3.6

M3.6 Earthquake 46km SW of Primo Tapia, B.C., MXAugust 10, 2022

2022-08-10 19:03:55 UTC (2022-08-10) · approx. 11:03 AM UTC-8 local

MagnitudeM3.6(ml)
Time19:03 UTC11:03 AM UTC-8
Depth19.1 kmshallow crustal
Coordinates31.922°, -117.257°
Felt by4DYFI responses· max MMI 2.3
Status✓ Reviewed by USGS

On August 10, 2022 at 19:03 UTC, a magnitude 3.6 shallow crustal earthquake struck 46km SW of Primo Tapia, B.C., MX, at a depth of 19.1 km and coordinates 31.9225°, -117.2573°. The earthquake was reported felt by 4 peopleacross nearby locations, with a maximum shaking intensity of Modified Mercalli Intensity (MMI) 2.3 (weak).

Physical scale: An earthquake of magnitude 3.6 releases seismic energy equivalent to roughly 3.4 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 175 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 31.92°, -117.26°

ShakeMap — predicted shaking intensity

Modeled ground-motion intensity contoured on the Modified Mercalli scale (MMI). Computed by the USGS from the moment-tensor solution and regional ground-motion prediction equations.

USGS ShakeMap intensity contours for the M3.6 earthquake near 46km SW of Primo Tapia, B.C., MX

Source: U.S. Geological Survey ShakeMap. View interactive ShakeMap on USGS

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 4 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 46km SW of Primo Tapia, B.C., MX

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

Earthquake Details

Magnitude
3.6 ml
Depth
19.1 km
shallow crustal
Location
31.9225°N
-117.2573°E
Felt Reports
4
DYFI responses
Intensity (MMI)
2.3
weak
Community Intensity
2.0
CDI from reports

Technical Information

Event ID
ci40079375
Event Type
earthquake
Status
✓ Reviewed
Significance
197
Stations Used
26
Azimuthal Gap
265.0°
Min Station Distance
0.507°
RMS Residual
0.20 sec
Last Updated
2022-10-21 23:20:16 UTC

Common Questions

How strong was the magnitude 3.6 earthquake near Primo Tapia, B.C., MX?

The magnitude 3.6 earthquake that struck 46km SW of Primo Tapia, B.C., MX on August 10, 2022 at 19:03 UTC had a depth of 19.1 km. It was felt by 4 people with maximum shaking intensity of MMI 2.3 (weak). 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 3.6 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 3.6 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: ci40079375). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, August 10, 2022). M3.6 Earthquake 46km SW of Primo Tapia, B.C., MXAugust 10, 2022. Retrieved October 21, 2022 from https://www.earthquaketracker.org/earthquakes/event/ci40079375/