Reviewed by USGSPeru2y ago
M4.4 earthquake 106 km SSW of San Juan, Peru
Tuesday, July 9, 2024, 02:06:41 UTC · 16.286°S, 75.466°W
A magnitude 4.4 earthquake struck 106 km SSW of San Juan, Peru on Tuesday, July 9, 2024, 02:06:41 UTC, at a depth of 10.0 km (shallow).
- Magnitude
- 4.4
- Light · mb
- Depth
- 10 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
60 tons of TNT
That is about 1/251 of the Hiroshima bomb. A magnitude 5.0 releases about 8 times more energy.
Tectonic setting
10 km
from the nearest mapped plate boundary, between the Nazca and Altiplano plates. Earthquakes cluster along boundaries like this one, where plates collide, pull apart or slide past each other.
Depth: shallow
10 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 398 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 8.46 km SSW of Atico, PeruJune 23, 2001 · 195 km E of this epicenter
- 8.121 km NNE of Minas de Marcona, PeruAugust 24, 1942 · 146 km N of this epicenter
- 7.737 km SSW of Atico, PeruAugust 6, 1913 · 186 km E of this epicenter
- 7.760 km SW of Changuillo, PeruNovember 12, 1996 · 146 km N of this epicenter
- 7.235 km N of El Cardo, PeruOctober 11, 1922 · 295 km E of this epicenter
- 7.210 km WSW of Atiquipa, PeruJune 28, 2024 · 120 km NE of this epicenter
- 7.121 km SSE of Nazca, PeruJanuary 15, 1960 · 156 km NE of this epicenter
- 7.137 km W of Atiquipa, PeruJanuary 14, 2018 · 99 km NE of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 26 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 465 recorded deaths. The most severe:
- 1821
Camana, Ocona, Caraveli
10 Jul 1821 · 268 km away · intensity VIII
162 deathsSevere damage ($5–24M)
- 2001M8.4
Arequipa, Moquegua, Tacna, Ayacucho
23 Jun 2001 · 195 km away · intensity VIII
103 deaths$200 million damagetsunami
- 1960M7.8
Arequipa,Chuquibamba,Caraveli,Cotahuasi
13 Jan 1960 · 296 km away · intensity X
63 deathsSevere damage ($5–24M)tsunami
- 1914
Pararca,Paysa,Colta,Oyala
2 Dec 1914 · 271 km away · intensity X
34 deathsSevere damage ($5–24M)
- 1813
Ica
30 Mar 1813 · 243 km away · intensity VII
32 deathsModerate damage ($1–5M)
- 1942M8.2
Ica, Nazca
24 Aug 1942 · 154 km away · intensity IX
30 deathsSevere damage ($5–24M)tsunami
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.