2.1

M2.1 Earthquake 26 km WSW of Westley, CA — September 30, 2026

2026-09-30 04:04:06 UTC (4 days ago) · approx. 8:04 PM UTC-8 local

MagnitudeM2.1(md)
Time04:04 UTC≈ 8:04 PM UTC-8
Depth3.7 kmshallow crustal
Coordinates37.426°, -121.455°
Felt byNo felt reports
StatusAutomatic (preliminary)
Map showing earthquake epicenter at 37.43°, -121.45°

Earthquake Details

Magnitude
2.1 md
Depth
3.7 km
shallow crustal
Location
37.4258°N
-121.4547°E

Technical Information

Event ID
nc75441791
Event Type
earthquake
Status
Automatic
Significance
66
Stations Used
15
Azimuthal Gap
80.0°
Min Station Distance
0.044°
RMS Residual
0.07 sec
Last Updated
2026-09-30 04:42:19 UTC

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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: nc75441791). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, September 30, 2026). M2.1 Earthquake 26 km WSW of Westley, CA — September 30, 2026. Retrieved September 30, 2026 from https://www.earthquaketracker.org/earthquakes/event/nc75441791/