M2.3 Earthquake 19 km SE of Waimea, Hawaii — March 20, 2022
2022-03-20 21:46:29 UTC (2022-03-20) · approx. 11:46 AM UTC-10 local
On March 20, 2022 at 21:46 UTC, a magnitude 2.3 shallow crustal earthquake struck 19 km SE of Waimea, Hawaii, at a depth of 24.9 km and coordinates 19.8790°, -155.5672°.
Physical scale: An earthquake of magnitude 2.3 releases seismic energy equivalent to roughly 39.7 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 23 m — a useful intuition for the size of the slip patch on the fault.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 3 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
-155.5672°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 2.3 earthquake near Waimea, Hawaii?
The magnitude 2.3 earthquake that struck 19 km SE of Waimea, Hawaii on March 20, 2022 at 21:46 UTC had a depth of 24.9 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 2.3 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 2.3 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: hv72957117). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, March 20, 2022). M2.3 Earthquake 19 km SE of Waimea, Hawaii — March 20, 2022. Retrieved May 28, 2022 from https://www.earthquaketracker.org/earthquakes/event/hv72957117/