A magnitude 8.4 (MW) earthquake occurred on 2001-06-23, 15:33 local time (20:33 UTC) (9251d ago), centered 226 km W of Arequipa (Peru). The hypocenter was located at a shallow depth of 33 km. Primary telemetry verified by USGS alongside 1 regional seismic monitoring networks.
Curated Global Seismic Archive (1700–Present)
60.04 Mt TNT
shallow (Shallow crustal)
Injuries: > 5,000 · ~22.8M 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 |
|---|---|---|
| Camaná · Arequipa | 106 km | MMI VIII |
| Mollendo · Arequipa | 192 km | MMI VIII |
| Nasca · Ica | 212 km | MMI VII |
| Arequipa · Arequipa | 226 km | MMI VII |
| Ilo · Moquegua | 289 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 | official20010623203314130_33 | M 8.4 | 33 km | -16.27, -73.64 |
Nearest mapped active fault: Unnamed Fault, 5 km away, slip rate ~15.0 mm/yr (GEM Global Active Faults).