M4.3 Earthquake 62 km NW of Copiapó, Chile — May 20, 2022
2022-05-20 23:47:48 UTC (2022-05-20) · approx. 6:47 PM UTC-5 local
On May 20, 2022 at 23:47 UTC, a magnitude 4.3 shallow crustal earthquake struck 62 km NW of Copiapó, Chile, at a depth of 40.9 km and coordinates -27.0158°, -70.8260°.
Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 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
-70.8260°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.3 earthquake near Copiapó, Chile?
The magnitude 4.3 earthquake that struck 62 km NW of Copiapó, Chile on May 20, 2022 at 23:47 UTC had a depth of 40.9 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 4.3 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.3 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000hmtc). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, May 20, 2022). M4.3 Earthquake 62 km NW of Copiapó, Chile — May 20, 2022. Retrieved July 24, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000hmtc/