M4.8 earthquake 57 km WSW of San Antonio, Chile
A magnitude 4.8 earthquake struck 57 km WSW of San Antonio, Chile on Sat, Apr 18, 1987, 8:07 PM GMT-4 (00:07 UTC), 58 km (36 mi) below the surface.
A larger quake followed: M5.8 56 km WSW of San Antonio, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.8 (mb), light
- Local time
- UTC
- 1987-04-19 00:07:36 UTC
- Depth
- 57.5 km (35.7 mi), shallow
- Epicenter
- 33.749° S, 72.195° W
- Region
- Chile
- 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
- FROM_LOCATION
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.8 and up: 4 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.578 km WSW of San Antonio, Chile · 14404 days ago · 33 km deep · 26 km away
- 4.668 km SW of San Antonio, Chile · 14404 days ago · 33 km deep · 29 km away
- 5.856 km WSW of San Antonio, Chile · 14384 days ago · 31 km deep · 2 km away
- 3.630 km SSW of San Antonio, Chile · 14355 days ago · 22 km deep · 39 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp000349e. Read Wed, Sep 30, 2026, 4:58 PM UTC.