Country profile · USGS ComCat
Earthquakes in Gabon
Gabon has catalogued 11 M4+ earthquakes since 2005 (ranked 139th of 187 countries), with the strongest reaching magnitude M6.2.
Gabon ranks 139th of 187 countries by catalogued seismic activity - a country with limited but non-zero seismic activity, averaging about 1 M4+ events a year alongside 1 significant M6+ earthquakes since 1900. The M6+ record here is a single event, so one quake sets every figure on this page.
- 11
- M4+ events (since 2005)
- 1
- Major M6+ (since 1900)
- M6.2
- Strongest
- ~1
- M4+ per year
The verdict
Gabon is below the global median in catalogued seismic activity, with 11 M4+ earthquakes logged since 2005 and 1 major M6+ events since 1900, the strongest reaching magnitude 6.2.
- 1974
- busiest year (1 major events)
- 33 km
- average recorded event depth
- 100%
- 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 Angola sits immediately above at 12 events and Austria sits immediately below at 10.
Where Gabon sits in the catalog
Rank 139th of 187 tracked countries (25th percentile by M4+ count since 2005). On the M4+ activity ladder Angola sits immediately above at 12 events and Austria sits immediately below at 10.
Same M4+ count, broken by peak magnitude
3 tracked countries share Gabon's exact count of 11 M4+ events since 2005. Among that cohort, Gabon ranks 1st of 3 by strongest recorded magnitude (M5.5).
0 of 11 catalogued M4+ events since 2005 reached M6.0 or higher.
Magnitude distribution of major events
Breakdown of the 1 significant (M6+) earthquakes on record for Gabon.
M6.0-6.9
1
100.0%
Depth of major earthquakes
Hypocentral depth of the 1 M6+ events, shallow quakes shake the surface hardest. Average depth: 33 km.
Shallow (<70 km)
1
100.0% of events
Intermediate (70–300 km)
0
0.0% of events
Deep (>300 km)
0
0.0% of events
Strongest earthquakes in Gabon
The 1 most powerful events on record (USGS, since 1900).
| Mag | Location | Depth | Date |
|---|---|---|---|
| 6.2 | 64 km NNE of Lastoursville, Gabon | 33.0 km | Sep 23, 1974 |
Significant earthquake record (1 events)
Every catalogued magnitude-6.0-and-above earthquake in Gabon since 1900, most recent first.
| Mag | Location | Depth | Date |
|---|---|---|---|
| 6.2 | 64 km NNE of Lastoursville, Gabon | 33.0 km | Sep 23, 1974 |
Other countries in this catalog sample
A Gabon-keyed shuffle of the full 186-country roster, not the six nearest by count.
Peak-magnitude sample from the same roster
A second Gabon-keyed shuffle of countries with a recorded max magnitude.
Understand the data
Frequently asked questions
How many earthquakes have occurred in Gabon? ▼
What was the strongest earthquake in Gabon? ▼
How seismically active is Gabon? ▼
How deep are earthquakes in Gabon? ▼
Where does this data come from? ▼
About Gabon's figures
11 M4+ events since 2005 · strongest M6.2 · average M4.7 · 1 M6+ significant events since 1900 · latest M4+ catalog stamp Jan 9, 2025. 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 Gabon's numbers mean
Gabon ranks 139th of 187 countries tracked - a country with limited but non-zero seismic activity.
- About 1 M4+ earthquakes strike Gabon per year on average, though major (M6+) activity is episodic - 1974 was the busiest year on record with 1 significant events. See the full country ranking
- 100% of Gabon'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 M6.2. 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.