Reviewed by USGSPeru12d ago
M4.8 earthquake 107 km WSW of Alianza Cristiana, Peru
Monday, September 14, 2026, 19:16:49 UTC · 3.745°S, 77.364°W
A magnitude 4.8 earthquake struck 107 km WSW of Alianza Cristiana, Peru on Monday, September 14, 2026, 19:16:49 UTC, at a depth of 104.9 km (intermediate). It is the strongest earthquake within 300 km since an M5.3 on September 10, 2026.
- Magnitude
- 4.8
- Light · mb
- Depth
- 105 km
- Intermediate
- Felt reports
- 0
- Did You Feel It?
- Est. shaking
- —
- No ShakeMap
- PAGER alert
- None
- Not issued
- Tsunami
- No flag
- USGS feed
Outlined circle: this earthquakeDashed circle: 50 km aftershock search area
In context
How big was it, and why here?
Energy released
239 tons of TNT
That is about 1/63 of the Hiroshima bomb. A magnitude 5.0 releases about 2 times more energy.
Tectonic setting
260 km
from the nearest mapped plate boundary, between the North Andes and South American plates. Earthquakes this far from a boundary happen on faults inside a plate, often less frequently but sometimes strongly.
Depth: intermediate
105 km
Intermediate-depth earthquakes usually break inside a plate that is sinking into the mantle. Shaking spreads over a wide area but is gentler at the epicenter than a shallow quake of the same size.
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 lists 1 M2.5+ earthquake within 50 km since this event; the largest was M4.9 on September 19, 2026. Most nearby activity right after a large earthquake is aftershocks, which usually become less frequent over days and weeks.
Regional history
Past M5+ earthquakes within 300 km
USGS lists 295 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 7.543 km NNW of Barranca, PeruNovember 28, 2021 · 101 km SE of this epicenter
- 7.516 km W of Barranca, PeruSeptember 28, 1906 · 133 km SE of this epicenter
- 7.539 km NW of Yurimaguas, PeruSeptember 26, 2005 · 240 km SE of this epicenter
- 7.5115 km ESE of Palora, EcuadorFebruary 22, 2019 · 177 km N of this epicenter
- 7.498 km ESE of Sucúa, EcuadorJuly 27, 1971 · 100 km N of this epicenter
- 7.323 km N of Bellavista, PeruMay 14, 1928 · 238 km SW of this epicenter
- 7.251 km N of Barranca, PeruOctober 28, 1997 · 103 km SE of this epicenter
- 7.1EcuadorAugust 12, 2010 · 276 km N of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 25 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 46,373 recorded deaths. The most severe:
- 1797M8.3
Riobamba, Quito, Cuzco; Peru; Colombia
4 Feb 1797 · 275 km away · intensity XI
40,000 deathsExtreme damage ($25M+)tsunami
- 1949M6.5
Tungurahua
5 Aug 1949 · 298 km away
6,000 deaths$8 million damage
- 1990M6.5
Moyabamba-Riojo
30 May 1990 · 253 km away · intensity VI
200 deaths$1 million damage
- 1991M6.7
Rioja, Moyobamba, Nueva Cajamarca
5 Apr 1991 · 251 km away · intensity VII
53 deathsSevere damage ($5–24M)
- 1924M6.9
Ecuador
3 Mar 1924 · 275 km away
40 deathsLimited damage (under $1M)
- 1928M7.3
Chacahpoyas,Huancabamba,Cajamarca,Pinpincos
14 May 1928 · 237 km away · intensity X
29 deathsSevere damage ($5–24M)
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.