2.1

M2.1 Earthquake 44km NE of Holtville, CA — August 23, 2021

2021-08-23 21:05:43 UTC (2021-08-23) · approx. 1:05 PM UTC-8 local

MagnitudeM2.1(ml)
Time21:05 UTC≈ 1:05 PM UTC-8
Depth-0.2 kmshallow crustal
Coordinates33.062°, -115.011°
Felt byNo felt reports
Status✓ Reviewed by USGS
Map showing earthquake epicenter at 33.06°, -115.01°

Earthquake Details

Magnitude
2.1 ml
Depth
-0.2 km
shallow crustal
Location
33.0622°N
-115.0110°E

Technical Information

Event ID
ci40019432
Event Type
quarry blast
Status
✓ Reviewed
Significance
68
Stations Used
13
Azimuthal Gap
66.0°
Min Station Distance
0.094°
RMS Residual
0.25 sec
Last Updated
2021-08-23 22:31:07 UTC

Nearby Earthquakes (Last 7 Days)

3.0
12 km SW of Estacion Coahuila, B.C., MX
2 days ago · 19.1 km deep
2.5
11 km N of Fillmore, CA
4 days ago · 26.6 km deep
2.9
4 km SSE of Compton, CA
5 days ago · 13.2 km deep

Actions

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Understanding This Data

Magnitude 2.1 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: ci40019432). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2021, August 23, 2021). M2.1 Earthquake 44km NE of Holtville, CA — August 23, 2021. Retrieved August 23, 2021 from https://www.earthquaketracker.org/earthquakes/event/ci40019432/