4.5

M4.5 Earthquake 25 km SSE of Coquimbo, ChileApril 4, 2022

2022-04-04 23:12:11 UTC (2022-04-04) · approx. 6:12 PM UTC-5 local

MagnitudeM4.5(mb)
Time23:12 UTC6:12 PM UTC-5
Depth59.5 kmshallow crustal
Coordinates-30.178°, -71.282°
Felt byNo felt reports
Status✓ Reviewed by USGS

On April 4, 2022 at 23:12 UTC, a magnitude 4.5 shallow crustal earthquake struck 25 km SSE of Coquimbo, Chile, at a depth of 59.5 km and coordinates -30.1777°, -71.2821°.

Physical scale: An earthquake of magnitude 4.5 releases seismic energy equivalent to roughly 85 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 767 m — a useful intuition for the size of the slip patch on the fault.

The epicenter is located in Chile, a region characterized by the Peru-Chile Trench, where the Nazca Plate subducts beneath South America at 65-80 mm per year. The nearest mapped fault system is the Peru-Chile Trench. View all earthquakes in Chile.

Learn more: Magnitude scale · Aftershock sequences

Map showing earthquake epicenter at -30.18°, -71.28°

Earthquake Details

Magnitude
4.5 mb
Depth
59.5 km
shallow crustal
Location
-30.1777°N
-71.2821°E

Technical Information

Event ID
us7000gzpr
Event Type
earthquake
Status
✓ Reviewed
Significance
312
Azimuthal Gap
118.0°
Min Station Distance
0.261°
RMS Residual
0.65 sec
Last Updated
2022-06-11 20:21:04 UTC

Common Questions

How strong was the magnitude 4.5 earthquake near Coquimbo, Chile?

The magnitude 4.5 earthquake that struck 25 km SSE of Coquimbo, Chile on April 4, 2022 at 23:12 UTC had a depth of 59.5 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at -30.1777°, -71.2821°, which is 25 km SSE of Coquimbo, Chile. View all earthquakes in Chile.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.5 earthquakes can continue for several days and gradually diminish over time.

Has Chile had earthquakes this big before?

The largest recorded earthquake in Chile was the M9.5 Great Chilean earthquake of May 22, 1960. Today's magnitude 4.5 event is significantly smaller than that historical record.

Authoritative source: USGS event page (event ID: us7000gzpr). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, April 4, 2022). M4.5 Earthquake 25 km SSE of Coquimbo, ChileApril 4, 2022. Retrieved June 11, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000gzpr/