One morning as I sat in my chair typing away, trying to meet my writing deadline, I felt myself drifting away from my desk, as if someone was pulling my chair from behind. When I looked behind me, there was nobody and, for a moment, I was a little creeped out…until I remembered the news on the radio that morning. There was some volcanic activity near the Oldoiyo Lengai Mountain area near Arusha in Northern Tanzania and Nairobians were to expect some tremors.