Reviewed by USGSMexico1mo ago
M4.3 earthquake 78 km SSW of Manuel Ávila Camacho (Ponte Duro), Mexico
Saturday, August 15, 2026, 03:50:28 UTC · 15.154°N, 93.880°W
A magnitude 4.3 earthquake struck 78 km SSW of Manuel Ávila Camacho (Ponte Duro), Mexico on Saturday, August 15, 2026, 03:50:28 UTC, at a depth of 35.0 km (shallow).
- Magnitude
- 4.3
- Light · mb
- Depth
- 35 km
- Shallow
- Felt reports
- 0
- Did You Feel It?
- Est. shaking
- —
- No ShakeMap
- PAGER alert
- None
- Not issued
- Tsunami
- No flag
- USGS feed
Outlined circle: this earthquake
In context
How big was it, and why here?
Energy released
43 tons of TNT
That is about 1/354 of the Hiroshima bomb. A magnitude 5.0 releases about 11 times more energy.
Tectonic setting
100 km
from the nearest mapped plate boundary, between the Cocos and North American plates. Earthquakes this far from a boundary happen on faults inside a plate, often less frequently but sometimes strongly.
Depth: shallow
35 km
Shallow earthquakes (under 70 km) produce the strongest surface shaking for their size, so they are the ones most likely to cause damage near the epicenter.
Did You Feel It?
Where it was felt
No “Did You Feel It?” reports have been published for this event yet. If you felt it, you can add your report on the USGS website.
I felt it — report to USGS ↗USGS PAGER estimate
Who was exposed to shaking
USGS publishes PAGER impact estimates for significant earthquakes, usually within an hour. No PAGER estimate is available for this event.
After the main event
Aftershocks within 50 km
USGS has not published any M2.5+ earthquake within 50 km in the 30 days after this event.
Regional history
Past M5+ earthquakes within 300 km
USGS lists 802 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 8.22017 Tehuantepec, Mexico EarthquakeSeptember 8, 2017 · 15 km S of this epicenter
- 7.65 km SSW of San Miguel Suchixtepec, MexicoJanuary 15, 1931 · 296 km W of this epicenter
- 7.48 km ENE of Santiago Xanica, MexicoMarch 22, 1928 · 263 km W of this epicenter
- 7.44 km NW of Santa María Zapotitlán, MexicoAugust 23, 1965 · 241 km NW of this epicenter
- 7.49 km SE of Santa María Xadani, MexicoJune 23, 2020 · 242 km W of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 37 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 2,142 recorded deaths. The most severe:
- 1982M3.5
Chiapas
28 Mar 1982 · 244 km away
1,879 deaths$3 million damage
- 2017M8.2
Oaxaca, Chiapas, Tabasco; Guatemala
8 Sep 2017 · 15 km away · intensity IX
98 deaths$4.0 billion damagetsunami
- 2012M7.3
San Marcos, San Cristobal Cochu
7 Nov 2012 · 250 km away
48 deaths$210 million damagetsunami
- 1870M7.9
Oaxaca,Zanaguia,San Francisco Ozolotepec
11 May 1870 · 261 km away
24 deathsSevere damage ($5–24M)tsunami
- 1816M7.5
Soloma
22 Jul 1816 · 258 km away · intensity IX
23 deathsSevere damage ($5–24M)
- 1968M6.1
S Chiapas
25 Sep 1968 · 151 km away
20 deathsModerate damage ($1–5M)tsunami
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.