M4.9 earthquake 10 km SW of Copala, Mexico
A magnitude 4.9 earthquake struck 10 km SW of Copala, Mexico on Tue, Nov 30, 1982, 6:42 PM CST (00:42 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M5.2 6 km ESE of Huehuetán, Mexico. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.9 (mb), light
- Local time
- UTC
- 1982-12-01 00:42:28 UTC
- Depth
- 33.1 km (20.6 mi), shallow
- Epicenter
- 16.530° N, 99.034° 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.
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.9 and up: 3 in the 60 days after this one and 1 in the 30 days before it.
After
- 5.26 km ESE of Huehuetán, Mexico · 15988 days ago · 34 km deep · 58 km away
- 4.136 km SW of Santiago Tepextla, Mexico · 15975 days ago · 33 km deep · 66 km away
- 4.26 km WSW of Montecillos, Mexico · 15957 days ago · 28 km deep · 55 km away
Before
Earthquakes todayMexico earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001r7c. Read Tue, Sep 22, 2026, 10:08 AM UTC.