3.4

M3.4 Earthquake 57 km NNW of Iquique, Chile — June 27, 2021

2021-06-27 23:55:07 UTC (2021-06-27) · approx. 6:55 PM UTC-5 local

MagnitudeM3.4(ml)
Time23:55 UTC≈ 6:55 PM UTC-5
Depth24.2 kmshallow crustal
Coordinates-19.768°, -70.425°
Felt by1DYFI response
Status✓ Reviewed by USGS

On June 27, 2021 at 23:55 UTC, a magnitude 3.4 shallow crustal earthquake struck 57 km NNW of Iquique, Chile, at a depth of 24.2 km and coordinates -19.7679°, -70.4253°.

Physical scale: An earthquake of magnitude 3.4 releases seismic energy equivalent to roughly 1.9 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 134 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -19.77°, -70.43°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 1 citizen response 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 M3.4 earthquake near 57 km NNW of Iquique, Chile

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

Earthquake Details

Magnitude
3.4 ml
Depth
24.2 km
shallow crustal
Location
-19.7679°N
-70.4253°E
Felt Reports
1
DYFI responses
Community Intensity
2.0
CDI from reports

Technical Information

Event ID
us6000eqdd
Event Type
earthquake
Status
✓ Reviewed
Significance
178
Azimuthal Gap
182.0°
Min Station Distance
0.724°
RMS Residual
0.52 sec
Last Updated
2021-09-09 22:05:29 UTC

Common Questions

How strong was the magnitude 3.4 earthquake near Iquique, Chile?

The magnitude 3.4 earthquake that struck 57 km NNW of Iquique, Chile on June 27, 2021 at 23:55 UTC had a depth of 24.2 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 3.4 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 3.4 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us6000eqdd). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2021, June 27, 2021). M3.4 Earthquake 57 km NNW of Iquique, Chile — June 27, 2021. Retrieved September 9, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000eqdd/