Major earthquake
M7.3 Earthquake — Chagos Archipelago region
1983-11-30 17:46 UTC · -6.85°, 72.11°
A magnitude 7.3 (major) earthquake struck Chagos Archipelago region on 1983-11-30 17:46 UTC, at a depth of 10 km. See it live on Earth Live's real-time 3D globe.
M7.3
Magnitude
10 km
Depth
1.3M t
TNT equivalent
I
Max intensity (MMI)
Source: USGS event page. The TNT equivalent is computed from the magnitude with the standard Gutenberg–Richter energy relation; all other figures are USGS's own.
This area's earthquake history
In the year before this quake, USGS recorded 0 earthquakes of magnitude 2.5 or more within 300 km.
Strongest recorded within 300 km since 1900:
- M6.3 — Chagos Archipelago region · 1983-12-03
- M6.3 — Chagos Archipelago region · 1965-09-12
- M6.2 — Chagos Archipelago region · 1912-05-11
More recent earthquakes
- M5.5 — 92 km NNW of Aleneva, Alaska
- M5.1 — 34 km NNW of Bāgeshwar, India
- M5.9 — 264 km SSW of Severo-Kuril’sk, Russia
- M4.7 — Chagos Archipelago region
- M4.5 — Kermadec Islands region
- M4.9 — 48 km NNE of Semporna, Malaysia
- M4.9 — 55 km ESE of Kokopo, Papua New Guinea
- M4.5 — 60 km WNW of Colchani, Bolivia
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