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Mexico · Oaxaca

M4.0 Earthquake near Santa María Chimalapa, Oaxaca (Mexico)

UTC time: 2026-10-02 02:20:33 UTC Local time: —
Earthquake newsQuakeMap24
Archive record · original publication time was not recorded

Automatically generated from measurement data by QuakeMap24. Values may change after further analysis.

Magnitude
M4.0
Depth
154.6 km
Source
EMSC

Oaxaca · Santa María Chimalapa

Country overview

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About this earthquake

On October 2, 2026 at 02:20 UTC, a magnitude M4.0 earthquake occurred near Santa María Chimalapa, Oaxaca (Mexico). At around 155 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.

Details

ID
abcd920234e09a007f98b4406e9d0c7597cfbb55
Magnitude
M4.0
Depth
154.6 km
UTC time
2026-10-02 02:20:33 UTC
Local time
—
Country
Mexico
State
Oaxaca
City
Santa María Chimalapa
County
Santa María Chimalapa
Source
emsc
Coordinates
17.02500, -94.03900
Temperature
19.8°C

Depth profile

Depth profile Depth: 154.6 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 154.6 km
Intermediate
154.6 km
154.6 km — deeper than the regional average (45.2 km)
Regional average: 45.2 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: 94 km ·Lava dome(s) ·Elevation: 1'150 m ·Last eruption: 1982 ·Mexico
  • San Martin
    Distance: 210 km ·Volcanic field ·Elevation: 1'660 m ·Last eruption: 1796 ·Mexico
  • Tacana
    Distance: 295 km ·Stratovolcano ·Elevation: 4'064 m ·Last eruption: 1986 ·Mexico-Guatemala
  • Tajumulco
    Distance: 317 km ·Stratovolcano ·Elevation: 4'203 m ·Guatemala
  • Almolonga
    Distance: 366 km ·Stratovolcano ·Elevation: 3'173 m ·Last eruption: 1818 ·Guatemala
  • Santa Maria Activity reported
    Distance: 367 km ·Stratovolcano ·Elevation: 3'745 m ·Last eruption: 2026 ·Guatemala

Oaxaca

Context for this earthquake

04 Oct 2025 – 04 Oct 2026 · M ≥ 3.0 · 215 Catalogue entries

Of 214 other entries for this area and period, 119 have a higher stored magnitude. Different magnitude types and reports not yet merged limit the comparison.

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