4.6

M4.6 Earthquake in the Bouvet Island regionSeptember 30, 2024

2024-09-30 21:14:17 UTC (2024-09-30) · approx. 9:14 PM UTC+0 local

MagnitudeM4.6(mb)
Time21:14 UTC9:14 PM UTC+0
Depth10.0 kmshallow crustal
Coordinates-54.533°, 5.226°
Felt byNo felt reports
Status✓ Reviewed by USGS

On September 30, 2024 at 21:14 UTC, a magnitude 4.6 shallow crustal earthquake struck in the Bouvet Island region, at a depth of 10.0 km and coordinates -54.5329°, 5.2260°. This earthquake was detected by 20 seismic stations with good location accuracy and was assigned a USGS significance rating of 326, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.6 releases seismic energy equivalent to roughly 120 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 899 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -54.53°, 5.23°

Earthquake Details

Magnitude
4.6 mb
Depth
10.0 km
shallow crustal
Location
-54.5329°N
5.2260°E

Technical Information

Event ID
us7000nmey
Event Type
earthquake
Status
✓ Reviewed
Significance
326
Stations Used
20
Azimuthal Gap
98.0°
Min Station Distance
17.554°
RMS Residual
1.13 sec
Last Updated
2024-12-14 14:51:05 UTC

Common Questions

How strong was the magnitude 4.6 earthquake in the Bouvet Island region?

The magnitude 4.6 earthquake that struck in the Bouvet Island region on September 30, 2024 at 21:14 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 -54.5329°, 5.2260°, which is in the Bouvet Island region.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.6 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: us7000nmey). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, September 30, 2024). M4.6 Earthquake in the Bouvet Island regionSeptember 30, 2024. Retrieved December 14, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000nmey/