4.9

M4.9 Earthquake 251 km NE of Port Mathurin, MauritiusJuly 6, 2026

2026-07-06 16:53:10 UTC (2026-07-06) · approx. 8:53 PM UTC+4 local

MagnitudeM4.9(mb)
Time16:53 UTC8:53 PM UTC+4
Depth10.0 kmshallow crustal
Coordinates-18.066°, 65.088°
Felt byNo felt reports
Status✓ Reviewed by USGS

On July 6, 2026 at 16:53 UTC, a magnitude 4.9 shallow crustal earthquake struck 251 km NE of Port Mathurin, Mauritius, at a depth of 10.0 km and coordinates -18.0663°, 65.0884°. This earthquake was detected by 42 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 369, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.9 releases seismic energy equivalent to roughly 338 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.4 km — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -18.07°, 65.09°

Earthquake Details

Magnitude
4.9 mb
Depth
10.0 km
shallow crustal
Location
-18.0663°N
65.0884°E

Technical Information

Event ID
us7000t03c
Event Type
earthquake
Status
✓ Reviewed
Significance
369
Stations Used
42
Azimuthal Gap
66.0°
Min Station Distance
9.335°
RMS Residual
1.10 sec
Last Updated
2026-07-16 19:42:05 UTC

Nearby Earthquakes (Last 7 Days)

Common Questions

How strong was the magnitude 4.9 earthquake near Port Mathurin, Mauritius?

The magnitude 4.9 earthquake that struck 251 km NE of Port Mathurin, Mauritius on July 6, 2026 at 16:53 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at -18.0663°, 65.0884°, which is 251 km NE of Port Mathurin, Mauritius.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.9 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: us7000t03c). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, July 6, 2026). M4.9 Earthquake 251 km NE of Port Mathurin, MauritiusJuly 6, 2026. Retrieved July 16, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000t03c/