification & SOS Alert System

This is a serverless project that provides real-time earthquake monitoring and automated voice alerts using AWS services.

Overview

The Earthquake Notification & SOS Alert System monitors real-time earthquake data from the European Seismological Agency API. If an earthquake occurs within a user's defined radius, the system automatically triggers an outbound voice call to alert their nominated contact.

Users can register their details—including their name, location, and the desired alert radius—through a web frontend powered by Leaflet.js. This information is securely stored in an Amazon DynamoDB database. A dedicated AWS EC2 instance runs a WebSocket client that listens for earthquake events and initiates alerts via Amazon Connect or Twilio.

Key Features

• User-Defined Radius: Alerts are triggered only when an earthquake falls within a user's specified range.
• Automated Voice Calls: Uses Amazon Connect or Twilio for automated, outbound voice notifications.
• Interactive Map: An intuitive, interactive map built with Leaflet.js simplifies location selection.
• Serverless Subscriber Storage: User data is stored efficiently and scalably in DynamoDB.
• Real-Time Monitoring: A persistent WebSocket connection ensures the system is always monitoring for the latest earthquake events.

Tech Stack

Frontend

• HTML, CSS, JavaScript
• Leaflet.js for interactive map functionality
• Hosted on AWS S3 for static website hosting

Backend

• AWS Lambda: Handles the user registration endpoint.
• AWS API Gateway: Exposes the Lambda function to the web frontend.
• Amazon DynamoDB: Stores all subscriber information.
• Amazon Connect / Twilio: Used for sending automated outbound voice calls.
• AWS EC2: Hosts the WebSocket client that processes the earthquake feed.

Data Source

• European Seismological Agency Standing Order WebSocket API