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Regional seismicity

Mauritius itself sits on stable, essentially aseismic oceanic crust — virtually all regional seismicity happens hundreds of kilometres away on the Mid-Indian Ridge, the Indian Ocean Triple Junction, and other ridge/transform structures. This list and map show recent events in that wider region, not events under the islands themselves.

Event map

M4.3 — MADAGASCARM4.2 — SOUTH INDIAN OCEANM4.4 — MAURITIUS - REUNION REGIONM4.4 — Mauritius - Reunion regionM4.8 — MID-INDIAN RIDGEM4.8 — Mid-Indian RidgeM4.5 — MID-INDIAN RIDGEM4.5 — Mid-Indian RidgeM4.9 — RODRIGUES REGION, MAURITIUSM4.9 — 217 km NE of Port Mathurin, MauritiusM4.8 — RODRIGUES REGION, MAURITIUSM4.8 — 217 km NE of Port Mathurin, MauritiusM4.9 — 251 km NE of Port Mathurin, MauritiusM4.5 — 231 km NE of Port Mathurin, MauritiusM4.9 — RODRIGUES REGION, MAURITIUSM4.6 — Mid-Indian RidgeM4.6 — MID-INDIAN RIDGEM4.3 — Mauritius - Reunion regionM4.3 — MAURITIUS - REUNION REGIONM4.6 — Mid-Indian RidgeM4.9 — MID-INDIAN RIDGE

21 most recent event(s) plotted over the SW Indian Ocean region.

Event frequency over time

2026-05-112026-08-03max 7/bucket

21 most recent event(s), bucketed by day (or by week over a longer window).

Occurred (MUT)MagnitudeDepthRegionSource
2026-08-07 23:48 MUTM4.310 kmMADAGASCAREMSC
2026-08-05 12:52 MUTM4.2205 kmSOUTH INDIAN OCEANEMSC
2026-08-05 02:03 MUTM4.410 kmMAURITIUS - REUNION REGIONEMSC
2026-08-05 02:03 MUTM4.410 kmMauritius - Reunion regionUSGS
2026-07-14 10:15 MUTM4.810 kmMID-INDIAN RIDGEEMSC
2026-07-14 10:15 MUTM4.810 kmMid-Indian RidgeUSGS
2026-07-14 05:04 MUTM4.510 kmMID-INDIAN RIDGEEMSC
2026-07-14 05:04 MUTM4.510 kmMid-Indian RidgeUSGS
2026-07-07 00:25 MUTM4.910 kmRODRIGUES REGION, MAURITIUSEMSC
2026-07-07 00:25 MUTM4.910 km217 km NE of Port Mathurin, MauritiusUSGS
2026-07-06 21:51 MUTM4.810 kmRODRIGUES REGION, MAURITIUSEMSC
2026-07-06 21:51 MUTM4.810 km217 km NE of Port Mathurin, MauritiusUSGS
2026-07-06 20:53 MUTM4.910 km251 km NE of Port Mathurin, MauritiusUSGS
2026-07-06 20:52 MUTM4.510 km231 km NE of Port Mathurin, MauritiusUSGS
2026-07-06 20:52 MUTM4.910 kmRODRIGUES REGION, MAURITIUSEMSC
2026-06-11 23:56 MUTM4.610 kmMid-Indian RidgeUSGS
2026-06-11 23:56 MUTM4.610 kmMID-INDIAN RIDGEEMSC
2026-06-11 22:43 MUTM4.310 kmMauritius - Reunion regionUSGS
2026-06-11 22:43 MUTM4.310 kmMAURITIUS - REUNION REGIONEMSC
2026-05-13 05:31 MUTM4.610 kmMid-Indian RidgeUSGS
2026-05-13 05:31 MUTM4.91 kmMID-INDIAN RIDGEEMSC

Frequently asked questions

Why does this list only show magnitude ~4+ earthquakes?

The region's sparse seismic station network means only larger earthquakes are reliably located and published by USGS/EMSC — smaller events, common in well-instrumented regions, are essentially absent from this catalogue here.

Why is the depth almost always 10 km?

10 km is USGS's standard operator-assigned default depth for this region, not a measured value — nearby seismometer coverage is too sparse to solve depth independently for most events here, so this is expected, not a data error.

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