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Mexico · Oaxaca

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

UTC time: 2026-09-23 15:17:17 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
184.1 km
Source
EMSC

Oaxaca · Santa María Chimalapa

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About this earthquake

On September 23, 2026 at 15:17 UTC, a magnitude M4.0 earthquake occurred near Santa María Chimalapa, Oaxaca (Mexico). At around 184 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 data is provided by EMSC and cross-checked across seismological networks.

Details

ID
f2c1caf8e5fa44f411c5b67e93abe5d89f2e55f6
Magnitude
M4.0
Depth
184.1 km
UTC time
2026-09-23 15:17:17 UTC
Local time
—
Country
Mexico
State
Oaxaca
City
Santa María Chimalapa
County
Santa María Chimalapa
Source
emsc
Coordinates
17.04200, -93.90900
Temperature
21.0°C

Depth profile

Depth profile Depth: 184.1 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 184.1 km
Intermediate
184.1 km
184.1 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: 80 km ·Lava dome(s) ·Elevation: 1'150 m ·Last eruption: 1982 ·Mexico
  • San Martin
    Distance: 217 km ·Volcanic field ·Elevation: 1'660 m ·Last eruption: 1796 ·Mexico
  • Tacana
    Distance: 287 km ·Stratovolcano ·Elevation: 4'064 m ·Last eruption: 1986 ·Mexico-Guatemala
  • Tajumulco
    Distance: 309 km ·Stratovolcano ·Elevation: 4'203 m ·Guatemala
  • Almolonga
    Distance: 357 km ·Stratovolcano ·Elevation: 3'173 m ·Last eruption: 1818 ·Guatemala
  • Santa Maria Activity reported
    Distance: 358 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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