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Mexico · Oaxaca

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

UTC time: 2026-09-23 22:33:54 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
123.2 km
Source
EMSC

Oaxaca · Santa María Chimalapa

Country overview

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About this earthquake

On September 23, 2026 at 22:33 UTC, a magnitude M4.0 earthquake occurred near Santa María Chimalapa, Oaxaca (Mexico). The earthquake originated at an intermediate depth of about 123 km. Tremors of this size are distinctly felt and can occasionally cause light damage.

The data is provided by EMSC and cross-checked across seismological networks.

Details

ID
5603ae18df73cefbf62f79f5a2e75ec48a149a18
Magnitude
M4.0
Depth
123.2 km
UTC time
2026-09-23 22:33:54 UTC
Local time
—
Country
Mexico
State
Oaxaca
City
Santa María Chimalapa
County
Santa María Chimalapa
Source
emsc
Coordinates
16.74600, -94.11400
Temperature
22.0°C

Depth profile

Depth profile Depth: 123.2 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 123.2 km
Intermediate
123.2 km
123.2 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: 116 km ·Lava dome(s) ·Elevation: 1'150 m ·Last eruption: 1982 ·Mexico
  • San Martin
    Distance: 232 km ·Volcanic field ·Elevation: 1'660 m ·Last eruption: 1796 ·Mexico
  • Tacana
    Distance: 280 km ·Stratovolcano ·Elevation: 4'064 m ·Last eruption: 1986 ·Mexico-Guatemala
  • Tajumulco
    Distance: 303 km ·Stratovolcano ·Elevation: 4'203 m ·Guatemala
  • Almolonga
    Distance: 352 km ·Stratovolcano ·Elevation: 3'173 m ·Last eruption: 1818 ·Guatemala
  • Santa Maria Activity reported
    Distance: 352 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.

Open seismic profile

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