M6.6 earthquake 123 km NW of Tarauacá, Brazil
A magnitude 6.6 earthquake struck 123 km NW of Tarauacá, Brazil on Sat, Jan 20, 2024, 4:31 PM GMT-5 (21:31 UTC), 607 km (377 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 6.6 (mww), strong
- Local time
- UTC
- 2024-01-20 21:31:05 UTC
- Depth
- 607.0 km (377.2 mi), deep
- Epicenter
- 7.288° S, 71.464° W
- Region
- Brazil
- Felt reports
- 6
- Strongest shaking
- III, weak shaking
- PAGER alert
- Green
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Shaking
The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.
- Strongest estimated
- III, weak shaking
- Peak ground acceleration
- 0.2% of gravity
- Peak ground velocity
- 0.4 cm/s
- Map
- Automatic
Did you feel it?
6 people reported to the USGS what they felt; the strongest reported shaking was IV, light shaking.
Estimated impact
The USGS PAGER system estimates deaths and economic losses from the shaking and the population and buildings exposed to it.
- Alert level
- Green: little or no damage or loss of life expected
| Range | Chance |
|---|---|
| Under 1 | 65% |
| 1 to 10 | 30% |
| 10 to 100 | 4% |
| 100 to 1,000 | Under 1% |
| 1,000 to 10,000 | Under 1% |
| 10,000 to 100,000 | Under 1% |
| 100,000 to 10,000,000 | Under 1% |
| Range, million USD | Chance |
|---|---|
| Under 1 | 65% |
| 1 to 10 | 30% |
| 10 to 100 | 4% |
| 100 to 1,000 | Under 1% |
| 1,000 to 10,000 | Under 1% |
| 10,000 to 100,000 | Under 1% |
| 100,000 to 10,000,000 | Under 1% |
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
- 6.6 Mww
- Nodal plane 1
- Strike 17°, dip 7°, rake -62°
- Nodal plane 2
- Strike 169°, dip 84°, rake -93°
- Landslide alert
- Green
- Liquefaction alert
- Green
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 9.4 km horizontally, 1.9 km in depth
- Magnitude uncertainty
- ±0.07
- Depth from
- From modeling of broad-band P waveforms
- Station coverage gap
- 36°
- Stations used
- 185
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 3.6 and up: 0 in the 60 days after this one and 0 in the 30 days before it.
None recorded.
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000m52p (also filed as usauto6000m52p, pt24020001, at00s7kx3u). Read Wed, Sep 30, 2026, 11:41 AM UTC.