3.3

M3.3 Earthquake 32 km ESE of Iquique, ChileNovember 7, 2022

2022-11-07 18:42:33 UTC (2022-11-07) · approx. 1:42 PM UTC-5 local

MagnitudeM3.3(ml)
Time18:42 UTC1:42 PM UTC-5
Depth67.3 kmshallow crustal
Coordinates-20.342°, -69.873°
Felt by1DYFI response
Status✓ Reviewed by USGS

On November 7, 2022 at 18:42 UTC, a magnitude 3.3 shallow crustal earthquake struck 32 km ESE of Iquique, Chile, at a depth of 67.3 km and coordinates -20.3422°, -69.8733°.

Physical scale: An earthquake of magnitude 3.3 releases seismic energy equivalent to roughly 1.3 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 114 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -20.34°, -69.87°

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 M3.3 earthquake near 32 km ESE of Iquique, Chile

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

Earthquake Details

Magnitude
3.3 ml
Depth
67.3 km
shallow crustal
Location
-20.3422°N
-69.8733°E
Felt Reports
1
DYFI responses
Community Intensity
2.5
CDI from reports

Technical Information

Event ID
us7000in4y
Event Type
earthquake
Status
✓ Reviewed
Significance
168
Stations Used
12
Azimuthal Gap
108.0°
Min Station Distance
0.252°
RMS Residual
0.59 sec
Last Updated
2023-01-21 19:27:13 UTC

Common Questions

How strong was the magnitude 3.3 earthquake near Iquique, Chile?

The magnitude 3.3 earthquake that struck 32 km ESE of Iquique, Chile on November 7, 2022 at 18:42 UTC had a depth of 67.3 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 3.3 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 3.3 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000in4y). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, November 7, 2022). M3.3 Earthquake 32 km ESE of Iquique, ChileNovember 7, 2022. Retrieved January 21, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000in4y/