Tremo: Earthquakes & Alerts

Tremo tells you within seconds which earthquakes are happening and whether you might feel them where you are. No jargon, official data, in your language.

🔔 ALERTS BASED ON WHAT YOU'D FEEL
• One rule for everything: the estimated intensity at your places (your location and up to 4 more: home, work, family) from distance, depth and magnitude. A distant quake you wouldn't feel won't scare you.
• It only sounds if you'd feel it; the rest arrives silently. If you prefer, filter by magnitude from M2.
• Full-screen alarm even when the phone is locked, with its own siren, voice and vibration.
• Quiet hours that always let a strong earthquake through.
• One alert per earthquake, even when several networks report it.
• If the S wave hasn't reached your place yet, you'll see the countdown.

⚡ OFFICIAL SOURCES, INSTANTLY
• Colombian Geological Survey (SGC), USGS, EMSC and GFZ, backing each other up: if one network goes down, the others keep going.
• Tremo learns within seconds that a network has published an earthquake.

🗺️ LIVE MAP
• Satellite, 3D terrain, tectonic plates and a density map.
• Magnitude and period filters, plus downloadable history.
• Watch the P and S waves travel from the epicenter and work out how many seconds of warning you'd get.

📡 TREMO NETWORK (TESTING)
• Your phone can be an earthquake sensor while it's charging and still.
• "It's shaking!" button to report what you feel.
• Public scoreboard of hits and false alarms. It is in testing today: it is compared with official catalogs and does not send alarms yet.

🆘 SOS THAT WORKS OFFLINE
• What to do during and after an earthquake, step by step.
• "I'm trapped" mode: an alarm that keeps sounding with the screen off, SOS in Morse code, flashlight and an SMS with your location.
• Quick actions in the notification: SOS, "It's shaking!" and Map.

🧪 AN HONEST LAB
• Probabilities from scientific models (Gutenberg-Richter, Reasenberg-Jones and BPT), tested on 16 years of data, that publish their hits and misses.
• Nobody can predict an earthquake, and Tremo says so plainly.

📚 LEARN TO GET READY
• 69 short lessons from the book "Seismic Mastery" in 12 units, quizzes, 24 badges and a verifiable diploma.
• Emergency kit, family plan and a step-by-step user guide.

👥 COMMUNITY
• Chat by country with moderation, friends and private chats.
• Photos and voice notes that delete themselves after 30 minutes.
• Ask Tremo, your earthquake assistant.

🌍 14 LANGUAGES

⭐ TREMO PLUS (optional)
One payment of 2.99 USD, forever: no ads, a Plus badge, 3 exclusive Tremos for your avatar, more questions to the assistant and first to try what's new. Alerts, map, SOS and the course are free for everyone, always. The free version shows discreet ads, never in SOS or during an alert.

IMPORTANT: Tremo does not predict earthquakes. Its alerts use what official networks publish, so near the epicenter the shaking may arrive before the alert. In an emergency, follow your local authorities.

Web: https://tremo.net · Privacy: https://tremo.net/privacy

Recent changes:
Tremo 1.0.8

- Improvements to the earthquake alert system.
- Performance and stability optimizations.
- Improvements to Tremo Plus and the user experience.