27 km WSW of Westley, CaliforniaOct 31, 2026, 16:44
Nearby significant earthquake53 km from Union City2.42 km deep
Latest Earthquakes near Union City
Live map and archive of seismic activity in and around Union City, California.
Recent notable earthquakes in and around Union City
Most Recent
4 hours agoEarthquakes M1.5+ recorded today within 100 km, local time: 2 (Pacific Standard Time (PST))
Union City Activity Report
M1.5+Past 24 Hours5
Past 7 Days17
Past 30 Days55
Past 365 Days893
Filtered Statistics
Total earthquakes
23
3.2
Largest MagnitudeView
Gustine, CA · 23 km WSW
Significant
0
2.1
Most Recent4 hours ago
ViewConcord, CA · 3 km W
Depth distribution
Shallow-focus 23Intermediate-focus 0Deep-focus 0
Filtered Statistics
23 events
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Latest earthquakes in nearby cities
Live map and archive of seismic activity in and around Union City, California.
Common Questions about Earthquakes near Union City
How often are earthquakes recorded in the Union City area?
In the past 7 days, the number of earthquakes of magnitude 1.5 or above recorded in the area within 100 km of Union City was 17. These figures describe the available records, not a prediction of future earthquakes.
When was the last earthquake near Union City?
The most recent recorded earthquake in the area within 100 km of Union City had a magnitude of 2.1 and occurred on November 1, 2026 at 03:18 AM PST.
How strong was the largest recent earthquake in the Union City area?
Among the available records for the area within 100 km of Union City, the largest earthquake in the past 365 days had a magnitude of 4.6. These figures describe the available records, not a prediction of future earthquakes.
How far back does the earthquake data go?
The historical search starts in 1900, but available records vary by region and source. Older and smaller earthquakes may be missing. A long search can reach the list’s display limit, so narrow the date range to explore it in more detail.
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Earthquake information is automatically aggregated from the official seismic agencies listed below. Preliminary measurements can change as agencies review an event; use local emergency authorities for safety decisions. Latest successful data update: Nov 1, 2026, 15:42 UTC.
Data sources:
- USGS — Credit: U.S. Geological Survey.
- EMSC — Credit: EMSC/CSEM. Event catalogue data are provided under CC BY 4.0.
- JMA — Source: Japan Meteorological Agency (JMA).
- Geoscience Australia — Based on Australian Earthquakes data by Geoscience Australia. © Commonwealth of Australia. Licensed under CC BY 4.0; the section 5 disclaimer applies.
- GeoNet — We acknowledge the New Zealand GeoNet programme and its sponsors NHC, Earth Sciences NZ, LINZ, NEMA and MBIE for providing earthquake data.
- CENC / Wolfx — CENC earthquake parameters via Wolfx, an independent unofficial relay.
- GFZ / GEOFON — Locations, depths and magnitudes: GFZ/GEOFON using GEVN network data (CC BY 4.0).