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M4.0 Depth: 116.3 km

M4.0 Earthquake near San Miguel Chimalapa, Oaxaca (Mexico)

UTC time: 2026-03-31 02:39:17 UTC Local time: —

About this earthquake

On March 31, 2026 at 02:39 UTC, a magnitude M4.0 earthquake occurred near San Miguel Chimalapa, Oaxaca (Mexico). At around 116 km, the focal depth places this among intermediate-depth events. Earthquakes of this magnitude are clearly felt; minor damage to vulnerable buildings is possible.

The event was recorded by EMSC. Mexico: over the past 24 hours, QuakeMap24 logged 2 earthquakes, the strongest at M2.1.

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Depth profile

Depth profile Depth: 116.3 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 116.3 km
Intermediate
116.3 km
116.3 km — deeper than the regional average (46 km)
Regional average: 46 km
Why depth matters

Intermediate-depth quakes are felt across a wider area but usually cause less surface damage.

Depth classes per USGS

Volcanoes nearby

  • Chichon, El
    Distance: 148 km ·Lava dome(s) ·Elevation: 1'150 m ·Last eruption: 1982 ·Mexico
  • San Martin
    Distance: 229 km ·Volcanic field ·Elevation: 1'660 m ·Last eruption: 1796 ·Mexico
  • Tacana
    Distance: 298 km ·Stratovolcano ·Elevation: 4'064 m ·Last eruption: 1986 ·Mexico-Guatemala
  • Tajumulco
    Distance: 322 km ·Stratovolcano ·Elevation: 4'203 m ·Guatemala
  • Santa Maria
    Distance: 371 km ·Stratovolcano ·Elevation: 3'745 m ·Last eruption: 2026 ·Guatemala
  • Almolonga
    Distance: 371 km ·Stratovolcano ·Elevation: 3'173 m ·Last eruption: 1818 ·Guatemala

Historic earthquake map · Mexico

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Country statistics · Mexico

Country overview
View earthquake KPIs, strongest and latest events, and averages for this country.

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