Date & time: Saturday, 22 August 2020 10:21 UTC
Local time at epicenter: 2020-08-22 10:21:29 UTC
Magnitude: 5.4
Depth: 10.0 km
Epicenter latitude / longitude: 7.1602°S / 12.9828°W
(St. Helena)
Nearest volcano: Ascensión (176 km)
Primary data source: USGS
Estimated released energy: 7.9 x 1012 joules (2.21 gigawatt hours, equivalent to 1898 tons of TNT or 0.1 atomic bombs!) [learn more]
Local time at epicenter: 2020-08-22 10:21:29 UTC
Magnitude: 5.4
Depth: 10.0 km
Epicenter latitude / longitude: 7.1602°S / 12.9828°W
(St. Helena)Nearest volcano: Ascensión (176 km)
Primary data source: USGS
Estimated released energy: 7.9 x 1012 joules (2.21 gigawatt hours, equivalent to 1898 tons of TNT or 0.1 atomic bombs!) [learn more]
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Also if you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable also to earthquake science and earthquake hazard analysis and mitigation efforts. You can use your device location or the map to indicate where you were during the earthquake. Thank you!
Data for the same earthquake reported by other agencies
| Time | Mag. / Depth | Location | Source | |
| Sat, 22 Aug 2020 | ||||
| Sat, 22 Aug 10:21 UTC | M 5.5 / 10 km | Ascension Island Region (St. Helena) | GFZ | |
| Sat, 22 Aug 10:21 UTC | M 4.9 / 10 km | Ascension Island Region (St. Helena) | BMKG | |
"I felt it" reports
Aftershocks of the 5.4 quake: 179 km ENE of Georgetown, Saint Helena (St. Helena), 22 Aug 2020 10h21
Show info about this
List of recorded aftershocks, latest first (0 quakes so far, frequently updated):So far, no aftershocks have been registered.
Map of aftershocks
Significant earlier earthquakes in the same area since 1900
Moderate mag. 5.4 earthquake - 179 km ENE of Georgetown, Saint Helena (St. Helena) on Saturday, 22 August 2020Map of earlier quakes
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August 22, 2020 at 03:21AM
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Earthquake info: M5.4 earthquake on Saturday, 22 August 2020 10:21 UTC / 178 km ENE of Georgetown, Saint Helena (St. Helena) - - VolcanoDiscovery
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