Download Characteristics of Earthquakes Located In the Magadi Area, Kenya

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Transcript
Characteristics of Earthquakes Located In the Magadi Area, Kenya
Magadi area is located in the southern part of the Kenyan rift, an active continental rift that is part
of the East African Rift system (EARS). Local seismic activity monitored previously around Lake
Magadi revealed an earthquake cluster caused by swarm activity in the rift center at shallow depths,
which was probably triggered by magma movements. The Magadi area is classified into three
formations, namely; Precambrian metamorphic rocks, Plio-Pleistocene volcanics, the Holocene to
Recent Lake and fluvial sediments.
Earthquake swarms have been noted to occur in the area suggesting that there are forces at play
causing these earthquakes. Tectonism is known to be a major cause of earthquakes. The Kenya rift
is now known to be expanding due to the rifting process as such seismic stations register seismic
events. Local seismic activity monitored previously around Lake Magadi revealed an earthquake
cluster caused by swarm activity in the rift centre at shallow depths, which was possibly triggered
by magmatic movement in the earth’s crust.
Understanding of the events in terms of origin and type of the earthquakes is an important aspect
in the getting to understand the geological process taking place in the Magadi area.