4.2

M4.2 Earthquake in the South Sandwich Islands regionJune 6, 2024

2024-06-06 23:47:48 UTC (2024-06-06) · approx. 9:47 PM UTC-2 local

MagnitudeM4.2(mb)
Time23:47 UTC9:47 PM UTC-2
Depth35.0 kmshallow crustal
Coordinates-54.731°, -28.502°
Felt byNo felt reports
Status✓ Reviewed by USGS

On June 6, 2024 at 23:47 UTC, a magnitude 4.2 shallow crustal earthquake struck in the South Sandwich Islands region, at a depth of 35.0 km and coordinates -54.7308°, -28.5016°.

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.

Map showing earthquake epicenter at -54.73°, -28.50°

Earthquake Details

Magnitude
4.2 mb
Depth
35.0 km
shallow crustal
Location
-54.7308°N
-28.5016°E

Technical Information

Event ID
us7000ms79
Event Type
earthquake
Status
✓ Reviewed
Significance
271
Stations Used
13
Azimuthal Gap
89.0°
Min Station Distance
4.676°
RMS Residual
0.77 sec
Last Updated
2024-08-16 21:59:24 UTC

Common Questions

How strong was the magnitude 4.2 earthquake in the South Sandwich Islands region?

The magnitude 4.2 earthquake that struck in the South Sandwich Islands region on June 6, 2024 at 23:47 UTC had a depth of 35.0 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.

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: us7000ms79). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, June 6, 2024). M4.2 Earthquake in the South Sandwich Islands regionJune 6, 2024. Retrieved August 16, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000ms79/