M4.1 Earthquake south of the Kermadec Islands — June 25, 2024
2024-06-25 21:08:20 UTC (2024-06-25) · approx. 9:08 AM UTC-12 local
On June 25, 2024 at 21:08 UTC, a magnitude 4.1 shallow crustal earthquake struck south of the Kermadec Islands, at a depth of 34.9 km and coordinates -32.7507°, -178.5969°.
Physical scale: An earthquake of magnitude 4.1 releases seismic energy equivalent to roughly 21 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 406 m — a useful intuition for the size of the slip patch on the fault.
This earthquake is part of an ongoing aftershock sequence following the magnitude 5.0 mainshock that occurred 22 days ago south of the Kermadec Islands. Since the mainshock, the USGS has recorded 3 aftershocks in this area. Aftershock activity is expected to continue for days to weeks as stresses on surrounding faults redistribute.
Earthquake Details
-178.5969°E
Technical Information
Common Questions
How strong was the magnitude 4.1 earthquake south of the Kermadec Islands?
The magnitude 4.1 earthquake that struck south of the Kermadec Islands on June 25, 2024 at 21:08 UTC had a depth of 34.9 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 4.1 earthquakes can continue for several days and gradually diminish over time.
Is this the same earthquake as the M5.0 one earlier?
No. This magnitude 4.1 earthquake is an aftershock of the larger magnitude 5.0 mainshock that occurred earlier south of the Kermadec Islands. Aftershocks are smaller earthquakes triggered by stress changes from the mainshock.
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Understanding This Data
Magnitude 4.1 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000n9wq). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, June 25, 2024). M4.1 Earthquake south of the Kermadec Islands — June 25, 2024. Retrieved September 4, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000n9wq/