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Ascension island Georgetown / not felt
Georgetown ascension island / not felt
Moderate mag. 4.9 earthquake - South Atlantic Ocean, 104 km east of Georgetown, Ascension, St. Helena, on Sunday, Jun 12, 2022 at 11:44 am (GMT +0) -
Moderate magnitude 4.9 earthquake at 10 km depth
12 Jun 11:56 UTC: First to report: GFZ after 12 minutes.
12 Jun 12:09: Now using data updates from USGS
12 Jun 12:09: Now using data updates from USGS
Update Sun, 12 Jun 2022, 12:00
Magnitude 4.6 earthquake strikes near Georgetown, Ascension, St. Helena4.6 quake 12 Jun 11:44 am (GMT +0)
A magnitude 4.6 earthquake near Georgetown, Ascension, St. Helena, was reported only 16 minutes ago by the German Research Centre for Geosciences (GFZ), considered one of the key international agencies that monitor seismic activity worldwide. The earthquake occurred at a shallow depth of 10 km beneath the epicenter in the morning on Sunday, June 12th, 2022, at 11:44 am local time. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
Our monitoring service identified a second report from the European-Mediterranean Seismological Centre (EMSC) which listed the quake at magnitude 4.6 as well. A third agency, the citizen-seismograph network of RaspberryShake, reported the same quake at magnitude 4.6.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Georgetown (pop. 540) located 107 km from the epicenter.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you're in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.
Our monitoring service identified a second report from the European-Mediterranean Seismological Centre (EMSC) which listed the quake at magnitude 4.6 as well. A third agency, the citizen-seismograph network of RaspberryShake, reported the same quake at magnitude 4.6.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Georgetown (pop. 540) located 107 km from the epicenter.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you're in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.
Earthquake data
Earthquake details
| Date & time | Jun 12, 2022 11:44:34 UTC - |
| Local time at epicenter | Sunday, Jun 12, 2022 at 11:44 am (GMT +0) |
| Status | Confirmed |
| Magnitude | 4.9 |
| Depth | 10.0 km |
| Epicenter latitude / longitude | 7.6629°S / 13.5029°W  (South Atlantic Ocean, St. Helena) |
| Antipode | 7.663°N / 166.497°E |
| Shaking intensity | Moderate shaking near epicenter |
| Felt | 0 reports |
| Primary data source | USGS (United States Geological Survey) |
| Nearest volcano | Ascensión (101 km / 63 mi) |
| Nearby towns and cities | 104 km (65 mi) ENE of Georgetown (pop: 538) | Show on map | Quakes nearby |
| Weather at epicenter at time of quake | Overcast Clouds  25°C (77 F), humidity: 68%, wind: 6 m/s (11 kts) from SE |
| Estimated seismic energy released | 1.4 x 1012 joules (392 megawatt hours, equivalent to 338 tons of TNT) | about seismic energy |
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.
| Mag. | Depth | Location | Source |
| 4.9 | 10 km | St. Helena: 104 Km ENE of Georgetown, Saint Helena | USGS |
| 4.9 | 10 km | St. Helena: Ascension Island Region | RaspberryShake |
| 4.9 | 10 km | St. Helena: ASCENSION ISLAND REGION | EMSC |
| 4.6 | 10 km | St. Helena: Ascension Island Region | GFZ |
User reports for this quake (2)
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Earlier earthquakes in the same area
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