M4.2 earthquake 2 km W of Niltepec, Mexico
A magnitude 4.2 earthquake struck 2 km W of Niltepec, Mexico on Sun, Mar 18, 2018, 1:47 AM CST (07:47 UTC), 97 km (60 mi) below the surface.
A larger quake followed: M4.7 18 km SSE of Constitución Mexicana, Mexico. This one was a foreshock.
Heroica Ciudad de Juchitán de Zaragoza forecastMore in Mexico
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
- 2018-03-18 07:47:23 UTC
- Depth
- 96.5 km (60.0 mi), intermediate-depth
- Epicenter
- 16.563° N, 94.637° W
- Region
- Mexico
- Felt reports
- 1
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
1 person reported to the USGS what they felt; the strongest reported shaking was IV, light shaking.

How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 3.8 km horizontally, 8.6 km in depth
- Magnitude uncertainty
- ±0.09
- Depth from
- From location
- Station coverage gap
- 101°
- Stations used
- 65
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 12 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.52 km SSW of Lázaro Cárdenas, Mexico · 3118 days ago · 39 km deep · 30 km away
- 4.127 km SE of El Carrizal, Mexico · 3115 days ago · 39 km deep · 97 km away
- 4.41 km SSE of La Noria, Mexico · 3100 days ago · 135 km deep · 71 km away
- 4.02 km NE of Santo Domingo Chihuitán, Mexico · 3098 days ago · 44 km deep · 54 km away
- 4.015 km SSW of Salina Cruz, Mexico · 3098 days ago · 35 km deep · 86 km away
- 4.547 km SSE of Salina Cruz, Mexico · 3090 days ago · 12 km deep · 98 km away · felt by 2
- 4.64 km S of Magdalena Tlacotepec, Mexico · 3087 days ago · 72 km deep · 61 km away · felt by 4
- 4.718 km SSE of Constitución Mexicana, Mexico · 3086 days ago · 110 km deep · 100 km away · felt by 2
- 4.240 km S of Colonia Juárez, Mexico · 3080 days ago · 10 km deep · 89 km away
- 4.513 km ESE of El Bajío, Mexico · 3069 days ago · 90 km deep · 43 km away · felt by 2
- 4.127 km SSE of San Francisco del Mar Viejo, Mexico · 3063 days ago · 38 km deep · 64 km away
- 4.53 km WNW of San Juan Guichicovi, Mexico · 3062 days ago · 107 km deep · 69 km away · felt by 2
Before
Earthquakes todayMexico earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000d612. Read Wed, Sep 30, 2026, 5:54 AM UTC.