M4.4 Earthquake in the Fiji region — April 16, 2021
2021-04-16 17:53:29 UTC (2021-04-16) · approx. 5:53 AM UTC-12 local
On April 16, 2021 at 17:53 UTC, a magnitude 4.4 deep-focus earthquake struck in the Fiji region, at a depth of 554.6 km and coordinates -20.0434°, -177.9781°.
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
-177.9781°E
Technical Information
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Common Questions
How strong was the magnitude 4.4 earthquake in the Fiji region?
The magnitude 4.4 earthquake that struck in the Fiji region on April 16, 2021 at 17:53 UTC had a depth of 554.6 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: us6000e3n7). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, April 16, 2021). M4.4 Earthquake in the Fiji region — April 16, 2021. Retrieved July 3, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000e3n7/