Lucia Perez Diaz is a Postdoctoral Researcher at Fault Dynamics Research Group, Royal Holloway. The views expressed in this commentary are solely those of the writers. CNN is showcasing the work of The Conversation, a collaboration between journalists and academics to provide news analysis and commentary. The content is produced solely by The Conversation.
(CNN)A large crack, stretching several kilometres, made a sudden appearance recently in south-western Kenya.