2.5

M2.5 Earthquake 4 km SE of Aromas, CA — October 26, 2026

2026-10-26 13:10:33 UTC (2 hours ago) · approx. 5:10 AM UTC-8 local

MagnitudeM2.5(md)
Time13:10 UTC≈ 5:10 AM UTC-8
Depth4.8 kmshallow crustal
Coordinates36.863°, -121.605°
Felt by4DYFI responses
StatusAutomatic (preliminary)

On October 26, 2026 at 13:10 UTC, a magnitude 2.5 shallow crustal earthquake struck 4 km SE of Aromas, CA, at a depth of 4.8 km and coordinates 36.8627°, -121.6050°.

Physical scale: An earthquake of magnitude 2.5 releases seismic energy equivalent to roughly 84.8 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 32 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 36.86°, -121.61°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 4 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.

USGS DYFI community-reported intensity map for the M2.5 earthquake near 4 km SE of Aromas, CA

Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report

Earthquake Details

Magnitude
2.5 md
Depth
4.8 km
shallow crustal
Location
36.8627°N
-121.6050°E
Felt Reports
4
DYFI responses
Community Intensity
3.4
CDI from reports

Technical Information

Event ID
nc75455061
Event Type
earthquake
Status
Automatic
Significance
98
Stations Used
64
Azimuthal Gap
49.0°
Min Station Distance
0.024°
RMS Residual
0.17 sec
Last Updated
2026-10-26 13:44:36 UTC

Common Questions

How strong was the magnitude 2.5 earthquake near Aromas, CA?

The magnitude 2.5 earthquake that struck 4 km SE of Aromas, CA on October 26, 2026 at 13:10 UTC had a depth of 4.8 km. For context, this was a minor earthquake typically detected only by instruments.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 2.5 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 2.5 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: nc75455061). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, October 26, 2026). M2.5 Earthquake 4 km SE of Aromas, CA — October 26, 2026. Retrieved October 26, 2026 from https://www.earthquaketracker.org/earthquakes/event/nc75455061/