M4.3 Earthquake 88 km SSW of Iquique, Chile — December 25, 2020
2020-12-25 21:39:24 UTC (2020-12-25) · approx. 4:39 PM UTC-5 local
On December 25, 2020 at 21:39 UTC, a magnitude 4.3 shallow crustal earthquake struck 88 km SSW of Iquique, Chile, at a depth of 25.4 km and coordinates -20.9237°, -70.5322°.
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
-70.5322°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.3 earthquake near Iquique, Chile?
The magnitude 4.3 earthquake that struck 88 km SSW of Iquique, Chile on December 25, 2020 at 21:39 UTC had a depth of 25.4 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: us6000d31b). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, December 25, 2020). M4.3 Earthquake 88 km SSW of Iquique, Chile — December 25, 2020. Retrieved March 6, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000d31b/