A magnitude 8.0 (MW) earthquake occurred on 1928-06-17, 21:19 local time (03:19 UTC) (just now), centered 117 km S of Oaxaca (Mexico). The hypocenter was located at a shallow depth of 20 km. Primary telemetry verified by USGS alongside 1 regional seismic monitoring networks.
Curated Global Seismic Archive (1700–Present)
15.08 Mt TNT
shallow (Shallow crustal)
Injuries: > 5,000 · ~43.8M felt
Timeline of foreshocks, main rupture, aftershocks and machine learning risk probability evolution.
Shaking intensity is modelled from magnitude, depth and distance (GMPE attenuation), not reported by residents.
| Town | Distance | Intensity |
|---|---|---|
| Pochutla · Oaxaca | 63 km | MMI IX |
| Oaxaca · Oaxaca | 117 km | MMI VIII |
| Tlaxiaco · Oaxaca | 155 km | MMI VII |
| Ometepec · Guerrero | 172 km | MMI VII |
| Tehuantepec · Oaxaca | 185 km | MMI VII |
| Salina Cruz · Oaxaca | 187 km | MMI VII |
Independent solutions for the same rupture. Differences of 0.1–0.3 in magnitude are normal and reflect method and station coverage.
| Agency | Source ID | Magnitude | Depth | Epicenter |
|---|---|---|---|---|
USGS Primary | iscgem908744 | M 8.0 | 20 km | 16.07, -96.94 |
Nearest mapped active fault: Middle America Trench megathrust, 5 km away, slip rate ~15.0 mm/yr (GEM Global Active Faults).
View live seismic monitoring, historical danger benchmarks, fault slip models and recurrence intervals for this zone.