Observed earthquake
77 km ENE of Tuapejat, Indonesia
Recent observationReported by 3 agencies. Every solution below is that agency's own measurement, stored unaltered.
Agency solutions
The same earthquake as measured independently by each agency. Values are never averaged or rewritten.
| Agency | Magnitude | Depth | Origin time | Epicentre | Review status | Source record |
|---|---|---|---|---|---|---|
| GEOFONGFZ Helmholtz Centre for Geosciences | M4.9 mb | 33 km | 2026-10-09 09:47:46 UTC | 2.00°S, 100.03°E | Not stated | gfz2026tudt ↗ |
| USGSUnited States Geological Survey | M4.9 mb | 41 km | 2026-10-09 09:47:47 UTC | 1.89°S, 100.27°E | Reviewed by an analyst90 stations | us6000u14w ↗ |
| EMSCEuropean-Mediterranean Seismological Centre | M4.9 mb | 57 km | 2026-10-09 09:47:48 UTC | 1.89°S, 100.18°E | Not stated | 20261009_0000148 ↗ |
Source: Earthquake solutions from the GEOFON programme, GFZ Helmholtz Centre for Geosciences. · Retrieved: 2026-10-09 11:01:17 UTC · grouped with match confidence 88%
Source: Earthquake data courtesy of the U.S. Geological Survey. · Retrieved: 2026-10-09 11:02:18 UTC
Source: Earthquake data from the European-Mediterranean Seismological Centre (EMSC) via SeismicPortal. · Retrieved: 2026-10-09 10:47:09 UTC
Why the agencies differ
Differences of a few tenths of a magnitude unit and tens of kilometres are normal and expected. Each agency uses a different set of seismic stations, a different velocity model for the Earth's interior, and sometimes a different magnitude scale altogether. None of them is “wrong”; they are independent measurements of the same event.
Prakruti groups solutions only when they agree closely in both time and location, and shows the preferred solution — favouring an analyst-reviewed moment magnitude where one exists — while keeping every other solution visible above.