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Earthquakes in Brazil

Brazil has catalogued 101 M4+ earthquakes since 2005 (ranked 78th of 187 countries), with the strongest reaching magnitude M7.6.

Brazil ranks 78th of 187 countries by catalogued seismic activity - a country with limited but non-zero seismic activity, averaging about 5 M4+ events a year alongside 27 significant M6+ earthquakes since 1900. Its M6+ record runs from 1911 to 2024, peaking in 1963.

101
M4+ events (since 2005)
27
Major M6+ (since 1900)
M7.6
Strongest
~5
M4+ per year

The verdict

Brazil is moderately seismically active, above the global median, with 101 M4+ earthquakes logged since 2005 and 27 major M6+ events since 1900, the strongest reaching magnitude 7.6.

1963
busiest year (2 major events)
571 km
average recorded event depth
4%
of events are shallow (<70 km, the most damaging kind)

Average catalogued magnitude is 4.7 - most events are moderate M4-5 tremors that are felt but rarely cause damage. On the M4+ activity ladder Cayman Islands sits immediately above at 107 events and Cyprus sits immediately below at 97.

Where Brazil sits in the catalog

Rank 78th of 187 tracked countries (58th percentile by M4+ count since 2005). On the M4+ activity ladder Cayman Islands sits immediately above at 107 events and Cyprus sits immediately below at 97.

Same M4+ count, broken by peak magnitude

2 tracked countries share Brazil's exact count of 101 M4+ events since 2005. Among that cohort, Brazil ranks 1st of 2 by strongest recorded magnitude (M6.8).

Country M4+ count Strongest
Brazil (this page) 101 M6.8
Uzbekistan 101 M5.7

Major (M6+) earthquakes in Brazil by year

Count of significant (magnitude 6.0+) events catalogued each year

Value

What this shows Brazil's most active year for major earthquakes was 1963 (2 M6+ events). Major-quake counts are irregular, they track the episodic release of tectonic stress, not a smooth trend.

Source USGS Comprehensive Earthquake Catalog (ComCat) As of 2005–present
0%100%6.9%
Share of Brazil's M4+ catalog that reached significant M6+ severity

7 of 101 catalogued M4+ events since 2005 reached M6.0 or higher.

Magnitude distribution of major events

Breakdown of the 27 significant (M6+) earthquakes on record for Brazil.

How the 27 total breaks down by magnitude M6.0-6.9 is the largest share -- 81.5%

M7.0-7.9

5

18.5%

M6.0-6.9

22

81.5%

Depth of major earthquakes

Hypocentral depth of the 27 M6+ events, shallow quakes shake the surface hardest. Average depth: 571 km.

Brazil96.3%Shallow (<70 km)Intermediate (70-300 km)Deep (>300 km)
Depth distribution of Brazil's M6+ events, USGS ComCat

Shallow (<70 km)

1

3.7% of events

Intermediate (70–300 km)

0

0.0% of events

Deep (>300 km)

26

96.3% of events

Strongest earthquakes in Brazil

The 10 most powerful events on record (USGS, since 1900).

Mag Location Depth
7.6 132 km SW of Tarauacá, Brazil 590.7 km
7.4 128 km SSW of Tarauacá, Brazil 560.0 km
7.1 105 km E of Cruzeiro do Sul, Brazil 558.1 km
7.1 69 km W of Tarauacá, Brazil 593.4 km
7.0 124 km SSW of Tarauacá, Brazil 600.4 km
6.9 108 km W of Tarauacá, Brazil 534.3 km
6.8 90 km W of Tarauacá, Brazil 570.4 km
6.8 23 km WSW of Tarauacá, Brazil 646.0 km
6.7 125 km SSW of Tarauacá, Brazil 602.8 km
6.7 104 km SSW of Tarauacá, Brazil 593.8 km

Significant earthquake record (27 events)

Every catalogued magnitude-6.0-and-above earthquake in Brazil since 1900, most recent first.

