Karl Wegmann

HazBlog-007: Landslide generated tsunami – the 2007 Chehalis Lake, B.C. Canada Example

Glacial trough lakes and fjords – deep, blue, beautiful, inviting. Several weeks ago, while developing materials for a new course on geology through the movies, we watched the 2015 Norwegian disaster/action-thriller The Wave, in which a rockfall high above the Geiranger Fjord creates a displacement wave (landslide-generated tsunami) up to 80 m high that destroysContinue reading “HazBlog-007: Landslide generated tsunami – the 2007 Chehalis Lake, B.C. Canada Example”

HazBlog-003: Mapping lava flows with HazMapper – the 2002 eruption of Mount Nyiragongo in the Democratic Republic of the Congo

In this post we are going back in time 18 years to highlight the ability of HazMapper to identify lava flow inundation extents. Mount Nyiragongo, one of Africa’s most active stratovolcanoes and part of Virunga National Park, is positioned 20 km north of the city of Goma. In 2002, between January 17 and February 3,Continue reading “HazBlog-003: Mapping lava flows with HazMapper – the 2002 eruption of Mount Nyiragongo in the Democratic Republic of the Congo”