Reviewed by USGSChile12y ago
M4.1 earthquake 71 km W of Iquique, Chile
Sunday, June 8, 2014, 21:24:13 UTC · 20.231°S, 70.831°W
A magnitude 4.1 earthquake struck 71 km W of Iquique, Chile on Sunday, June 8, 2014, 21:24:13 UTC, at a depth of 20.2 km (shallow).
- Magnitude
- 4.1
- Light · mwr
- Depth
- 20 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 earthquakeDashed circle: 50 km aftershock search area
In context
How big was it, and why here?
Energy released
21 tons of TNT
That is about 1/707 of the Hiroshima bomb. A magnitude 5.0 releases about 22 times more energy.
Tectonic setting
55 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
20 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 lists 18 M2.5+ earthquakes within 50 km in the following 30 days; the largest was M5.8 on June 19, 2014. Most nearby activity right after a large earthquake is aftershocks, which usually become less frequent over days and weeks.
- 4.181 km WNW of Iquique, Chile12y ago · 22 km NW of this epicenter
- 4.298 km WNW of Iquique, Chile12y ago · 42 km NW of this epicenter
- 4.386 km WNW of Iquique, Chile12y ago · 41 km N of this epicenter
- 4.592 km WNW of Iquique, Chile12y ago · 35 km NW of this epicenter
- 4.084 km WSW of Iquique, Chile12y ago · 35 km S of this epicenter
- 4.262 km WSW of Iquique, Chile12y ago · 16 km SE of this epicenter
- 3.993 km WNW of Iquique, Chile12y ago · 33 km NW of this epicenter
- 4.289 km WNW of Iquique, Chile12y ago · 47 km N of this epicenter
Regional history
Past M5+ earthquakes within 300 km
USGS lists 606 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 8.293 km NW of Iquique, ChileApril 1, 2014 · 69 km N of this epicenter
- 7.8102 km ENE of Iquique, ChileJune 13, 2005 · 173 km E of this epicenter
- 7.736 km ESE of Tocopilla, ChileNovember 14, 2007 · 244 km SE of this epicenter
- 7.753 km SW of Iquique, ChileApril 3, 2014 · 52 km SE of this epicenter
- 7.334 km NE of Tocopilla, ChileDecember 21, 1967 · 204 km SE of this epicenter
- 7.334 km S of Iquique, ChileFebruary 23, 1933 · 74 km SE of this epicenter
- 7.2Near the coast of Tarapaca, ChileOctober 4, 1940 · 51 km NE of this epicenter
- 7.268 km SSE of Arica, ChileAugust 8, 1987 · 161 km NE of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 51 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 28,114 recorded deaths. The most severe:
- 1868M8.5
Arica
13 Aug 1868 · 182 km away · intensity XI
25,000 deaths$300 million damagetsunami
- 1877M8.3
Off North Coast
10 May 1877 · 145 km away · intensity XI
2,385 deaths$2 million damagetsunami
- 1833M7.7
Peru: Tacna; Chile: Arica
18 Sep 1833 · 221 km away · intensity VIII
700 deathsSevere damage ($5–24M)tsunami
- 2005M7.7
Tarapaca
13 Jun 2005 · 173 km away
11 deaths$5 million damage
- 2014M8.2
Northern: Iquique, Alto Hospicio
1 Apr 2014 · 69 km away · intensity VIII
7 deaths$100 million damagetsunami
- 1987M6.9
Arica, Iquique
8 Aug 1987 · 161 km away · intensity VII
5 deaths$1 million damage
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.