Reviewed by USGSPeru101y ago
M5.7 earthquake 84 km WNW of San Juan, Peru
Saturday, June 5, 1926, 01:20:48 UTC · 15.078°S, 75.892°W
A magnitude 5.7 earthquake struck 84 km WNW of San Juan, Peru on Saturday, June 5, 1926, 01:20:48 UTC, at a depth of 35.0 km (shallow). It is the strongest earthquake within 300 km since an M6.3 on April 6, 1922.
- Magnitude
- 5.7
- Moderate · mw
- 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
6 kilotons of TNT
That is about 1/3 of the Hiroshima bomb. It released about 12 times the energy of a magnitude 5.0.
Tectonic setting
43 km
from the nearest mapped plate boundary, between the Altiplano and South American plates. Earthquakes cluster along boundaries like this one, where plates collide, pull apart or slide past each other.
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 75 km
USGS has not published any M2.5+ earthquake within 75 km in the 30 days after this event.
Regional history
Past M5+ earthquakes within 300 km
USGS lists 7 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 7.737 km SSW of Atico, PeruAugust 6, 1913 · 282 km SE of this epicenter
- 6.913 km SSW of San Juan, PeruOctober 3, 1916 · 178 km E of this epicenter
- 6.7165 km SSW of Atiquipa, PeruJuly 28, 1913 · 252 km SE of this epicenter
- 6.7103 km SSW of Atico, PeruSeptember 13, 1919 · 297 km SE of this epicenter
- 6.512 km S of Chiara, PeruJanuary 9, 1921 · 263 km NE of this epicenter
- 6.512 km WNW of Cotaruse, PeruFebruary 28, 1920 · 288 km E of this epicenter
- 6.3144 km W of Paracas, PeruApril 6, 1922 · 213 km NW of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 11 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 66 recorded deaths. The most severe:
- 1914
Pararca,Paysa,Colta,Oyala
2 Dec 1914 · 289 km away · intensity X
34 deathsSevere damage ($5–24M)
- 1813
Ica
30 Mar 1813 · 121 km away · intensity VII
32 deathsModerate damage ($1–5M)
- 1913M7.9
Caraveli, Chuquibamba, Ocona, Atico
6 Aug 1913 · 294 km away · intensity X
Severe damage ($5–24M)tsunami
- 1914
Caraveli,Nazca,Ica,Atico
11 Sep 1914 · 265 km away · intensity VII
Moderate damage ($1–5M)
- 1869
Arequipa
19 Aug 1869 · 259 km away
Limited damage (under $1M)tsunami
- 1716M8.6
Peru
11 Feb 1716 · 154 km away · intensity X
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.