M4.2 Earthquake in the Fiji region — July 21, 2024
2024-07-21 16:23:06 UTC (2024-07-21) · approx. 4:23 AM UTC-12 local
On July 21, 2024 at 16:23 UTC, a magnitude 4.2 deep-focus earthquake struck in the Fiji region, at a depth of 603.5 km and coordinates -19.3631°, -177.6680°.
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.
Earthquake Details
-177.6680°E
Technical Information
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Common Questions
How strong was the magnitude 4.2 earthquake in the Fiji region?
The magnitude 4.2 earthquake that struck in the Fiji region on July 21, 2024 at 16:23 UTC had a depth of 603.5 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.
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Understanding This Data
Magnitude 4.2 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000nhl8). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, July 21, 2024). M4.2 Earthquake in the Fiji region — July 21, 2024. Retrieved September 28, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000nhl8/