Reviewed by USGSMexico102y ago
M6.3 earthquake 23 km N of Aratichanguío, Mexico
Friday, August 7, 1925, 07:47:54 UTC · 18.692°N, 101.338°W
A magnitude 6.3 earthquake struck 23 km N of Aratichanguío, Mexico on Friday, August 7, 1925, 07:47:54 UTC, at a depth of 75.0 km (intermediate). It is the strongest earthquake within 300 km since an M6.4 on April 21, 1924.
- Magnitude
- 6.3
- Strong · mw
- Depth
- 75 km
- Intermediate
- Felt reports
- 0
- Did You Feel It?
- Est. shaking
- VI
- Strong (ShakeMap)
- PAGER alert
- None
- Not issued
- Tsunami
- No flag
- USGS feed
Outlined circle: this earthquakeColoured lines: estimated shaking intensity (USGS ShakeMap)
In context
How big was it, and why here?
Energy released
47 kilotons of TNT
That is about 3 times the Hiroshima bomb. It released about 99 times the energy of a magnitude 5.0.
Tectonic setting
186 km
from the nearest mapped plate boundary, between the Cocos and North American plates. Earthquakes this far from a boundary happen on faults inside a plate, often less frequently but sometimes strongly.
Depth: intermediate
75 km
Intermediate-depth earthquakes usually break inside a plate that is sinking into the mantle. Shaking spreads over a wide area but is gentler at the epicenter than a shallow quake of the same size.
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 100 km
USGS has not published any M2.5+ earthquake within 100 km in the 30 days after this event.
Regional history
Past M5+ earthquakes within 300 km
USGS lists 11 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 7.619 km W of Arteaga, MexicoJune 7, 1911 · 125 km W of this epicenter
- 7.525 km S of Tetitlán, MexicoDecember 16, 1911 · 208 km S of this epicenter
- 7.215 km SSW of Colonia Luces en el Mar, MexicoMarch 27, 1908 · 251 km SE of this epicenter
- 7.166 km SSW of Nuxco, MexicoOctober 31, 1909 · 231 km S of this epicenter
- 6.72 km S of San Pedro el Alto, MexicoNovember 19, 1912 · 181 km NE of this epicenter
- 6.711 km SSE of Hacienda de Cabañas, MexicoOctober 13, 1908 · 211 km SE of this epicenter
- 6.633 km SSW of Cuyutlán, MexicoMay 1, 1921 · 299 km W of this epicenter
- 6.512 km NW of Tumbiscatío de Ruiz, MexicoJune 7, 1918 · 120 km W of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 43 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 4,291 recorded deaths. The most severe:
- 1806M7.5
Jalisco,Oaxaca,Michoacan
25 Mar 1806 · 260 km away · intensity VIII
2,000 deathsExtreme damage ($25M+)
- 1818M8.2
Morelos-Guerrero,Mexico City,Guadalajara
31 May 1818 · 277 km away · intensity X
2,000 deathsSevere damage ($5–24M)tsunami
- 1912M6.7
Central, Acambay, Tixmadeje
19 Nov 1912 · 181 km away
202 deathsSevere damage ($5–24M)
- 1847
Jalisco,Oaxaca,Michoacan
2 Oct 1847 · 243 km away · intensity IX
58 deathsSevere damage ($5–24M)
- 1864M7.0
Puebla,Veracruz,Acultzingo,Acatzingo
3 Oct 1864 · 186 km away
20 deathsSevere damage ($5–24M)
- 1907M8.3
Guerrero
15 Apr 1907 · 235 km away
8 deathsModerate damage ($1–5M)tsunami
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.