M5.1 earthquake 5 km SE of Unión Juárez, Mexico
A magnitude 5.1 earthquake struck 5 km SE of Unión Juárez, Mexico on Sun, Dec 30, 2012, 7:15 PM CST (01:15 UTC), 123 km (76 mi) below the surface.
A larger quake followed: M5.3 16 km SW of Buenos Aires, Mexico. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.1 (mb, body-wave), moderate
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2012-12-31 01:15:18 UTC
- Depth
- 122.6 km (76.2 mi), intermediate-depth
- Epicenter
- 15.031° N, 92.037° W
- Region
- Mexico
- Felt reports
- 10
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Magnitude estimates
Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.
| Mag. | Scale | Computed by | Notes |
|---|---|---|---|
| 5.1 | mb, body-wave | USGS National Earthquake Information Center | Preferred · Reviewed · 166 stations |
| 5.2 | Mw, moment | ISC-GEM global catalog | Final · ±0.1 |
What happened
The USGS’s account of the effects of this earthquake.
Felt at San Gabriel. Also felt at Tapachula, Tonala, Tuxtla and Union Juarez, Mexico.
From the USGS event page for usp000jxn3. U.S. Geological Survey text and figures are in the public domain.
Did you feel it?
10 people reported to the USGS what they felt; the strongest reported shaking was III, weak shaking.
How well it is located
Reviewed by a seismologist.
- Station coverage gap
- 68°
- Stations used
- 281
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.1 and up: 6 in the 60 days after this one and 4 in the 30 days before it.
After
- 5.316 km SW of Buenos Aires, Mexico · 5011 days ago · 79 km deep · 67 km away · felt by 14
- 4.94 km NW of San Juan Atitán, Guatemala · 5011 days ago · 228 km deep · 63 km away
- 4.633 km SSW of Ocós, Guatemala · 5002 days ago · 59 km deep · 94 km away
- 4.44 km WSW of Champerico, Guatemala · 4995 days ago · 77 km deep · 85 km away
- 4.710 km SW of Francisco I. Madero, Mexico · 4983 days ago · 98 km deep · 63 km away · felt by 4
- 4.115 km SSW of Ocós, Guatemala · 4969 days ago · 107 km deep · 76 km away
Before
- 4.339 km SSW of Ocós, Guatemala · 5031 days ago · 35 km deep · 100 km away
- 4.13 km NE of Tectitán, Guatemala · 5031 days ago · 196 km deep · 33 km away
- 5.26 km NW of Santo Tomás La Unión, Guatemala · 5038 days ago · 115 km deep · 74 km away · felt by 10
- 4.337 km WSW of Puerto Madero, Mexico · 5043 days ago · 6 km deep · 90 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp000jxn3 (also filed as usc000ehsy, iscgem602065123). Read Thu, Oct 1, 2026, 11:37 PM UTC.