M3.9 Earthquake 83 km WSW of Coquimbo, Chile — June 27, 2020
2020-06-27 20:07:12 UTC (2020-06-27) · approx. 3:07 PM UTC-5 local
On June 27, 2020 at 20:07 UTC, a magnitude 3.9 shallow crustal earthquake struck 83 km WSW of Coquimbo, Chile, at a depth of 11.3 km and coordinates -30.1741°, -72.1707°.
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
-72.1707°E
Technical Information
Common Questions
How strong was the magnitude 3.9 earthquake near Coquimbo, Chile?
The magnitude 3.9 earthquake that struck 83 km WSW of Coquimbo, Chile on June 27, 2020 at 20:07 UTC had a depth of 11.3 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: us7000ad74). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, June 27, 2020). M3.9 Earthquake 83 km WSW of Coquimbo, Chile — June 27, 2020. Retrieved September 5, 2020 from https://www.earthquaketracker.org/earthquakes/event/us7000ad74/