4.7

M4.7 Earthquake west of Macquarie Island — December 24, 2025

2025-12-24 21:03:14 UTC (2025-12-24) · approx. 7:03 AM UTC+10 local

MagnitudeM4.7(mb)
Time21:03 UTC≈ 7:03 AM UTC+10
Depth10.0 kmshallow crustal
Coordinates-57.362°, 148.699°
Felt byNo felt reports
Status✓ Reviewed by USGS

On December 24, 2025 at 21:03 UTC, a magnitude 4.7 shallow crustal earthquake struck west of Macquarie Island, at a depth of 10.0 km and coordinates -57.3621°, 148.6989°. This earthquake was detected by 21 seismic stations with good location accuracy and was assigned a USGS significance rating of 340, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.7 releases seismic energy equivalent to roughly 169 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.1 km — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -57.36°, 148.70°

Earthquake Details

Magnitude
4.7 mb
Depth
10.0 km
shallow crustal
Location
-57.3621°N
148.6989°E

Technical Information

Event ID
us7000rq4k
Event Type
earthquake
Status
✓ Reviewed
Significance
340
Stations Used
21
Azimuthal Gap
113.0°
Min Station Distance
19.915°
RMS Residual
0.61 sec
Last Updated
2026-04-01 22:48:53 UTC

Common Questions

How strong was the magnitude 4.7 earthquake west of Macquarie Island?

The magnitude 4.7 earthquake that struck west of Macquarie Island on December 24, 2025 at 21:03 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 -57.3621°, 148.6989°, which is west of Macquarie Island.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.7 earthquakes can continue for several days and gradually diminish over time.

What should I do after an earthquake?

If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.

Actions

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Authoritative source: USGS event page (event ID: us7000rq4k). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, December 24, 2025). M4.7 Earthquake west of Macquarie Island — December 24, 2025. Retrieved May 23, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000rq4k/