M4.0 earthquake 5 km WSW of Copala, Mexico
A magnitude 4.0 earthquake struck 5 km WSW of Copala, Mexico on Thu, May 29, 1986, 3:42 PM CST (21:42 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.5 3 km ESE of Cajelitos, Mexico. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.0 (mb), light
- Local time
- UTC
- 1986-05-29 21:42:44 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 16.597° N, 99.025° 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.
- Depth from
- OPERATOR_ASSIGNED
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 1 in the 30 days before it.
After
- 3.942 km SSW of Santiago Tepextla, Mexico · 14723 days ago · 33 km deep · 77 km away
- 4.53 km ESE of Cajelitos, Mexico · 14708 days ago · 63 km deep · 87 km away
- 3.71 km E of Ahuacachahue (Ndog'yo Itún Tichi), Mexico · 14697 days ago · 33 km deep · 27 km away
- 4.318 km WSW of San Nicolás, Mexico · 14677 days ago · 16 km deep · 48 km away
- 4.422 km SSW of Las Vigas, Mexico · 14667 days ago · 33 km deep · 34 km away
Before
Earthquakes todayMexico earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002ujx. Read Tue, Sep 22, 2026, 8:43 AM UTC.