Quakes-The official story

July 19, 2007 at 2:25 pm Leave a comment

now with all the hub-hub about the tremors, we thought we’d research on the official story. This is the official story according to the US Geological Survey – apparently the ‘mama na baba’ on quakes info.

Small globe showing earthquake Small map showing earthquake

Felt Reports

Felt (V) at Moshi and (IV) at Arusha. Felt at Kingori, Longido, Mwanza, Ngara, Tanga and Usa River. Felt (IV) at Kijabe, Mombasa, Nairobi, Naivasha and Voi, Kenya. Also felt at Kisumu and Namanga, Kenya; Kigali, Rwanda; Kampala, Uganda.

Tectonic Summary

The sequence of earthquakes that has been occurring in northern Tanzania since July 14, 2007, represents a seismic phenomenon known as a seismic “swarm”– an episode of high earthquake activity in which the largest earthquake does not occur at the beginning of the episode and in which the largest earthquake is not substantially larger than other earthquakes of the episode. Worldwide, earthquake swarm activity is commonly associated with tectonic regions in which both strike-slip fault and normal faulting occur and where magmatic activity occurs at shallow depths in the earth?s crust.

The earthquake swarm is situated close to the Ol Doinyo Lengai volcano, an active volcano in the Gregory Rift of the East African rift system. Although volcanic eruptions are often preceded and accompanied by earthquake swarms, most earthquake swarms are not associated with volcanic eruptions. Information recorded at the U. S. Geological Survey/National Earthquake Information Center is not sufficient to determine if the current Tanzania swarm activity reflects a geologic process that might lead to a change in the eruptive behavior of Ol Doinyo Lengai.

2007exbe_ciim.gif

for more on this and a wealth of information go here

(information and pics from US Geological Survey)

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Entry filed under: Misc Rantings.

Kenya Re IPO pics

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