4.2

M4.2 Earthquake 14 km ENE of Masumbwe, Tanzania — November 8, 2026

2026-11-08 22:07:19 UTC (17 hours ago) · approx. 12:07 AM UTC+2 local

MagnitudeM4.2(mb)
Time22:07 UTC≈ 12:07 AM UTC+2
Depth10.0 kmshallow crustal
Coordinates-3.606°, 32.311°
Felt by2DYFI responses
Status✓ Reviewed by USGS

On November 8, 2026 at 22:07 UTC, a magnitude 4.2 shallow crustal earthquake struck 14 km ENE of Masumbwe, Tanzania, at a depth of 10.0 km and coordinates -3.6060°, 32.3110°.

Physical scale: An earthquake of magnitude 4.2 releases seismic energy equivalent to roughly 30 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 476 m — a useful intuition for the size of the slip patch on the fault.

This earthquake is part of an ongoing aftershock sequence following the magnitude 5.1 mainshock that occurred 4 days ago 19 km NNW of Masumbwe, Tanzania. Since the mainshock, the USGS has recorded 0 aftershocks in this area. Aftershock activity is expected to continue for days to weeks as stresses on surrounding faults redistribute.

Map showing earthquake epicenter at -3.61°, 32.31°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 2 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.

USGS DYFI community-reported intensity map for the M4.2 earthquake near 14 km ENE of Masumbwe, Tanzania

Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report

Earthquake Details

Magnitude
4.2 mb
Depth
10.0 km
shallow crustal
Location
-3.6060°N
32.3110°E
Felt Reports
2
DYFI responses
Community Intensity
3.1
CDI from reports

Technical Information

Event ID
us7000tx42
Event Type
earthquake
Status
✓ Reviewed
Significance
272
Stations Used
16
Azimuthal Gap
123.0°
Min Station Distance
5.517°
RMS Residual
0.60 sec
Last Updated
2026-11-09 14:54:51 UTC

Common Questions

How strong was the magnitude 4.2 earthquake near Masumbwe, Tanzania?

The magnitude 4.2 earthquake that struck 14 km ENE of Masumbwe, Tanzania on November 8, 2026 at 22:07 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.2 earthquakes can continue for several days and gradually diminish over time.

Is this the same earthquake as the M5.1 one earlier?

No. This magnitude 4.2 earthquake is an aftershock of the larger magnitude 5.1 mainshock that occurred earlier 19 km NNW of Masumbwe, Tanzania. Aftershocks are smaller earthquakes triggered by stress changes from the mainshock.

Understanding This Data

Magnitude 4.2 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000tx42). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, November 8, 2026). M4.2 Earthquake 14 km ENE of Masumbwe, Tanzania — November 8, 2026. Retrieved November 9, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000tx42/