3.3

M3.3 Earthquake 22 km NW of Grapevine, CAApril 23, 2026

2026-04-23 12:21:46 UTC (2 hours ago)

On April 23, 2026 at 12:21 UTC, a magnitude 3.3 shallow crustal earthquake struck 22 km NW of Grapevine, CA, at a depth of 12.0 km and coordinates 35.0668°, -119.1152°.

Map showing earthquake epicenter at 35.07°, -119.12°

Earthquake Details

Magnitude
3.3 ml
Depth
12.0 km
shallow crustal
Location
35.0668°N
-119.1152°E
Felt Reports
3
DYFI responses
Community Intensity
2.0
CDI from reports

Technical Information

Event ID
ci41447104
Event Type
earthquake
Status
✓ Reviewed
Significance
170
Stations Used
91
Azimuthal Gap
41.0°
Min Station Distance
0.027°
RMS Residual
0.31 sec
Last Updated
2026-04-23 13:13:23 UTC

Common Questions

How strong was the magnitude 3.3 earthquake near Grapevine, CA?

The magnitude 3.3 earthquake that struck 22 km NW of Grapevine, CA on April 23, 2026 at 12:21 UTC had a depth of 12.0 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 3.3 earthquakes can continue for several days and gradually diminish over time.

What should I do after an earthquake?

If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.