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Earthquakes in Cayman Islands

Cayman Islands ranks 81st of 215 countries by catalogued seismic activity - a country with limited but non-zero seismic activity. Below: the full M6+ event history, magnitude and depth profile, and yearly trend, straight from USGS data.

106
M4+ events (since 2005)
9
Major M6+ (since 1900)
M7.6
Strongest
~5
M4+ per year

The verdict

Cayman Islands has logged 106 M4+ earthquakes since 2005 and 9 major M6+ events since 1900, the strongest reaching magnitude 7.6.

#81
of 215 countries by M4+ activity
106
catalogued M4+ events (2005–present)
M7.6
strongest earthquake on record
9
major M6+ events since 1900

Average catalogued magnitude is 4.5 - most events are moderate M4–5 tremors that are felt but rarely cause damage.

Major (M6+) earthquakes in Cayman Islands by year

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

Value

What this shows Cayman Islands's most active year for major earthquakes was 2004 (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 2025

Magnitude distribution of major events

Breakdown of the 9 significant (M6+) earthquakes on record for Cayman Islands.

M7.0-7.9

1

11.1%

M6.0-6.9

8

88.9%

Depth of major earthquakes

Hypocentral depth of the 9 M6+ events, shallow quakes shake the surface hardest. Average depth: 14 km.

Shallow (<70 km)

9

100.0% of events

Intermediate (70–300 km)

0

0.0% of events

Deep (>300 km)

0

0.0% of events

Strongest earthquakes in Cayman Islands

The 9 most powerful events on record (USGS, since 1900).

Mag Location Depth
7.6 210 km SSW of George Town, Cayman Islands 14.3 km
6.8 36 km S of George Town, Cayman Islands 10.0 km
6.3 209 km SSW of George Town, Cayman Islands 10.0 km
6.1 55 km SE of East End, Cayman Islands 10.0 km
6.1 55 km S of Bodden Town, Cayman Islands 20.0 km
6.1 192 km SSW of George Town, Cayman Islands 15.0 km
6.1 174 km SSW of George Town, Cayman Islands 10.0 km
6.0 170 km S of George Town, Cayman Islands 25.2 km
6.0 61 km SW of George Town, Cayman Islands 10.0 km

Significant earthquake record (9 events)

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

Mag Location Depth
7.6 210 km SSW of George Town, Cayman Islands 14.3 km
6.1 55 km SE of East End, Cayman Islands 10.0 km
6.8 36 km S of George Town, Cayman Islands 10.0 km
6.0 170 km S of George Town, Cayman Islands 25.2 km
6.3 209 km SSW of George Town, Cayman Islands 10.0 km
6.0 61 km SW of George Town, Cayman Islands 10.0 km
6.1 55 km S of Bodden Town, Cayman Islands 20.0 km
6.1 192 km SSW of George Town, Cayman Islands 15.0 km
6.1 174 km SSW of George Town, Cayman Islands 10.0 km

Countries with similar seismic activity

Comparable catalogued earthquake frequency to Cayman Islands.

Brazil

101 M4+ events · strongest M6.8

M6.8

Uzbekistan

101 M4+ events · strongest M5.7

M5.7

Anguilla

113 M4+ events · strongest M5.6

M5.6

Saudi Arabia

114 M4+ events · strongest M5.7

M5.7

Cyprus

97 M4+ events · strongest M6.6

M6.6

Cuba

96 M4+ events · strongest M6.8

M6.8

Understand the data

How earthquakes are measured

Magnitude scales, seismographs, and depth.

Reading earthquake data

Interpreting magnitude, depth and frequency.

Earthquake preparedness

Before, during and after a quake.

Frequently asked questions

How many earthquakes have occurred in Cayman Islands? ▼
The USGS catalog records 106 earthquakes of magnitude 4.0 or greater in Cayman Islands since 2005, an average of about 5 per year. Separately, 9 significant (M6+) earthquakes are catalogued back to 1900.
What was the strongest earthquake in Cayman Islands? ▼
The strongest catalogued earthquake in Cayman Islands measured magnitude 7.6. Across the full M4+ catalog the average magnitude is 4.5 - most earthquakes are moderate.
How seismically active is Cayman Islands? ▼
By catalogued M4+ activity, Cayman Islands ranks 81st of 215 countries worldwide - a country with limited but non-zero seismic activity. Its busiest year for major (M6+) events was 2004, with 2.
How deep are earthquakes in Cayman Islands? ▼
Across the 9 major (M6+) events on record, the average depth is 14 km. 100% 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 this data

Every figure on this page is computed directly from the USGS Comprehensive Earthquake Catalog (ComCat), the public-domain record maintained by the USGS Earthquake Hazards Program. Two series are combined: a worldwide catalog of magnitude-4.0-and-above events from 2005 onward, the period over which the global seismograph network reliably detects and locates earthquakes everywhere, and a historical series of significant magnitude-6.0-and-above events stretching back to 1900. Magnitudes use the moment-magnitude scale (Mw), the modern standard that supersedes the older Richter scale; because the scale is logarithmic, each whole step represents roughly thirty-two times more energy released. Depth is measured in kilometres from the surface, and shallow earthquakes generally produce stronger shaking than deep ones of the same magnitude. Counts reflect what instruments recorded, not every tremor that occurred, and recent events can be revised as seismologists refine the catalog.

Source: USGS ComCat, verify with USGS → · See our methodology for the full pipeline.

Disclaimer: PlainQuake is an informational reference for informational purposes only, not an emergency or early-warning service, and not professional engineering or safety advice. For official alerts and guidance, consult the USGS and your local emergency authorities. See our full disclaimer.