Brazil earthquakes

M4.5 earthquake 173 km SSW of Tarauacá, Brazil

A magnitude 4.5 earthquake struck 173 km SSW of Tarauacá, Brazil on Wed, Oct 28, 2015, 12:10 PM GMT-5 (17:10 UTC), 604 km (375 mi) below the surface.

A larger quake followed: M7.6 185 km WNW of Iñapari, Peru. This one was a foreshock.

Tarauacá forecastMore in Brazil

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
4.5 (mb), light
Local time
UTC
2015-10-28 17:10:55 UTC
Depth
603.7 km (375.1 mi), deep
Epicenter
9.642° S, 71.298° W
Region
Brazil
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

Did You Feel It? map: shaking reported by the public
Shaking reported by the public, by area. Map: USGS Did You Feel It?

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 10.4 km horizontally, 7.1 km in depth
Magnitude uncertainty
±0.06
Depth from
From location
Station coverage gap
68°
Stations used
133

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 14 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 7.6185 km WNW of Iñapari, Peru · 3960 days ago · 621 km deep · 56 km away · felt by 15
  2. 4.1159 km WNW of Iñapari, Peru · 3960 days ago · 619 km deep · 86 km away
  3. 4.3196 km WNW of Iñapari, Peru · 3960 days ago · 590 km deep · 52 km away
  4. 4.3146 km SSW of Tarauacá, Brazil · 3960 days ago · 515 km deep · 42 km away
  5. 4.3193 km ESE of Marechal Thaumaturgo, Brazil · 3960 days ago · 630 km deep · 23 km away
  6. 4.2176 km WNW of Iñapari, Peru · 3959 days ago · 592 km deep · 99 km away
  7. 6.7125 km SSW of Tarauacá, Brazil · 3959 days ago · 603 km deep · 51 km away · felt by 2
  8. 4.9117 km SSW of Tarauacá, Brazil · 3959 days ago · 603 km deep · 64 km away
  9. 4.6128 km SSW of Tarauacá, Brazil · 3959 days ago · 602 km deep · 49 km away
  10. 4.9184 km SSW of Tarauacá, Brazil · 3959 days ago · 606 km deep · 14 km away
  11. 5.1130 km SSW of Tarauacá, Brazil · 3958 days ago · 617 km deep · 45 km away
  12. 4.2195 km WNW of Iñapari, Peru · 3956 days ago · 626 km deep · 60 km away
  13. 4.0209 km SE of Marechal Thaumaturgo, Brazil · 3951 days ago · 623 km deep · 70 km away
  14. 4.2190 km SSW of Tarauacá, Brazil · 3949 days ago · 638 km deep · 24 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us2000409l. Read Mon, Sep 28, 2026, 8:41 AM UTC.