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Mexico · Oaxaca

M4.1 Earthquake near Santo Tomás de Arriba, Oaxaca (Mexico)

UTC time: 2026-08-27 17:31:53 UTC Local time: —
Magnitude
M4.1
Depth
64.5 km
Source
EMSC

Oaxaca · Santo Tomás de Arriba

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About this earthquake

A magnitude M4.1 earthquake was recorded near Santo Tomás de Arriba, Oaxaca (Mexico) on August 27, 2026 at 17:31 UTC. With a focal depth of about 65 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. 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
9255863fd3f24f201684a818a4893538a5daaac9
Magnitude
M4.1
Depth
64.5 km
UTC time
2026-08-27 17:31:53 UTC
Local time
—
Country
Mexico
State
Oaxaca
City
Santo Tomás de Arriba
County
San Dionisio Ocotepec
Source
emsc
Coordinates
16.75000, -96.23300
Temperature
21.7°C

Depth profile

Depth profile Depth: 64.5 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 64.5 km
Shallow
64.5 km
64.5 km — deeper than the regional average (45.6 km)
Regional average: 45.6 km
Why depth matters

Shallow quakes release energy near the surface — shaking is felt more strongly and damage potential is higher.

Depth classes per USGS

Volcanoes nearby

  • San Martin
    Distance: 229 km ·Volcanic field ·Elevation: 1'660 m ·Last eruption: 1796 ·Mexico
  • Orizaba, Pico de
    Distance: 276 km ·Stratovolcano ·Elevation: 5'564 m ·Last eruption: 1846 ·Mexico
  • Serdan-Oriental Volcanic Field
    Distance: 309 km ·Volcanic field ·Elevation: 3'485 m ·Last eruption: -3920 ·Mexico
  • Chichon, El
    Distance: 326 km ·Lava dome(s) ·Elevation: 1'150 m ·Last eruption: 1982 ·Mexico
  • Naolinco Volcanic Field
    Distance: 329 km ·Volcanic field ·Elevation: 2'000 m ·Last eruption: 1145 ·Mexico
  • Malinche, La
    Distance: 335 km ·Stratovolcano ·Elevation: 4'461 m ·Last eruption: -1170 ·Mexico

Oaxaca

Context for this earthquake

05 Oct 2025 – 05 Oct 2026 · M ≥ 3.0 · 214 Catalogue entries

Sufficiently reliable matching data are not currently available for a direct comparison. The area profile shows the available records and their limitations.

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