Saint Helena earthquakes in 1976
14 earthquakes of magnitude 4.5 or more were located in Saint Helena in 1976. The largest: M5.8 220 km NW of Edinburgh of the Seven Seas, Saint Helena, Aug 4, 1976.
From the USGS catalog. Times are local to each quake.
Map
Where every quake of 1976 was located in Saint Helena. Select one for its page.
Every quake of 1976
Magnitude 4.5 and up, newest first.
- 4.9north of Ascension Island · 33 km deep
- 4.8Ascension Island region · 33 km deep
- 5.0Ascension Island region · 46 km deep
- 5.1122 km ENE of Georgetown, Saint Helena · 33 km deep
- 4.9129 km ENE of Georgetown, Saint Helena · 33 km deep
- 5.1151 km ENE of Georgetown, Saint Helena · 33 km deep
- 4.668 km ENE of Georgetown, Saint Helena · 33 km deep
- 5.2north of Ascension Island · 25 km deep
- 4.9north of Ascension Island · 42 km deep
- 4.8Ascension Island region · 33 km deep
- 5.8220 km NW of Edinburgh of the Seven Seas, Saint Helena · 33 km deep
- 5.0Tristan da Cunha region · 33 km deep
- 5.3242 km ENE of Georgetown, Saint Helena · 33 km deep
- 5.6north of Ascension Island · 33 km deep
Month by month
Counted by UTC date, which is how the catalog files them.
| Month | Quakes | Largest | Where |
|---|---|---|---|
| January 1976 | 0 | ||
| February 1976 | 0 | ||
| March 1976 | 0 | ||
| April 1976 | 0 | ||
| May 1976 | 0 | ||
| June 1976 | 1 | 5.6 | north of Ascension Island |
| July 1976 | 1 | 5.3 | 242 km ENE of Georgetown, Saint Helena |
| August 1976 | 5 | 5.8 | 220 km NW of Edinburgh of the Seven Seas, Saint Helena |
| September 1976 | 0 | ||
| October 1976 | 5 | 5.1 | 122 km ENE of Georgetown, Saint Helena |
| November 1976 | 1 | 4.8 | Ascension Island region |
| December 1976 | 1 | 4.9 | north of Ascension Island |
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.
- 2020s2020202120222023202420252026
- 2010s2010201120122013201420152016201720182019
- 2000s2000200120022003200420052006200720082009
- 1990s1990199119921993199419951996199719981999
- 1980s1980198119821983198419851986198719881989
- 1970s1970197119721973197419751976197719781979
- 1960s1960196119621963196419651966196719681969
- 1950s1950195119521953195419551956195719581959
- 1940s1940194119421943194419451946194719481949
- 1930s1930193119321933193419351936193719381939
- 1920s1920192119221923192419251926192719281929
- 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.