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M4.0 Depth: 103.9 km

M4.0 Earthquake near San Juan Mazatlán, Oaxaca (Mexico)

UTC time: 2026-03-18 12:09:43 UTC Local time: —

About this earthquake

On March 18, 2026 at 12:09 UTC, a magnitude M4.0 earthquake occurred near San Juan Mazatlán, Oaxaca (Mexico). The earthquake originated at an intermediate depth of about 104 km. Tremors of this size are distinctly felt and can occasionally cause light damage.

The event was recorded by EMSC. Mexico: 2 earthquakes were recorded in the past 24 hours, the strongest reaching M2.1.

Map

Depth profile

Depth profile Depth: 103.9 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 103.9 km
Intermediate
103.9 km
103.9 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

  • San Martin
    Distance: 165 km ·Volcanic field ·Elevation: 1'660 m ·Last eruption: 1796 ·Mexico
  • Chichon, El
    Distance: 243 km ·Lava dome(s) ·Elevation: 1'150 m ·Last eruption: 1982 ·Mexico
  • Orizaba, Pico de
    Distance: 284 km ·Stratovolcano ·Elevation: 5'564 m ·Last eruption: 1846 ·Mexico
  • Naolinco Volcanic Field
    Distance: 318 km ·Volcanic field ·Elevation: 2'000 m ·Last eruption: 1145 ·Mexico
  • Serdan-Oriental Volcanic Field
    Distance: 318 km ·Volcanic field ·Elevation: 3'485 m ·Last eruption: -3920 ·Mexico
  • Humeros, Los
    Distance: 353 km ·Caldera(s) ·Elevation: 3'150 m ·Last eruption: -4470 ·Mexico

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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