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Accra experiences moderate earth tremor of magnitude 4.0

BY: Enoch Darfah Frimpong

Ghana's capital, Accra experiences moderate earth tremor of magnitude 4.0 on Monday morning.

A moderate earth tremor was felt in most parts of Accra Monday morning (December 12, 2022).

The epicenter was located in the western part of Accra, 10 km from Gbawe.

The phenomenon which took place at 11:53 am local time (December 12, 2022), occurred three times in the space of about five hours.

The first was experienced around 6:53 am, also in the western part of Accra, the second around 10am at same places and the third occurred at 11:53am, 10 km from Gbawe.

According to the Android Earthquake Alerts System, the seismic movement reached magnitude 4.0 which makes it one of the strongest tremor in Ghana.

When Graphic Online contacted the Ghana Geological Survey Authority (GSSA) at midday for official information on the tremor, it was explained that a team of experts have been dispatched to collect information.

The Director of the GGSA, Isaac Nwinbelle told Graphic Online's Timothy Ngnenbe that the team of experts have been deployed to Weija, to the earth quake monitoring station located at Weija to collect data on the latest tremor.

Weija has experienced perennial earth tremors.

Some parts of Accra including the Graphic Road enclave also experienced the tremor.

In the Central Business District (CBD) of Accra, where a lot of trading activities occur especially, around the Bank of Ghana area, some people were seen attempting to move away from buildings into safety, according to some eyewitnesses. 

Below is a copy of a statement later issued by GGSA on the tremor

PRESS RELEASE - EARTH TREMORS

On Monday 12th December 2022, three (3) earth tremor events ocurred in parts of the Greater Accra Region.

The foreshock occurred at 11:49am with a magnitude of 2.1.

The main event occurred at 11:53am with a magnitude of 3.5.

The aftershock occurred at 11:58am with a magnitude of 1.8 on the Richter scale

The epicenter is located between Wiaboman and Bojo beach and is about 575m into the sea, the GGSA statement said.

The recorded magnitudes are indicative of the extent of the tremor.

The magnitude of even the main shock is a minor tremor and so it is not expected to cause damage, the GGSA added.

The tremors were highly felt in areas like Dansoman, Mataheko, Weija, and slightly felt in areas like Legon, Amasaman and Accra Central which are far away from the epicenter.

These are natural occurrences and therefore difficult to predict, the GGSA said.

However, education and sensitisation of the public on awareness and response during such events are key.

The public is therefore urged to remain calm and go about their normal businesses, it added.

Earthquake data
Date Time (GMT) Epicentre
January 2006 Accra
26 September 2007 15:00 385.2 kilometres from Takoradi
9 December 2018 7:50 Weija and Gbawe
13 January 2019 Accra

Date Time (GMT) Epicentre Depth Notes
1862 6.5 This earthquake was felt in Togo and Benin as well. It caused much damage and killed three people.
1906 Ho Much damage was recorded.
22 June 1939 Accra 6.6 This earthquake killed 17 to 22 people and injured 133 
8 January 1997 Accra 3.8
15 February 1997 Accra 4.1
6 March 1997 15:16 6.2 kilometres from Gbawe 4.8 10 km
May 2003 Accra 3.8
January 2006 Accra 3.7
26 September 2007 15:00 385.2 kilometres from Takoradi 5.2 33 km
9 December 2018 7:50 Weija and Gbawe 2.6
13 January 2019 Accra 2.6
24 June 2020 22:53 Accra 4.0 10 km It was felt in Gbawe, McCarthy Hill, Kaneshie, Tesano, Dansoman, Dunkanaa, Lapaz, Achimota, Santa Maria, Adenta, Weija, Madina, Kwabenya, East Legon, Nsawam, Koforidua, Swedru, Dodowa, Tema among other areas.

 

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