2.6

M2.6 Earthquake 19 km ESE of Atlantis, South Africa — September 26, 2020

2020-09-26 18:41:40 UTC (2020-09-26) · approx. 7:41 PM UTC+1 local

Felt by 446 people across surrounding communities.

MagnitudeM2.6(mb_lg)
Time18:41 UTC≈ 7:41 PM UTC+1
Depth5.0 kmshallow crustal
Coordinates-33.647°, 18.669°
Felt by446DYFI responses
Status✓ Reviewed by USGS

On September 26, 2020 at 18:41 UTC, a magnitude 2.6 shallow crustal earthquake struck 19 km ESE of Atlantis, South Africa, at a depth of 5.0 km and coordinates -33.6470°, 18.6693°.

Physical scale: An earthquake of magnitude 2.6 releases seismic energy equivalent to roughly 120 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 37 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -33.65°, 18.67°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 446 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 M2.6 earthquake near 19 km ESE of Atlantis, South Africa

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

Earthquake Details

Magnitude
2.6 mb_lg
Depth
5.0 km
shallow crustal
Location
-33.6470°N
18.6693°E
Felt Reports
446
DYFI responses
Community Intensity
3.1
CDI from reports

Technical Information

Event ID
us6000c1tn
Event Type
earthquake
Status
✓ Reviewed
Significance
242
Azimuthal Gap
288.0°
Min Station Distance
2.199°
RMS Residual
0.41 sec
Last Updated
2020-12-05 21:03:01 UTC

Common Questions

How strong was the magnitude 2.6 earthquake near Atlantis, South Africa?

The magnitude 2.6 earthquake that struck 19 km ESE of Atlantis, South Africa on September 26, 2020 at 18:41 UTC had a depth of 5.0 km. For context, this was a minor earthquake typically detected only by instruments.

Where did the earthquake occur?

The earthquake epicenter was located at -33.6470°, 18.6693°, which is 19 km ESE of Atlantis, South Africa.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 2.6 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: us6000c1tn). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2020, September 26, 2020). M2.6 Earthquake 19 km ESE of Atlantis, South Africa — September 26, 2020. Retrieved December 5, 2020 from https://www.earthquaketracker.org/earthquakes/event/us6000c1tn/