3.2

M3.2 Earthquake 6km ENE of Progreso, B.C., MXAugust 30, 2021

2021-08-30 23:11:42 UTC (2021-08-30) · approx. 3:11 PM UTC-8 local

Felt by 36 people across nearby locations.

MagnitudeM3.2(ml)
Time23:11 UTC3:11 PM UTC-8
Depth11.6 kmshallow crustal
Coordinates32.607°, -115.522°
Felt by36DYFI responses
Status✓ Reviewed by USGS

On August 30, 2021 at 23:11 UTC, a magnitude 3.2 shallow crustal earthquake struck 6km ENE of Progreso, B.C., MX, at a depth of 11.6 km and coordinates 32.6072°, -115.5223°. This earthquake was detected by 58 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 174, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 3.2 releases seismic energy equivalent to roughly 1.1 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 104 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 32.61°, -115.52°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 36 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 M3.2 earthquake near 6km ENE of Progreso, B.C., MX

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

Earthquake Details

Magnitude
3.2 ml
Depth
11.6 km
shallow crustal
Location
32.6072°N
-115.5223°E
Felt Reports
36
DYFI responses
Community Intensity
3.4
CDI from reports

Technical Information

Event ID
ci40027600
Event Type
earthquake
Status
✓ Reviewed
Significance
174
Stations Used
58
Azimuthal Gap
77.0°
Min Station Distance
0.070°
RMS Residual
0.31 sec
Last Updated
2021-11-06 20:28:44 UTC

Common Questions

How strong was the magnitude 3.2 earthquake near Progreso, B.C., MX?

The magnitude 3.2 earthquake that struck 6km ENE of Progreso, B.C., MX on August 30, 2021 at 23:11 UTC had a depth of 11.6 km. For context, this was a minor earthquake typically detected only by instruments.

Where did the earthquake occur?

The earthquake epicenter was located at 32.6072°, -115.5223°, which is 6km ENE of Progreso, B.C., MX.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 3.2 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: ci40027600). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2021, August 30, 2021). M3.2 Earthquake 6km ENE of Progreso, B.C., MXAugust 30, 2021. Retrieved November 6, 2021 from https://www.earthquaketracker.org/earthquakes/event/ci40027600/