Tremula monitors earthquakes, official weather alerts, wildfire hotspots, floods, auroras, ISS passes, asteroids, and solar activity — helping you see what is happening near you and around the world.
Live data streams from public scientific and government sources, delivered in one simple map and event feed.
Real-time USGS seismic data. See M4.5+ events globally and M2.5+ near you, with magnitude, depth, and location — within minutes of occurring.
NOAA Kp index updated every 3 hours. Know when the northern lights might be visible from your latitude tonight — from quiet to extreme storm.
Real-time International Space Station location. See exactly where it is right now and how far from you — with context about what region it's flying over.
NASA close approach data for the day, plus upcoming meteor shower alerts with peak rates and viewing tips — loaded even without a connection.
Official NWS alerts, NASA FIRMS thermal hotspot detections, NASA EONET regional event context, and flood-related awareness in one live map.
NASA DONKI solar flares and CME activity, plus NASA Astronomy Picture of the Day for a daily look at space.
No scraped social data. Tremula uses public scientific and government data sources, with selected NASA-backed data routed through a small Cloudflare Worker so API keys are not stored in the app.
No account. No subscription. Just download and go.
Download on the App Store