Effects of Typhoons Urduja and Vinta in Biliran and Lanao del Norte

In December last year, two typhoons hit the Philippines: Urduja (international: Kai-Tak) and Vinta (international: Tembin). Both weren't particularly strong typhoons (at least from what we experience in the Philippines); Urduja peaked at Category 1 and Vinta as a Tropical Storm in the Saffir-Simpson Scale. What made the two typhoons deadly were the excessive rainfall... Continue Reading →

Advertisements

What are debris flows?

Last time, I mentioned that what hit Mocoa, Colombia were not floods or mudflows, but debris flows. But what exactly is a "debris flow?" This term isn't very well-known, at least in popular usage. Indeed, numerous reports describe the Mocoa tragedy as caused by either a mudflow, mudslide, or a landslide (which is technically correct,... Continue Reading →

Dangerous debris flows

A little over a month ago, heavy and sustained rainfall in Mocoa, Colombia triggered deadly landslides and debris flows, claiming more than 300 lives.¬†Post-event analysis by scientists from GFZ Potsdam¬†show that more than 600 landslides occurred within the watersheds next to town. The mixture of soil, rocks and debris from the landslides mixed with water... Continue Reading →

Powered by WordPress.com.

Up ↑