M4.4 Earthquake in the Macquarie Island region — July 30, 2025
2025-07-30 23:09:08 UTC (2025-07-30) · approx. 10:09 AM UTC+11 local
On July 30, 2025 at 23:09 UTC, a magnitude 4.4 shallow crustal earthquake struck in the Macquarie Island region, at a depth of 10.0 km and coordinates -57.7830°, 157.9936°.
Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
157.9936°E
Technical Information
Common Questions
How strong was the magnitude 4.4 earthquake in the Macquarie Island region?
The magnitude 4.4 earthquake that struck in the Macquarie Island region on July 30, 2025 at 23:09 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 4.4 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.4 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000r1ce). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, July 30, 2025). M4.4 Earthquake in the Macquarie Island region — July 30, 2025. Retrieved October 17, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000r1ce/