EMSC · August 27, 2026
Magnitude 3.9 earthquake — 26 km NNW of Santiago Astata, Mexico
A magnitude 3.9 earthquake was recorded near 26 km NNW of Santiago Astata, Mexico on Aug 27, 2026, 02:13 AM (local time at the epicentre — CST, UTC-6), at a depth of about 49.6 km, according to EMSC.
EMSCShallow (0–70 km)Reviewed by a seismologist
Updated 2026-09-01 13:45 UTC
The full record
- Magnitude
- M 3.9 · m
- Location
- 26 km NNW of Santiago Astata, Mexico
- Local time at the epicentre
- Aug 27, 2026, 02:13 AM — CST, UTC-6
- Time (UTC)
- 2026-08-27 08:13 UTC
- Depth
- 49.6 km · Shallow (0–70 km)
- Coordinates
- 15.781, -95.563
- Felt reports
- No “Did You Feel It?” reports submitted
- Tsunami
- No tsunami evaluation was flagged for this earthquake.
- Review status
- Reviewed by a seismologist
- Catalog
- EMSC (Centro Sismológico Euromediterráneo)
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
Shallow earthquakes release their energy close to the surface, so they are felt more strongly nearby than a deeper earthquake of the same magnitude.
No intensity estimate was published for this event, which is usual for small earthquakes far from populated areas.
Who lives nearby
About 7,307 people live in towns within 30 km of the epicentre, and 434,760 within 100 km. Distances are from the epicentre to the town centre.
| Place | Distance | Population |
|---|---|---|
| Santiago Astata | 25.9 km NNW | 2,207 |
| Tapanalá | 26.9 km NW | 1,479 |
| Santa María | 27.9 km NNW | 1,374 |
| San Pedro Huamelula | 29.8 km NNW | 2,247 |
| El Coyul | 30.3 km WNW | 2,204 |
| Santa Gertrudis Miramar | 36.3 km NNE | 1,291 |
| Morro de Mazatán | 40.3 km NNE | 2,625 |
| Santa María Zapotitlán | 49.5 km NW | 1,104 |
| San Miguel Tenango | 54.1 km N | 640 |
| Rincón Moreno | 56.5 km NNE | 1,018 |
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
41 other events within 100 km in the last 30 days.
M 3.6 8 km ESE of Santa Gertrudis Miramar, Mexico
M 4.1 OFFSHORE OAXACA, MEXICO
M 3.8 1 km NNE of San Pedro Comitancillo, Mexico
M 3.7 OFFSHORE OAXACA, MEXICO
M 4.3 OFFSHORE OAXACA, MEXICO
M 3.9 OFFSHORE OAXACA, MEXICO
M 3.5 OFFSHORE OAXACA, MEXICO
M 4.1 14 km W of Crucecita, Mexico
M 3.5 1 km WNW of Santiago Laollaga, Mexico
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Frequently asked questions
How strong was the 26 km NNW of Santiago Astata, Mexico earthquake?
Magnitude 3.9 (m), at a depth of 49.6 km. Shallow earthquakes release their energy close to the surface, so they are felt more strongly nearby than a deeper earthquake of the same magnitude.
Exactly when did it happen?
Aug 27, 2026, 02:13 AM (local time at the epicentre — CST, UTC-6). In universal time: 2026-08-27 08:13 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 Santiago Astata, 25.9 km NNW (population 2,207).
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 41 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) and, in Venezuela, FUNVISIS. Populated places and time zones: GeoNames (CC BY 4.0). Preliminary solutions are revised as more observations arrive.