Data sources & method

Source	What it contributes	Location handling
USGS Earthquake Hazards Program	Magnitude 4.5+ earthquakes (full sweep) and magnitude 2.5+ / significant quakes (every 10 minutes).	Exact epicentre coordinates, magnitude, depth, tsunami flag.
GDACS — Global Disaster Alert and Coordination System	Earthquakes, tropical cyclones, floods, wildfires, droughts, volcanic activity worldwide.	Centroid coordinates, alert level (green / orange / red), affected countries, event reports.
NASA EONET — Earth Observatory Natural Event Tracker	Open natural events: wildfires, severe storms, volcanoes, sea and lake ice, icebergs, dust haze.	Latest geometry per event (point or polygon centroid) plus the observing source link.
Wikipedia — Portal:Current events	The human-curated daily world digest, by section: armed conflicts, disasters, politics, economy, health, culture, sport.	Country attribution from the article text; city-level coordinates when a place is named, otherwise the country marker.
Wikidata	Scheduled events already on the calendar — elections and referendums in the next 150 days.	Country from the event item, coordinates when the item carries them.
GDELT Project — DOC 2.0 API	What each country's media is covering right now, across politics, economy, crime, sport, technology and culture.	Country of the publishing outlet; city-level coordinates when the headline names one.
Wikipedia schedule tables	Upcoming fixtures that are known in advance — UFC fight cards and Formula 1 race weekends.	Venue city and country, geocoded against the GeoNames gazetteer.
GeoNames	Reference gazetteer (34,000 cities) and country metadata used for geocoding and country attribution.	City coordinates, population, country codes, country bounding boxes.

• Every 10 minutes — lightweight hazard sweep: USGS earthquakes, GDACS alerts, NASA EONET natural events. These are the sources that change by the minute.
• Every day — full sweep: Wikipedia Current events digests for the last four days, Wikidata elections and referendums, GDELT coverage for 64 countries, and the UFC / Formula 1 schedule tables.
• Deduplication — each event carries a stable id derived from the source record, so updates refresh an existing event instead of duplicating it. Events older than 75 days drop out of the feed.
• Country attribution — polygon test first (Natural Earth 110m geometries), then the nearest country within 450 km for offshore events, then country names and sub-national regions (US states, Canadian provinces, …) found in the text.

• /api/events.json — every event with category, timestamps, coordinates and source links.
• /api/countries.json — country metadata with event counts, upcoming counts and category mix.

Both endpoints are served live from object storage behind the site and can be used in your own project; please credit the original publishers linked on each event.