Event Detail View
The event detail page presents comprehensive information about a single disaster event, including measurements, timeline, affected areas, linked news, AI summaries, and knowledge base entries.
Overview
When you click on an event from the dashboard, you are taken to the event detail page. This page aggregates all available information about the disaster — raw measurements from data sources, enriched knowledge from web crawling, AI-generated summaries, and linked documents.
Screenshot: Event detail page header showing event title, type icon, alert level badge (RED), location, date, and a small map centered on the event
Event Header
The top of the page displays the essential event information:
- Title — A descriptive title generated from the event data (e.g., "M 7.1 Earthquake - Southern Chile")
- Event Type Icon — Visual indicator of the disaster category
- Alert Level Badge — Color-coded badge showing RED, ORANGE, or GREEN
- Location — Country and region name, derived from reverse geocoding
- Coordinates — Latitude and longitude
- Date/Time — Event onset time in UTC, with local time where applicable
- Source — Which data source reported this event (GDACS, USGS, NHC)
- Source ID — The unique identifier from the originating system
A small map to the right of the header shows the event location with an affected area radius overlay.
Measurements Panel
The measurements section displays event-type-specific quantitative data. The fields vary by disaster type:
Earthquake
| Measurement | Description |
|---|---|
| Magnitude | Richter/moment magnitude scale value |
| Depth | Focal depth in kilometers |
| Affected Population | Estimated population within impact radii |
| Country Exposure | Countries with population in affected zones |
Tropical Cyclone
| Measurement | Description |
|---|---|
| Maximum Wind Speed | Sustained winds in km/h or knots |
| Category | Saffir-Simpson scale category (1-5) |
| Central Pressure | Minimum pressure in hPa/mbar |
| Storm Radius | Extent of tropical-storm-force winds |
Flood
| Measurement | Description |
|---|---|
| Severity | Flood severity classification |
| Affected Area | Estimated area in square kilometers |
| Magnitude | Flood magnitude index |
| Duration | Expected or observed duration |
Screenshot: Measurements panel for an earthquake event showing magnitude 6.8, depth 35km, affected population 2.4M, and a severity gauge
Timeline
The timeline section shows the chronological history of the event:
- Event onset — When the disaster was first detected
- Source updates — Each time the data source publishes revised information (upgraded magnitude, changed alert level, new advisories)
- Enrichment milestones — When web search, crawling, and AI processing completed
- Alert level changes — Visual indicators when the event was upgraded or downgraded
Screenshot: Vertical timeline showing event progression from initial detection through multiple updates, with timestamps and alert level change indicators
Each timeline entry shows a timestamp, a description of what changed, and the source of the update. Alert level changes are highlighted with color transitions.
Affected Countries
A table lists all countries affected by the event, based on GeoPop population exposure analysis:
| Column | Description |
|---|---|
| Country | Country name and flag |
| Affected Population | Estimated population within impact radius |
| Distance | Distance from event epicenter to nearest populated area |
| Deployment Likelihood | Organization-specific configuration (Y/P/N) |
Countries are sorted by affected population in descending order. The deployment likelihood column reflects your organization's country configuration matrix, helping teams quickly assess whether response is expected.
News Articles
The news section displays articles discovered through the automated search and crawling pipeline. Each article has been validated by the LLM news filter agent for relevance.
Screenshot: News articles section showing a grid of article cards with titles, source names, publication dates, and brief excerpts
Each article card shows:
- Title — Article headline (linked to the original URL)
- Source — Publication name
- Published Date — When the article was published
- Excerpt — First few sentences of the crawled content
- Relevance Score — AI-assessed relevance to the event
Articles can be sorted by date or relevance score. The system continues to discover new articles as the event develops.
AI Summary
The AI summary section provides a synthesized overview generated by the AI agent. The summary draws from all indexed knowledge base entries, measurements, and event metadata.
Screenshot: AI summary panel showing a multi-paragraph summary of the event with key facts highlighted, and a "Regenerate" button
Summaries cover:
- What happened and when
- Current situation and severity
- Affected population and areas
- Response actions reported in news sources
- Key developments and outlook
You can regenerate the summary at any time to incorporate newly discovered information. The summary is generated using RAG (Retrieval-Augmented Generation), pulling the most relevant knowledge base entries as context.
Knowledge Base Entries
Below the AI summary, you can browse all indexed knowledge base entries for this event. These are the full crawled and processed documents that feed into the AI summary and RAG chat.
Each entry shows:
- Document title and source URL
- Content type (news article, SITREP, official advisory, report)
- Date indexed
- Content preview
Documents & SITREPs
Official documents such as Situation Reports (SITREPs), impact assessments, and government advisories are listed separately when available. These are typically PDF or structured documents discovered through the enrichment pipeline.
RAG Chat
At the bottom of the event detail page, you can open the RAG chat interface to ask questions about the event. The chat uses semantic search over the event's knowledge base to provide grounded answers.
Example questions:
- "What is the latest casualty estimate?"
- "Which humanitarian organizations have responded?"
- "What are the main access constraints?"
- "Summarize the government's emergency declaration"
Next Steps
- Knowledge Base — How knowledge discovery and indexing works
- Reports — Generate comprehensive reports from event data
- Dashboard — Return to the main event map
Dashboard & Event Map
The main TerraGuard dashboard provides a real-time map of disaster events worldwide, with filtering, severity indicators, and quick access to event details.
Knowledge Base & AI Summaries
How TerraGuard discovers, crawls, validates, and indexes external knowledge for each disaster event, enabling AI summaries and RAG-powered question answering.