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M 3.2 earthquake – 23 km WSW of Gustine, CA

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Local time: Oct 21, 2026 · 21:18 (UTC-7)

MinorShallow · -0.7 km Automatic solution
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Magnitude
3.2local (Richter) magnitude (ml)
Depth
-0.7 kmShallow earthquake
Epicenter
37.170, -121.23035 km from Patterson
Energy released
1 tons of TNTless than one Hiroshima bomb
Felt reports
9"Did You Feel It?" responses
Shaking intensity
2.1max. reported (CDI)
Aftershocks
0M2.5+ within 30 km
Significance
155USGS score, 0–1,000+
Not rare around here

An earthquake at least as strong struck within 300 km on Oct 2, 2026.

How strong was it?

Minor earthquake. It released 1 tons of TNT, 501 times less than a magnitude 5.0. Bars use the magnitude scale: every step is about 32 times more energy.

Chile 1960 M 9.5
Japan 2011 M 9.1
San Francisco 1906 M 7.9
Turkey 2023 M 7.8
Haiti 2010 M 7.0
Northridge 1994 M 6.7
This earthquake M 3.2

In the week before

Earthquakes within 30 km in the 7 days before this one: possible foreshocks.