M4.6 earthquake 35 km SE of Calama, Chile
A magnitude 4.6 earthquake struck 35 km SE of Calama, Chile on Mon, Mar 21, 1988, 4:44 PM GMT-4 (20:44 UTC), 153 km (95 mi) below the surface.
A larger quake followed: M5.1 84 km NE of Calama, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.6 (mb), light
- Local time
- UTC
- 1988-03-21 20:44:37 UTC
- Depth
- 152.9 km (95.0 mi), intermediate-depth
- Epicenter
- 22.648° S, 68.647° 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 1.6 and up: 2 in the 60 days after this one and 2 in the 30 days before it.
After
- 5.184 km NE of Calama, Chile · 14068 days ago · 125 km deep · 88 km away
- 4.229 km ESE of Calama, Chile · 14062 days ago · 149 km deep · 7 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0003e68. Read Tue, Sep 29, 2026, 4:22 AM UTC.