2021Alameda County

Fremont Earthquakes 2021

1,005 earthquakes were recorded within 30 miles of Fremont in 2021, including M3.9 as the largest.

2020 2021 2022 2023 2024 2025 2026

Total

1,005

earthquakes

Largest

M3.9

magnitude

Average

M1.3

magnitude

Monthly Avg

per month

Magnitude Distribution

899

M0-2

M2-3

M3-4

M4+

Notable Earthquakes (M3.0+)

Monthly Breakdown

January

Max: M3.0

February

Max: M2.6

March

Max: M2.6

April

Max: M3.6

May

Max: M2.5

June

119

Max: M3.9

July

Max: M2.1

August

105

Max: M2.9

September

Max: M3.1

October

Max: M3.4

November

Max: M3.9

December

Max: M2.5

All Earthquakes (100 shown)

Fremont TodayLive earthquake activity Fremont OverviewAll-time data & analysis Fremont RegionRegional seismic data

About Fremont Earthquake History

Fremont is located in Alameda County, California, within the seismically active San Francisco Bay Area. The region experiences regular seismic activity due to its proximity to major fault lines, including the Hayward Fault.

This page provides a complete record of all earthquakes detected within 30 miles ofFremont during 2021. The data is sourced from the USGS earthquake monitoring network, which operates a comprehensive array of seismometers throughout California.

For real-time earthquake information, visit the Fremont Earthquake Today page, or explore our earthquake preparedness guide to learn how to stay safe.

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