Earthquake · Reviewed by USGS
M4.0 earthquake 34 km WSW of San Martín, Argentina
A magnitude 4.0 earthquake struck 34 km WSW of San Martín, Argentina at Jul 28, 2026, 01:37 UTC, at a depth of 35 km. The epicentre was 17 km (10 mi) SSE of Perdriel. 16 people reported feeling it to USGS.
Details
| Magnitude | 4.0 mwr |
|---|---|
| Time | Jul 28, 2026, 01:37 UTC |
| Depth | 35.0 km |
| Coordinates | -33.209, -68.806 |
| Felt reports | 16 |
| Tsunami flag | None |
| Source | USGS event page |
02 — Around it
Other earthquakes within 100 km
| Magnitude | Location | Distance | Depth | Time |
|---|---|---|---|---|
| 3.9 | 29 km S of Mendoza, Argentina | 7 km / 4 mi | depth 10 km |
USGS can revise magnitude and location after the first report. See magnitude vs intensity and aftershocks.