M4.2 earthquake 78 km WSW of Altata, Mexico
A magnitude 4.2 earthquake struck 78 km WSW of Altata, Mexico on Mon, May 23, 1983, 3:09 AM GMT-7 (10:09 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M4.7 92 km SW of Las Arenitas, Mexico. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.2 (mb), light
- Local time
- UTC
- 1983-05-23 10:09:58 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 24.299° N, 108.609° 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: 3 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.792 km SW of Las Arenitas, Mexico · 15829 days ago · 10 km deep · 67 km away
- 4.799 km WSW of Altata, Mexico · 15781 days ago · 10 km deep · 23 km away
- 5.584 km SSW of Altata, Mexico · 15779 days ago · 10 km deep · 50 km away
Before
Earthquakes todayMexico earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001vk6. Read Tue, Sep 22, 2026, 10:25 PM UTC.