M4.9 earthquake 77 km S of Calama, Chile
A magnitude 4.9 earthquake struck 77 km S of Calama, Chile on Wed, Aug 28, 2019, 8:43 AM GMT-4 (12:43 UTC), 90 km (56 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.9 (Mww, W-phase moment), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2019-08-28 12:43:42 UTC
- Depth
- 89.9 km (55.9 mi), intermediate-depth
- Epicenter
- 23.159° S, 68.953° W
- Region
- Chile
- Felt reports
- 2
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Magnitude estimates
Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.
| Mag. | Scale | Computed by | Notes |
|---|---|---|---|
| 4.9 | Mww, W-phase moment | USGS National Earthquake Information Center | Preferred · Reviewed · ±0.068 · 21 stations |
| 4.96 | Mw, moment | ISC-GEM global catalog | Final · ±0.1 |
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
- Normal
- Moment magnitude
- 4.9 Mww
- Nodal plane 1
- Strike 153°, dip 25°, rake -102°
- Nodal plane 2
- Strike 347°, dip 65°, rake -84°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 3.8 km horizontally, 4.8 km in depth
- Magnitude uncertainty
- ±0.07
- Depth from
- From location
- Station coverage gap
- 34°
- Stations used
- 121
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.9 and up: 4 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.684 km SSW of Calama, Chile · 2562 days ago · 106 km deep · 16 km away
- 4.062 km SSW of Calama, Chile · 2553 days ago · 69 km deep · 39 km away
- 4.2122 km SW of San Pedro de Atacama, Chile · 2542 days ago · 93 km deep · 65 km away
- 4.112 km WNW of Calama, Chile · 2538 days ago · 103 km deep · 84 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000594x (also filed as iscgem616251961). Read Fri, Oct 2, 2026, 5:52 AM UTC.