The Earth never sits still: seismometers record thousands of tremors every day, and the significant ones appear in the U.S. Geological Survey feed within minutes. This free earthquake tracker shows the latest events worldwide straight from that feed — no page refresh, no account. Choose a period (the last 24 hours, 7 days or 30 days) and a minimum magnitude, and you get each quake’s strength, location, depth and how long ago it struck, newest first, with a colour badge that runs from grey for minor tremors to red for the rare major events. Clicking any earthquake opens its full USGS report, with maps, shake readings and technical detail.
How to use this earthquake tracker
The list loads automatically with the last 7 days of magnitude 4.5+ earthquakes — the level at which quakes start being widely felt and reported. Use the filters to widen or narrow the picture: drop to 2.5+ over 24 hours to see how busy a fault near you has been, or raise the bar to 6.0+ over 30 days for the month’s genuinely significant events. The summary card counts what matched and names the strongest quake, and the Refresh list button pulls the newest data — the USGS typically publishes a first reading within a few minutes of a quake and refines it afterwards, so early figures can shift slightly.
What the magnitude numbers actually mean
Magnitude is logarithmic: each whole step up is roughly 32 times more energy released. A magnitude 4 is a noticeable shake that rarely damages anything; a 5 can crack plaster and topple shelves near the epicentre; a 6 can seriously damage ordinary buildings in the area around it; a 7 or above is a major disaster-class event. Depth matters as much as strength — a magnitude 6 at 10 km down is far more destructive than the same quake at 300 km, which is why every entry here shows the depth next to the badge. Location wording follows the USGS convention: “49 km S of Ollagüe, Chile” means the epicentre sat 49 kilometres south of that town.
Why the tracker sometimes shows a tsunami note
When an undersea quake is strong and shallow enough to displace the water column, official centres evaluate a tsunami threat, and the feed marks the event. The 🌊 note in a listing means an alert or evaluation was issued for that quake — it is a pointer to check official local sources, not a prediction. If you live on a coast and feel a strong, long quake, the standing advice everywhere is the same: move to high ground first and check official channels second; do not wait for any website, including this one.
About the data
All readings come from the USGS Earthquake Catalog, the global reference dataset built from thousands of seismograph stations. Very small quakes outside well-instrumented regions can be missed, and magnitudes are occasionally revised as more stations report in — the number you see is the current official one, and the linked USGS page always carries the latest revision. For a single country’s official word, national geological services sometimes publish faster local readings; this tracker is the worldwide picture in one place.
Aftershocks: why one quake becomes a cluster
A large earthquake rarely travels alone. The mainshock rearranges stress along the fault, and the surrounding rock answers with aftershocks — sometimes hundreds over the following weeks, usually smaller than the main event and fading in frequency with time, a pattern seismologists call Omori’s law. In this tracker they appear as a tight family of entries sharing a place name in the hours and days after a big one. An entry in a cluster is not a new disaster unfolding; it is the same fault settling. The notable exception to watch for is the rare case where an “aftershock” turns out larger than the first quake — at which point the earlier event is reclassified as a foreshock.
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