M3.7 earthquake Oaxaca, Mexico
A magnitude 3.7 earthquake struck in Oaxaca, Mexico on Sun, Apr 28, 1985, 6:29 AM CST (12:29 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.6 8 km NNE of Santa María Guenagati, Mexico. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.7 (mb, body-wave), minor
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1985-04-28 12:29:47 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 16.583° N, 95.797° 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
- 4.68 km NNE of Santa María Guenagati, Mexico · 15107 days ago · 152 km deep · 56 km away
- 3.94 km SSE of Santiago Ixtaltepec, Mexico · 15105 days ago · 157 km deep · 96 km away
- 4.31 km NW of Zarzal, Mexico · 15085 days ago · 157 km deep · 93 km away
Before
Earthquakes todayMexico earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002e8e. Read Sat, Oct 3, 2026, 1:07 AM UTC.