4.9

M4.9 Earthquake near southern Mid-Atlantic Ridge — November 7, 2026

2026-11-07 11:35:38 UTC (6 hours ago) · approx. 10:35 AM UTC-1 local

MagnitudeM4.9(mb)
Time11:35 UTC≈ 10:35 AM UTC-1
Depth10.0 kmshallow crustal
Coordinates-18.248°, -12.944°
Felt byNo felt reports
Status✓ Reviewed by USGS

On November 7, 2026 at 11:35 UTC, a magnitude 4.9 shallow crustal earthquake struck near southern Mid-Atlantic Ridge, at a depth of 10.0 km and coordinates -18.2483°, -12.9445°. This earthquake was detected by 29 seismic stations with good 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 -18.25°, -12.94°

Earthquake Details

Magnitude
4.9 mb
Depth
10.0 km
shallow crustal
Location
-18.2483°N
-12.9445°E

Technical Information

Event ID
us7000twrt
Event Type
earthquake
Status
✓ Reviewed
Significance
369
Stations Used
29
Azimuthal Gap
118.0°
Min Station Distance
7.250°
RMS Residual
1.12 sec
Last Updated
2026-11-07 11:55:28 UTC

Common Questions

How strong was the magnitude 4.9 earthquake near southern Mid-Atlantic Ridge?

The magnitude 4.9 earthquake that struck near southern Mid-Atlantic Ridge on November 7, 2026 at 11:35 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 -18.2483°, -12.9445°, which is near southern Mid-Atlantic Ridge.

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: us7000twrt). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, November 7, 2026). M4.9 Earthquake near southern Mid-Atlantic Ridge — November 7, 2026. Retrieved November 7, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000twrt/