Earthquake LogM7.3 earthquake, Chagos Archipelago, 1983-11-30
MagnitudeM7.3mw
This page is updated only once a day and is not an alert service. For current earthquake and tsunami information, check the Japan Meteorological Agency, the USGS and your local authorities.
Depth10 km
Time (UTC)1983-11-30 17:46
Rank in 19836 / 136among M6+
Rank since 1900729 / 14,458
Energy vs an M6×89approx.
Chagos Archipelago region · -6.85, 72.11
M6.5+ within 300 km (largest first)
M7.3
Earlier M6+ within 300 km
| Event | Time (UTC) | Depth | Place |
|---|---|---|---|
| M6.3 1965-09-12 | 1965-09-12 22:02 | 10 km | Chagos Archipelago region |
| M6.0 1957-10-02 | 1957-10-02 20:58 | 15 km | Chagos Archipelago region |
| M6.2 1912-05-11 | 1912-05-11 17:26 | 10 km | Chagos Archipelago region |
Energy ratio uses the rule that one magnitude unit is about 32 times the energy. Magnitudes and locations are USGS values and can differ from national agencies. Older records are less complete and less precise.