MODERATE EARTHQUAKE
51 km WSW of Arauco, Argentina
A magnitude 5.3 earthquake struck 51 km WSW of Arauco, Argentina on 23 Sept 2026, 09:21 UTC. The hypocentre was 121.5 km below the surface — intermediate by seismological convention. No felt reports have been received so far. The figures have been revised 4 times since the first report.
- Depth
- 121.5 km
- Latitude
- 28.73°S
- Time
- 09:21 UTC
- Magnitude
- M5.3
intermediate
67.29°W longitude
23 Sept 2026
mww
EPICENTRE
MAGNITUDE 5.3
Can damage poorly constructed buildings; well-built structures usually escape with little harm.
The scale is logarithmic: this released about 89 times the energy of a magnitude 4.0, roughly the energy of 1 thousand tonnes of TNT.
121.5 KM DEEP
At this depth the energy spreads before it reaches the surface. Shaking is usually weaker than a shallow earthquake of the same size, but it can be felt across a wider area.
OTHER RECENT EARTHQUAKES
23 Sept 2026, 08:41 UTC · 10 km deep
23 Sept 2026, 05:46 UTC · 141.2 km deep
23 Sept 2026, 04:46 UTC · 10 km deep
23 Sept 2026, 04:36 UTC · 10 km deep