Reviewed by USGSMexico13y ago
M4.1 earthquake 75 km SW of La Esperanza (El Zapotal), Mexico
Tuesday, April 30, 2013, 10:10:37 UTC · 14.914°N, 93.602°W
A magnitude 4.1 earthquake struck 75 km SW of La Esperanza (El Zapotal), Mexico on Tuesday, April 30, 2013, 10:10:37 UTC, at a depth of 16.8 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
91 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 575 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 7.726 km SSW of La Gomera, GuatemalaAugust 6, 1942 · 288 km SE of this epicenter
- 7.44 km NW of Santa María Zapotitlán, MexicoAugust 23, 1965 · 280 km NW of this epicenter
- 7.433 km S of Champerico, GuatemalaNovember 7, 2012 · 211 km SE of this epicenter
- 7.34 km SSW of Puerto Madero, MexicoDecember 14, 1935 · 128 km E of this epicenter
- 7.334 km SW of Puerto Madero, MexicoApril 29, 1970 · 117 km SE of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 30 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 4,054 recorded deaths. The most severe:
- 1902M7.5
Quezaltenango, San Marcos
19 Apr 1902 · 298 km away
2,000 deathsSevere damage ($5–24M)tsunami
- 1982M3.5
Chiapas
28 Mar 1982 · 263 km away
1,879 deaths$3 million damage
- 2012M7.3
San Marcos, San Cristobal Cochu
7 Nov 2012 · 211 km away
48 deaths$210 million damagetsunami
- 1991M6.2
Guatemala City, Pachuta, Solola
18 Sep 1991 · 283 km away · intensity VI
25 deathsSevere damage ($5–24M)
- 1870M7.9
Oaxaca,Zanaguia,San Francisco Ozolotepec
11 May 1870 · 295 km away
24 deathsSevere damage ($5–24M)tsunami
- 1816M7.5
Soloma
22 Jul 1816 · 235 km away · intensity IX
23 deathsSevere damage ($5–24M)
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.