M4.5 earthquake 66 km SW of San Antonio, Chile
A magnitude 4.5 earthquake struck 66 km SW of San Antonio, Chile on Tue, Jun 15, 2021, 9:57 AM GMT-4 (13:57 UTC), 18 km (11 mi) below the surface.
A larger quake followed: M4.6 28 km NW of Cartagena, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.5 (Mwr, regional moment), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2021-06-15 13:57:37 UTC
- Depth
- 18.2 km (11.3 mi), shallow
- Epicenter
- 33.991° S, 72.152° W
- Region
- Chile
- Felt reports
- 2
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
2 people reported to the USGS what they felt; the strongest reported shaking was III, weak shaking.
Fault motion and ground failure
How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.
- Faulting
- Oblique reverse
- Moment magnitude
- 4.5 Mwr
- Nodal plane 1
- Strike 40°, dip 18°, rake 129°
- Nodal plane 2
- Strike 179°, dip 76°, rake 79°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 4.9 km horizontally, 3.5 km in depth
- Magnitude uncertainty
- ±0.04
- Depth from
- From location
- Station coverage gap
- 130°
- Stations used
- 80
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 3 in the 30 days before it.
After
- 4.324 km NNW of Cartagena, Chile · 1935 days ago · 29 km deep · 83 km away · felt by 39
- 4.389 km WSW of San Antonio, Chile · 1933 days ago · 10 km deep · 34 km away · felt by 1
- 4.549 km WSW of Santa Cruz, Chile · 1913 days ago · 38 km deep · 86 km away · felt by 7
- 4.628 km NW of Cartagena, Chile · 1894 days ago · 34 km deep · 72 km away · felt by 44
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000ed7w. Read Sat, Oct 3, 2026, 8:12 AM UTC.