Mag Location Depth
6.5 70 km W of Tarauacá, Brazil 621.1 km
6.6 123 km NW of Tarauacá, Brazil 607.0 km
6.5 107 km SSW of Tarauacá, Brazil 622.7 km
6.8 90 km W of Tarauacá, Brazil 570.4 km
6.7 125 km SSW of Tarauacá, Brazil 602.8 km
6.5 87 km W of Tarauacá, Brazil 581.2 km
6.1 55 km W of Tarauacá, Brazil 644.9 km
7.1 105 km E of Cruzeiro do Sul, Brazil 558.1 km
6.0 91 km W of Tarauacá, Brazil 559.9 km
6.9 108 km W of Tarauacá, Brazil 534.3 km
6.1 115 km SSW of Tarauacá, Brazil 602.6 km
6.1 148 km SSW of Tarauacá, Brazil 591.3 km
6.1 86 km WSW of Tarauacá, Brazil 572.8 km
7.1 69 km W of Tarauacá, Brazil 593.4 km
6.3 127 km ENE of Cruzeiro do Sul, Brazil 608.5 km
6.6 125 km SSW of Tarauacá, Brazil 599.9 km
6.2 158 km SSW of Tarauacá, Brazil 598.6 km
6.1 129 km NE of Cruzeiro do Sul, Brazil 563.7 km
6.4 129 km NE of Cruzeiro do Sul, Brazil 567.5 km
7.0 124 km SSW of Tarauacá, Brazil 600.4 km
6.7 104 km SSW of Tarauacá, Brazil 593.8 km
6.3 100 km SSW of Tarauacá, Brazil 593.9 km
7.6 132 km SW of Tarauacá, Brazil 590.7 km
6.3 207 km WSW of Sinop, Brazil 15.0 km
6.8 23 km WSW of Tarauacá, Brazil 646.0 km
6.7 21 km WSW of Tarauacá, Brazil 620.0 km
7.4 128 km SSW of Tarauacá, Brazil 560.0 km

Frequently asked questions

How many earthquakes have occurred in Brazil?
The USGS catalog records 101 earthquakes of magnitude 4.0 or greater in Brazil since 2005, an average of about 5 per year. Separately, 27 significant (M6+) earthquakes are catalogued back to 1900.
What was the strongest earthquake in Brazil?
The strongest catalogued earthquake in Brazil measured magnitude 7.6. Across the full M4+ catalog the average magnitude is 4.7 - most earthquakes are moderate.
How seismically active is Brazil?
By catalogued M4+ activity, Brazil ranks 78th of 187 countries worldwide - a country with limited but non-zero seismic activity. Its busiest year for major (M6+) events was 1963, with 2.
How deep are earthquakes in Brazil?
Across the 27 major (M6+) events on record, the average depth is 571 km. 4% were shallow (under 70 km), where surface shaking is strongest at a given magnitude.
Where does this data come from?
Every figure is derived from the USGS Comprehensive Earthquake Catalog (ComCat). M4+ counts cover 2005 onward (the period of consistent global completeness); the significant-event series covers M6+ back to 1900. Nothing is modelled or estimated.

About Brazil's figures

101 M4+ events since 2005 · strongest M7.6 · average M4.7 · 27 M6+ significant events since 1900 · latest M4+ catalog stamp Apr 27, 2026. Computed from the USGS Comprehensive Earthquake Catalog (ComCat). See the methodology and USGS ComCat.

Disclaimer: PlainQuake is informational only, not an emergency service or engineering advice. See our full disclaimer.

What Brazil's numbers mean

Brazil ranks 78th of 187 countries tracked - a country with limited but non-zero seismic activity.

  • About 5 M4+ earthquakes strike Brazil per year on average, though major (M6+) activity is episodic - 1963 was the busiest year on record with 2 significant events. See the full country ranking
  • 4% of Brazil's catalogued major earthquakes are shallow (under 70km) - shallow events generally produce stronger surface shaking than deep ones of the same magnitude. How depth affects shaking
  • The strongest catalogued event reached M7.6. Compare against neighboring or similarly-ranked countries before drawing conclusions from magnitude alone. Compare strongest earthquakes

Figures reflect the USGS ComCat catalog (M4+ since 2005, M6+ significant events since 1900) - not a real-time hazard assessment. For official guidance, see the USGS Earthquake Hazards Program.

According to the US Geological Survey Earthquake Hazards Program, PlainQuake's figures are rendered directly from 315,341 recorded M4+ earthquakes and 14,428 significant M6+ events (USGS ComCat, 2005-present) -- no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026-07-19.