Every countryAntigua and Barbuda
Antigua and Barbuda earthquakes in 1991
5 earthquakes of magnitude 4.5 or more were located in Antigua and Barbuda in 1991. The largest: M5.3 23 km ENE of Codrington, Antigua and Barbuda, Dec 30, 1991.
From the USGS catalog. Times are local to each quake.
Map
Where every quake of 1991 was located in Antigua and Barbuda. Select one for its page.
Every quake of 1991
Magnitude 4.5 and up, newest first.
- 5.323 km ENE of Codrington, Antigua and Barbuda · 47 km deep
- 4.792 km NNE of Codrington, Antigua and Barbuda · 13 km deep
- 4.8164 km NNE of Codrington, Antigua and Barbuda · 28 km deep
- 4.920 km NE of Codrington, Antigua and Barbuda · 43 km deep
- 5.322 km ENE of Codrington, Antigua and Barbuda · 42 km deep
Month by month
Counted by UTC date, which is how the catalog files them.
| Month | Quakes | Largest | Where |
|---|---|---|---|
| January 1991 | 0 | ||
| February 1991 | 2 | 5.3 | 22 km ENE of Codrington, Antigua and Barbuda |
| March 1991 | 0 | ||
| April 1991 | 0 | ||
| May 1991 | 1 | 4.8 | 164 km NNE of Codrington, Antigua and Barbuda |
| June 1991 | 0 | ||
| July 1991 | 0 | ||
| August 1991 | 0 | ||
| September 1991 | 0 | ||
| October 1991 | 0 | ||
| November 1991 | 0 | ||
| December 1991 | 2 | 5.3 | 23 km ENE of Codrington, Antigua and Barbuda |
What this means
The catalog is only as complete as the instruments of the time. Worldwide coverage of magnitude 5 and up dates from the 1960s, and of 4.5 from the 1990s; earlier years hold the large quakes and the ones near a station, so a low count in an early year means fewer instruments, not a quiet earth.
By year
Every year the USGS catalog covers.
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- 1990s1990199119921993199419951996199719981999
- 1980s1980198119821983198419851986198719881989
- 1970s1970197119721973197419751976197719781979
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- 1910s1910191119121913191419151916191719181919
- 1900s1900190119021903190419051906190719081909
Nearby
Sources
Earthquakes, magnitudes, depths, shaking estimates and felt reports from the U.S. Geological Survey Earthquake Hazards Program, read from its live feeds and its catalog back to 1900. Tsunami messages from NOAA’s tsunami warning centers.