M4.6 earthquake 94 km S of Calama, Chile
A magnitude 4.6 earthquake struck 94 km S of Calama, Chile on Wed, Oct 28, 2015, 4:45 PM GMT-3 (19:45 UTC), 62 km (39 mi) below the surface.
A larger quake followed: M5.8 43 km SSW of San Pedro de Atacama, 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
- 2015-10-28 19:45:03 UTC
- Depth
- 62.2 km (38.6 mi), shallow
- Epicenter
- 23.300° S, 69.092° W
- Region
- Chile
- Felt reports
- 1
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
1 person reported to the USGS what they felt; the strongest reported shaking was III, weak shaking.
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 5.8 km horizontally, 5.3 km in depth
- Magnitude uncertainty
- ±0.06
- Depth from
- From location
- Station coverage gap
- 38°
- Stations used
- 114
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 5 in the 60 days after this one and 3 in the 30 days before it.
After
- 5.843 km SSW of San Pedro de Atacama, Chile · 3985 days ago · 111 km deep · 69 km away · felt by 16
- 5.3105 km SW of San Pedro de Atacama, Chile · 3977 days ago · 101 km deep · 34 km away · felt by 11
- 4.9108 km SW of San Pedro de Atacama, Chile · 3964 days ago · 92 km deep · 42 km away · felt by 1
- 4.131 km WNW of San Pedro de Atacama, Chile · 3957 days ago · 104 km deep · 82 km away
- 4.214 km ESE of Calama, Chile · 3953 days ago · 87 km deep · 91 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us200040an. Read Tue, Sep 29, 2026, 2:49 PM UTC.