Mexico earthquakes

M2.2 earthquake 5km ESE of Delta, B.C., MX

A magnitude 2.2 earthquake struck 5km ESE of Delta, B.C., MX on Sun, Jul 23, 1978, 12:40 PM PDT (19:40 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M4.1 74 km SW of Ejido Doctor Alberto Oviedo Mota (El Indiviso), Mexico. This one was a foreshock.

Ciudad Guadalupe Victoria forecast More in Mexico

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude: 2.2 (mc), micro
Local time: Sun, Jul 23, 1978, 12:40 PM PDT
UTC: 1978-07-23 19:40:10 UTC
Depth: 10.0 km (6.2 mi), shallow
Epicenter: 32.341° N, 115.146° W
Region: Mexico
Tsunami flag: No
Status: Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty: About 3.1 km horizontally, 31.6 km in depth
Depth from: Operator assigned
Station coverage gap: 226°, poorly surrounded by stations
Stations used: 10

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 134 in the 60 days after this one and 45 in the 30 days before it.

After

The first 60 of 134.

Before

Earthquakes today Mexico earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3340880. Read Wed, Sep 30, 2026, 7:01 AM UTC.