Reviewed by USGSMexico31y ago
M4.4 earthquake 178 km SW of José María Morelos, Mexico
Monday, October 23, 1995, 08:03:58 UTC · 18.630°N, 106.475°W
A magnitude 4.4 earthquake struck 178 km SW of José María Morelos, Mexico on Monday, October 23, 1995, 08:03:58 UTC, at a depth of 33.0 km (shallow).
- Magnitude
- 4.4
- Light · mb
- Depth
- 33 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 Rivera and Pacific plates. Earthquakes cluster along boundaries like this one, where plates collide, pull apart or slide past each other.
Depth: shallow
33 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 143 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 8.11932 Jalisco, Mexico EarthquakeJune 3, 1932 · 297 km NE of this epicenter
- 8.01995 Colima-Jalisco, Mexico EarthquakeOctober 9, 1995 · 244 km E of this epicenter
- 7.712 km NNE of La Central, MexicoJune 22, 1932 · 230 km E of this epicenter
- 7.0102 km SW of Barra de Navidad, MexicoNovember 30, 1934 · 124 km E of this epicenter
- 7.0166 km WSW of Corral del Risco (Punta de Mita), MexicoMay 9, 1905 · 213 km N of this epicenter
- 7.0Revilla Gigedo Islands regionDecember 17, 1905 · 222 km W of this epicenter
- 6.9211 km SW of José María Morelos, MexicoNovember 16, 1925 · 33 km SW of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 18 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 4,529 recorded deaths. The most severe:
- 1806M7.5
Jalisco,Oaxaca,Michoacan
25 Mar 1806 · 283 km away · intensity VIII
2,000 deathsExtreme damage ($25M+)
- 1818M8.2
Morelos-Guerrero,Mexico City,Guadalajara
31 May 1818 · 272 km away · intensity X
2,000 deathsSevere damage ($5–24M)tsunami
- 1932M8.1
Near Coast Of Jalisco
3 Jun 1932 · 290 km away · intensity X
400 deathsSevere damage ($5–24M)tsunami
- 1932M7.7
Central
22 Jun 1932 · 230 km away
75 deathsSevere damage ($5–24M)tsunami
- 1995M8.0
Jalisco, Manzanillo, San Patricio Melaque
9 Oct 1995 · 244 km away
50 deathsModerate damage ($1–5M)tsunami
- 1948M6.6
Maria Madre Island
4 Dec 1948 · 286 km away
4 deathsSevere damage ($5–24M)tsunami
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.