M3.9 Earthquake in the Kermadec Islands region — April 19, 2022
2022-04-19 21:51:24 UTC (2022-04-19) · approx. 9:51 AM UTC-12 local
On April 19, 2022 at 21:51 UTC, a magnitude 3.9 intermediate depth earthquake struck in the Kermadec Islands region, at a depth of 171.1 km and coordinates -31.2701°, -179.0527°.
Physical scale: An earthquake of magnitude 3.9 releases seismic energy equivalent to roughly 11 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 296 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-179.0527°E
Technical Information
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Common Questions
How strong was the magnitude 3.9 earthquake in the Kermadec Islands region?
The magnitude 3.9 earthquake that struck in the Kermadec Islands region on April 19, 2022 at 21:51 UTC had a depth of 171.1 km. For context, this was a minor earthquake typically detected only by instruments.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 3.9 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.9 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: us6000hfmk). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, April 19, 2022). M3.9 Earthquake in the Kermadec Islands region — April 19, 2022. Retrieved June 26, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000hfmk/