2.1

M2.1 Earthquake 22 km NW of Parkfield, CA — August 21, 2026

2026-08-21 19:51:35 UTC (2026-08-21) · approx. 11:51 AM UTC-8 local

MagnitudeM2.1(md)
Time19:51 UTC≈ 11:51 AM UTC-8
Depth4.4 kmshallow crustal
Coordinates36.038°, -120.597°
Felt byNo felt reports
Status✓ Reviewed by USGS
Map showing earthquake epicenter at 36.04°, -120.60°

Earthquake Details

Magnitude
2.1 md
Depth
4.4 km
shallow crustal
Location
36.0380°N
-120.5975°E

Technical Information

Event ID
nc75422607
Event Type
earthquake
Status
✓ Reviewed
Significance
67
Stations Used
54
Azimuthal Gap
47.0°
Min Station Distance
0.031°
RMS Residual
0.09 sec
Last Updated
2026-09-01 23:12:24 UTC

Nearby Earthquakes (Last 7 Days)

2.7
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2.8
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2.9
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3.1
4 km SSE of Compton, CA
3 days ago · 15.8 km deep
3.3
3 km ESE of Larkfield-Wikiup, CA
5 days ago · 8.8 km deep
3.2
6 km SE of Ontario, CA
6 days ago · 6.1 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: nc75422607). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, August 21, 2026). M2.1 Earthquake 22 km NW of Parkfield, CA — August 21, 2026. Retrieved September 1, 2026 from https://www.earthquaketracker.org/earthquakes/event/nc75422607/