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Interactive map of latest earthquakes and active volcanoes in the world

Moderate mag. 5.9 earthquake - Ascension Island Region (St. Helena) on Saturday, 22 August 2020

Moderate mag. 5.9 earthquake  - Ascension Island Region (St. Helena) on Saturday, 22 August 2020
Aug 22 09:18: Magnitude recalculated from 5.4 to 5.8.
Aug 22 13:02: Magnitude recalculated from 5.8 to 5.9.
Date & time: Saturday, 22 August 2020 08:38 UTC
Magnitude: 5.9
Depth: 10.0 km
Epicenter latitude / longitude: 6.96°S / 12.56°W (St. Helena)
Nearest volcano: Ascensión (210 km / 130 mi)
Primary data source: GFZ
Estimated released energy: 4.5 x 1013 joules (12.4 gigawatt hours, equivalent to 10676 tons of TNT or 0.7 atomic bombs!) [learn more]
If you felt this quake (or if you were near the epicenter), please share your experience and submit a short "I felt it" report! Other users would love to hear about it!
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 different agencies

Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
TimeMag. / DepthLocationSource
Sat, 22 Aug 08:38 UTCM 5.9 / 10 kmAscension Island Region (St. Helena)GFZ
Sat, 22 Aug 08:38 UTCM 5.9 / 10 kmAscension Island Region (St. Helena)EMSC
Sat, 22 Aug 08:38 UTCM 5.8 / 10 kmAscension Island Region (St. Helena)GeoAu
Sat, 22 Aug 08:38 UTCM 6.0 / 10 km212 km ENE of Georgetown, Saint Helena (St. Helena)USGS

User experience reports for this quake

339.2 km SSE of epicenter [Map] / not felt
231 km WSW of epicenter [Map] / Light shaking (MMI IV)

Aftershocks of the 5.9 quake: Ascension Island Region (St. Helena), 22 Aug 2020 08h38

Show info about this
List of recorded aftershocks, latest first (1 quakes):
  • 22 Aug 2020 10:21 UTC
    | M 5.4 |
    10 km (6.2 mi) depth
    |
    52 km (32 mi) distance
    | USGS | Details

Map of aftershocks

Significant earlier earthquakes in the same area since 1900

Moderate mag. 5.9 earthquake - Ascension Island Region (St. Helena) on Saturday, 22 August 2020

Map of earlier quakes

 

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