Moderate mag. 4.8 earthquake - 41 km south of Lambarene, Moyen-Ogooué, Gabon, on 27 Apr 1:40 am (GMT +1) -
Moderate magnitude 4.8 earthquake at 10 km depth
27 Apr 00:53 UTC: First to report: GFZ after 13 minutes.
27 Apr 07:50: Epicenter location corrected by 12 km (7.2 mi) towards SSW.
Update Tue, 27 Apr 2021, 00:57Magnitude 4.8 earthquake strikes near Lambarene, Moyen-Ogooué, Gabon
4.8 quake 27 Apr 1:40 am (GMT +1)
Just 16 minutes ago, a 4.8-magnitude earthquake struck near Lambarene, Moyen-Ogooué, Gabon. The tremor was recorded early morning on Tuesday 27 April 2021 at 1:40 am local time, at a shallow depth of 10 km below the surface.
The event was filed by the German Research Centre for Geosciences (GFZ), the first seismological agency to report it.
Our monitoring service identified a second report from the European-Mediterranean Seismological Centre (EMSC) which listed the quake at magnitude 4.8 as well.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in Lambarene (pop. 20,700) located 29 km from the epicenter, and Fougamou (pop. 5,600) 51 km away.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Ndjolé (pop. 5,100) 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
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Date & time: 27 Apr 2021 00:40:56 UTC -
Local time at epicenter:
27 Apr 1:40 am (GMT +1)
Depth: 10.0 km
Epicenter latitude / longitude: 1.06°S / 10.17°E
Nearby towns and cities:41 km (25 mi) S of Lambarene
(pop: 20,700) --> See nearby quakes!49 km (31 mi) WNW of Fougamou (Ngouni)
(pop: 5,650) --> See nearby quakes!118 km (74 mi) SW of Ndjolé
(pop: 5,100) --> See nearby quakes!133 km (83 mi) NW of Mouila (Ngouni)
(pop: 22,500) --> See nearby quakes!159 km (99 mi) ESE of Port-Gentil (Ogooué-Maritime)
(pop: 109,200) --> See nearby quakes!180 km (112 mi) SSE of Libreville (Estuaire)
(pop: 578,200) --> See nearby quakes!227 km (141 mi) NNW of Tchibanga (Nyanga)
(pop: 19,400) --> See nearby quakes!255 km (159 mi) W of Koulamoutou (Ogooué-Lolo)
(pop: 16,200) --> See nearby quakes!335 km (208 mi) SSW of Oyem (Woleu-Ntem)
(pop: 30,900) --> See nearby quakes!413 km (257 mi) ESE of Santo Tome (São Tomé Island, São Tomé & Príncipe)
(pop: 53,300) --> See nearby quakes!
Weather at epicenter at time of quake:
Overcast Clouds 24.1°C
(75 F), humidity: 96%, wind: 1 m/s (2 kts) from SSW
Primary data source: GFZ
(German Research Centre for Geosciences)
Estimated released energy: 1 x 1012
joules (278 megawatt hours, equivalent to 239 tons of TNT) More info
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.
|4.7||10 km||40 Km S of Lambaréné, Gabon||USGS|
User reports for this quake (3)
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Libreville city Owendo south of Libreville by sea (170.8 km NNW of epicenter) [Map] / not felt : I live in Owendo, south of Libreville, about 200km from Lambarene, I did not feel any sign but I called my field partners in the center of Lambarene. They confirmed the earthquake and think this the sixth incident in one one month. They wonder is sismic activities by oil company in the area can cause this earthquake? | One user found this interesting.
Lambaréné, ancien hôpital (40.1 km N of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 1-2 s : Allongé et légèrement endormi sur mon lit, j'ai ressenti mon lit et le sol trembler | One user found this interesting.
Lambaréné, dans la zone du lac Ezanga sur le cha / Weak shaking (MMI III) / complex rolling (tilting in multiple directions) / 5-10 s : J'ai ressenti une vibration dans tous les sens etant sur le lit quand cela s'est produit. le lit a bougé dans toutes les direction et l'onde de s'est éloignée au four et a mesure suivant la durée.
Earlier earthquakes in the same area
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