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Department of Earth Science

First local earthquake ever recorded in the history of Southern Sudan

The seismograph station installed by The Department of Earth Science, University of Bergen in Juba, Sudan early in 2009 is now collecting valuable information on local earthquakes in an area where the largest earthquake in Africa occurred in the junction between the Aswa shear zone and the East African Rift.

The seismograms from the first event ever recorded in Juba (20th March 2009...
The seismograms from the first event ever recorded in Juba (20th March 2009 at 12:18 (UTC/GMT) Mc=2.3). The three components of motion are shown in three separate graphs (upper: vertical component; middle: N-S component; lower: E-W component). The amplitude values are shown in counts, and the horizontal time axis is in seconds
Photo:
Kuvvet Atakan

The local seismograph station is installed within the framework of the NUFU/NUCOOP project which is coordinated by the Molecular Biology Department with contributions from all other departments within the Mathematics and Natural Sciences Faculty. The project aims to build up the competence in the region through establishing laboratory facilities in Juba University which was on exile for many years due to the civil war in the area until recently. The city of Juba is being rebuilt rapidly and proper constructions taking into account the earthquake hazard are urgently needed. In this sense, monitoring earthquakes is the first step towards a realistic assessment of the seismic hazard and risk. The recent earthquake in Haiti and its tragic consequences is a reminder for us on how important it is to set up mitigation measures and implement them before the earthquake.