Reviewed by USGSChile1d ago
M5.2 earthquake 62 km SW of San Antonio, Chile
Friday, September 25, 2026, 15:29:09 UTC · 33.966°S, 72.108°W
A magnitude 5.2 earthquake struck 62 km SW of San Antonio, Chile on Friday, September 25, 2026, 15:29:09 UTC, at a depth of 29.1 km (shallow). USGS received 8 “Did You Feel It?” reports, with a maximum reported intensity of IV (light). It is the strongest earthquake within 300 km since an M6.0 on May 31, 2026.
- Magnitude
- 5.2
- Moderate · mww
- Depth
- 29 km
- Shallow
- Felt reports
- 8
- Max intensity IV
- 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
951 tons of TNT
That is about 1/16 of the Hiroshima bomb. It released about 2 times the energy of a magnitude 5.0.
Tectonic setting
78 km
from the nearest mapped plate boundary, between the Nazca and South American plates. Earthquakes cluster along boundaries like this one, where plates collide, pull apart or slide past each other.
Depth: shallow
29 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
Reports sent by people to USGS, grouped by place (most reports first). Intensity uses the Modified Mercalli scale (I–X): what people felt, not the magnitude.
| Place | Intensity | Reports | Distance |
|---|---|---|---|
| Santiago, Metropolitana, Chile | III · Weak | 5 | 150 km |
| Viña del Mar, Valparaíso, Chile | III · Weak | 2 | 121 km |
| Melipilla, Metropolitana, Chile | III · Weak | 1 | 92 km |
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 75 km
USGS has not published any M2.5+ earthquake within 75 km since this event.
Regional history
Past M5+ earthquakes within 300 km
USGS lists 930 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 8.82010 Maule, Chile EarthquakeFebruary 27, 2010 · 250 km S of this epicenter
- 8.348 km W of Illapel, ChileSeptember 16, 2015 · 269 km N of this epicenter
- 8.2The 1906 Valparaiso, Chile EarthquakeAugust 17, 1906 · 186 km N of this epicenter
- 8.025 km WSW of Valparaíso, ChileMarch 3, 1985 · 95 km N of this epicenter
- 7.826 km WNW of San Carlos, ChileJanuary 25, 1939 · 259 km S of this epicenter
- 7.819 km NNE of Hacienda La Calera, ChileJuly 9, 1971 · 174 km NE of this epicenter
- 7.730 km NNE of Constitución, ChileDecember 1, 1928 · 125 km S of this epicenter
- 7.7103 km NW of Constitución, ChileJanuary 30, 1914 · 141 km SW of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 46 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 35,619 recorded deaths. The most severe:
- 1939M8.3
Chillan
25 Jan 1939 · 254 km away · intensity X
30,000 deaths$920 million damagetsunami
- 1906M8.2
South Central
17 Aug 1906 · 108 km away · intensity XI
4,000 deaths$100 million damagetsunami
- 2010M8.8
Maule, Concepcion, Talcahuano
27 Feb 2010 · 250 km away · intensity IX
558 deaths$30 billion damagetsunami
- 1965M7.3
Central
28 Mar 1965 · 194 km away
400 deaths$125 million damage
- 1928M7.6
Talca, Chillan, Santiago, San Fernando
1 Dec 1928 · 115 km away · intensity IX
279 deathsSevere damage ($5–24M)tsunami
- 1985M8.0
Central Coast, San Antonio, Valparaiso
3 Mar 1985 · 100 km away · intensity VIII
180 deaths$1.5 billion damagetsunami
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.