TectoWave: Earthquake Tracker

Zigsa

About this app

TectoWave is an earthquake tracker for people who want to know what is shaking around the world and near the places they care about. It brings recent earthquakes from several public seismic networks into one clean feed and one interactive map, adds NOAA tsunami bulletins, and notifies you about the places you choose.

Not an early-warning system
TectoWave is an informational earthquake tracker. It is not an early-warning system and does not replace your country's official alerts, such as Android Earthquake Alerts or national warning services. Use it to stay informed and to review activity, not for safety-critical, split-second decisions.

Key features
• One feed from three networks: earthquake records from USGS, EMSC and GEOFON are merged and de-duplicated, so a quake reported by several networks appears once.
• Interactive map: every event of the last 24 hours, with plate boundaries and event clusters. Pins show the magnitude on its colour; in the feed and in event details a shape also marks the level, for colour-blind accessibility.
• Places you get notified about: up to 10 places, each with its own minimum magnitude and radius (M4.5 within 1,000 km by default). Places never hide events from the feed or the map.
• One notification per check: if several events match, you get one for the strongest, with a count of the others.
• Tsunami bulletins: NOAA Pacific and National Tsunami Warning Center (PTWC, NTWC) messages in the app; Watches, Advisories and Warnings also on a dedicated high-priority notification channel. PTWC threat messages forecast wave heights without an alert level; for those, TectoWave shows its own reading of the forecast and says so.
• Filters: narrow the feed and the map by magnitude and by distance from where you are or from one of your places.
• Event details: depth, distance from your nearest place, and "Did You Feel It?" felt reports and community intensity where USGS has them.
• The last 24 hours at a glance: an activity chart above the feed shows recent trends.

Why TectoWave
• More events, fewer duplicates: three global networks in one list instead of three apps.
• Your places, your thresholds: you decide which magnitude and distance are worth a notification.
• 23 languages with an in-app picker, right-to-left included, in light and dark theme.

Data sources
TectoWave is an independent app. It is not a government app and does not represent any government or political entity, including USGS and NOAA. It shows public information published by these sources, where you can check it:
• U.S. Geological Survey (USGS), U.S. government: https://earthquake.usgs.gov
• NOAA Tsunami Warning Centers (PTWC, NTWC), U.S. government: https://www.tsunami.gov
• European-Mediterranean Seismological Centre (EMSC): https://www.seismicportal.eu
• GFZ GEOFON, Potsdam: https://geofon.gfz.de
TectoWave is not affiliated with or endorsed by any of them.

Privacy
• No ads, no account, no sign-in.
• No analytics or crash reporting of our own, and no backend: nothing is sent to us.
• Your places and settings are stored on your device and are never sent to us.
• Maps are drawn by the Google Maps SDK. While a map is on screen, Google receives the map area shown, which can include one of your places, and the SDK's own technical data (device details, a pseudonymous ID, crash and map-interaction data). See the Privacy Policy and the Data safety section.

Permissions
Asked for: notifications and, optionally, approximate location (to add a place where you are and to measure distances from you). Granted at install: network access and starting at boot, so background checks resume after a restart.

TectoWave is an earthquake tracker that shows the data plainly and leaves warnings to official services.

What’s new

First public release of TectoWave, an informational earthquake tracker. Earthquake map, multi-source quake feed and tsunami bulletins. No ads or account. Not an early-warning system.