USGS · October 1, 2026
Magnitude 4.1 earthquake near Puerto Madero, Mexico
A magnitude 4.1 earthquake was recorded near 28 km SW of Buenos Aires, Mexico on Oct 1, 2026, 02:14 AM (local time at the epicentre — CST, UTC-6), at a depth of about 71.3 km, according to USGS.
USGSIntermediate (70–300 km)Reviewed by a seismologist
Updated 2026-10-01 10:36 UTC
The full record
- Magnitude
- M 4.1 · body-wave magnitude
- Location
- 28 km SW of Buenos Aires, Mexico
- Local time at the epicentre
- Oct 1, 2026, 02:14 AM — CST, UTC-6
- Time (UTC)
- 2026-10-01 08:14 UTC
- Depth
- 71.3 km · Intermediate (70–300 km)
- Coordinates
- 14.736, -92.696
- Felt reports
- No “Did You Feel It?” reports submitted
- Tsunami
- No tsunami evaluation was flagged for this earthquake.
- Significance
- 259 / 1000 · routine event
- Solution quality
- 26 seismic stations used · 180° azimuthal gap (well-constrained epicentre)
- Review status
- Reviewed by a seismologist
- Catalog
- USGS
Epicentre and nearby recent earthquakes
The highlighted circle is this earthquake. Smaller circles are other events recorded nearby in the last 30 days.
What the shaking was like
At this depth the energy spreads out before it reaches the surface, so shaking is usually weaker but felt over a wider area.
No intensity estimate was published for this event, which is usual for small earthquakes far from populated areas.
Felt it yourself? USGS collects first-hand reports through “Did You Feel It?”, and those reports are what produce the community intensity above.
Who lives nearby
About 14,952 people live in towns within 30 km of the epicentre, and 1,019,844 within 100 km. Distances are from the epicentre to the town centre.
| Place | Distance | Population |
|---|---|---|
| Buenos Aires | 28.8 km NE | 4,260 |
| Puerto Madero | 29.6 km E | 9,557 |
| Aquiles Serdán | 29.9 km NE | 1,135 |
| Mazatán | 30.1 km ENE | 6,838 |
| El Encanto | 30.7 km E | 1,726 |
| Marte R. Gómez | 34.4 km NE | 1,263 |
| Plan de Ayala | 36.3 km NE | 1,443 |
| Tinajas 1ra. Sección | 39.6 km E | 1,055 |
| Álvaro Obregón | 40.0 km ENE | 5,717 |
| Francisco I. Madero | 40.6 km NNE | 1,804 |
Earthquake history in this area
12 earthquakes of magnitude 4.5+ have been recorded within 200 km of this epicentre since 1960, in Mexico.
Other earthquakes near this epicentre
122 other events within 100 km in the last 30 days.
M 4.1 OFFSHORE CHIAPAS, MEXICO
M 3.9 OFFSHORE CHIAPAS, MEXICO
M 3.8 28 km NE of Puerto Madero, Mexico
M 3.5 16 km NNE of Ocós, Guatemala
M 3.5 45 km NE of Brisas Barra de Suchiate, Mexico
M 4.0 4 km NNW of San Felipe Tizapa, Mexico
M 3.6 11 km NNW of La Esperanza (El Zapotal), Mexico
M 3.7 OFFSHORE CHIAPAS, MEXICO
M 3.9 OFFSHORE CHIAPAS, MEXICO
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Frequently asked questions
How strong was the 28 km SW of Buenos Aires, Mexico earthquake?
Magnitude 4.1 (body-wave magnitude), at a depth of 71.3 km. At this depth the energy spreads out before it reaches the surface, so shaking is usually weaker but felt over a wider area.
Exactly when did it happen?
Oct 1, 2026, 02:14 AM (local time at the epicentre — CST, UTC-6). In universal time: 2026-10-01 08:14 UTC.
Was it felt?
No “Did You Feel It?” reports were submitted for this event. Small earthquakes usually pass unnoticed except very close to the epicentre.
Was there a tsunami warning?
No tsunami evaluation was flagged for this earthquake.
Which towns are closest to the epicentre?
The closest is Buenos Aires, 28.8 km NE (population 4,260).
Are earthquakes normal in this area?
Yes. The largest earthquake recorded within 200 km since 1960 was magnitude 8.2 (2017 Tehuantepec, Mexico Earthquake, 2017), and 122 further events were recorded within 100 km in the last 30 days.
How do I get alerts for the next earthquake here?
Install the free SeismoWatch Android app, draw a box over this area, set a minimum magnitude, and turn alerts on.
About this page
Event data: U.S. Geological Survey (USGS), the European-Mediterranean Seismological Centre (EMSC), in Venezuela FUNVISIS and in Brazil the RSBR through the Centro de Sismologia da USP. Populated places and time zones: GeoNames (CC BY 4.0). Preliminary solutions are revised as more observations arrive.