Download Arus-Bogoria geothermal prospect encompasses several features of

Arus-Bogoria geothermal prospect encompasses several features of geological significance that
are indicators of possible geothermal potential. These include surface manifestations, such as
fumaroles, steam jets, mud pools, hot springs, spouting geysers, and high rate of micro-seismic
activity of about 500 earthquakes recorded within a period of three months in comparison to
other geothermal fields and prospects along the Kenya Rift Valley (KRV). A comparison of the
results of gravity surveys undertaken between 2005 and 2006 for geothermal resource evaluation
of Arus and Lake Bogoria geothermal prospects, to results of micro-seismic monitoring
undertaken in 1985 during the Kenya Rift International Seismic (KRISP 85) Project was
undertaken to map the existence of heat source(s). The results indicate that the heat source is due
to a series of north-south trending dyke injections occurring at depths of ~3 – 6 km in the vicinity
of the Arus steam jets. Most of the seismic activity is probably associated with tectonic activity
due to reactivation of north-south trending faults.