Reviewed by USGSMexico13y ago
M4.1 earthquake 95 km SSW of Manuel Ávila Camacho (Ponte Duro), Mexico
Saturday, January 12, 2013, 19:24:32 UTC · 15.043°N, 94.006°W
A magnitude 4.1 earthquake struck 95 km SSW of Manuel Ávila Camacho (Ponte Duro), Mexico on Saturday, January 12, 2013, 19:24:32 UTC, at a depth of 16.5 km (shallow).
- Magnitude
- 4.1
- Light · md
- Depth
- 17 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
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
82 km
from the nearest mapped plate boundary, between the Cocos and North American plates. Earthquakes cluster along boundaries like this one, where plates collide, pull apart or slide past each other.
Depth: shallow
17 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 544 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 7.72 km ESE of San Agustín Loxicha, MexicoNovember 29, 1978 · 297 km W of this epicenter
- 7.65 km SSW of San Miguel Suchixtepec, MexicoJanuary 15, 1931 · 288 km NW of this epicenter
- 7.48 km ENE of Santiago Xanica, MexicoMarch 22, 1928 · 255 km NW of this epicenter
- 7.44 km NW of Santa María Zapotitlán, MexicoAugust 23, 1965 · 235 km NW of this epicenter
- 7.433 km S of Champerico, GuatemalaNovember 7, 2012 · 256 km SE of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 27 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 2,019 recorded deaths. The most severe:
- 1982M3.5
Chiapas
28 Mar 1982 · 260 km away
1,879 deaths$3 million damage
- 2012M7.3
San Marcos, San Cristobal Cochu
7 Nov 2012 · 256 km away
48 deaths$210 million damagetsunami
- 1870M7.9
Oaxaca,Zanaguia,San Francisco Ozolotepec
11 May 1870 · 249 km away
24 deathsSevere damage ($5–24M)tsunami
- 1816M7.5
Soloma
22 Jul 1816 · 274 km away · intensity IX
23 deathsSevere damage ($5–24M)
- 1968M6.1
S Chiapas
25 Sep 1968 · 168 km away
20 deathsModerate damage ($1–5M)tsunami
- 1978M7.7
Oaxaca
29 Nov 1978 · 297 km away
9 deathsModerate damage ($1–5M)tsunami
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.