3.6

M3.6 Earthquake near Near the coast of Tarapaca, Chile — February 15, 2021

2021-02-15 22:43:07 UTC (2021-02-15) · approx. 5:43 PM UTC-5 local

Felt by 11 people across nearby locations.

MagnitudeM3.6(ml)
Time22:43 UTC≈ 5:43 PM UTC-5
Depth39.7 kmshallow crustal
Coordinates-20.102°, -70.223°
Felt by11DYFI responses
Status✓ Reviewed by USGS

On February 15, 2021 at 22:43 UTC, a magnitude 3.6 shallow crustal earthquake struck near Near the coast of Tarapaca, Chile, at a depth of 39.7 km and coordinates -20.1017°, -70.2228°.

Physical scale: An earthquake of magnitude 3.6 releases seismic energy equivalent to roughly 3.8 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 184 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 -20.10°, -70.22°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 11 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.

USGS DYFI community-reported intensity map for the M3.6 earthquake near Near the coast of Tarapaca, Chile

Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report

Earthquake Details

Magnitude
3.6 ml
Depth
39.7 km
shallow crustal
Location
-20.1017°N
-70.2228°E
Felt Reports
11
DYFI responses
Community Intensity
2.5
CDI from reports

Technical Information

Event ID
us6000dhx8
Event Type
earthquake
Status
✓ Reviewed
Significance
202
Azimuthal Gap
171.0°
Min Station Distance
0.463°
RMS Residual
0.77 sec
Last Updated
2021-04-23 21:04:42 UTC

Common Questions

How strong was the magnitude 3.6 earthquake near Near the coast of Tarapaca, Chile?

The magnitude 3.6 earthquake that struck near Near the coast of Tarapaca, Chile on February 15, 2021 at 22:43 UTC had a depth of 39.7 km. For context, this was a minor earthquake typically detected only by instruments.

Where did the earthquake occur?

The earthquake epicenter was located at -20.1017°, -70.2228°, which is near Near the coast of Tarapaca, Chile. View all earthquakes in Chile.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 3.6 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 3.6 event is significantly smaller than that historical record.

Authoritative source: USGS event page (event ID: us6000dhx8). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2021, February 15, 2021). M3.6 Earthquake near Near the coast of Tarapaca, Chile — February 15, 2021. Retrieved April 23, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000dhx8/