Category Archives: Geology

After 43 years as a consulting hydrogeologist, it dawned on me that I had/have lost touch with geology. I had the extreme good fortune to have had both an excellent primary education in the Catholic schools and then in (of … Continue reading →

West coast geologic hazards are more numerous than east coast since on top of the threat of tsunami’s from the Pacific Ring, we have local earthquakes, landslides, liquefaction other seismic related hazards to deal with. But all of that aside … Continue reading →

The Cumbre Vieja volcano in the Canary Islands has received a lot of attention as a potential mega-tsunami generator. The premise is that it is a steep sided, active volcanic island with identified zones of weakness running approximately north-south that if she … Continue reading →

For anybody that remembers the old blog, you may remember that I had gone down the path of geologic extinctions. In the Phanerozoic (last 542 million years) there have been 5 great extinctions and many minor extinctions. We use the Phanerozoic because … Continue reading →