M4.5 earthquake 26 km SW of Ixtapa, Mexico
A magnitude 4.5 earthquake struck 26 km SW of Ixtapa, Mexico on Mon, Dec 23, 1985, 5:30 AM CST (11:30 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M5.1 15 km E of Petacalco, Mexico. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.5 (mb), light
- Local time
- UTC
- 1985-12-23 11:30:43 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 17.495° N, 101.813° W
- Region
- Mexico
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Depth from
- OPERATOR_ASSIGNED
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 2 in the 30 days before it.
After
- 5.115 km E of Petacalco, Mexico · 14869 days ago · 33 km deep · 56 km away
- 4.511 km WSW of Papanoa, Mexico · 14857 days ago · 33 km deep · 75 km away
- 4.631 km SSW of Palos Blancos, Mexico · 14852 days ago · 33 km deep · 44 km away
- 4.913 km WNW of Vallecitos de Zaragoza, Mexico · 14843 days ago · 68 km deep · 67 km away
Before
Earthquakes todayMexico earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002pa1. Read Mon, Sep 28, 2026, 7:43 PM UTC.