Category Archives: landslides

Earthquake/Landslide/Tsunami Report: Donggala Earthquake, Central Sulawesi: UPDATE #1

We continue to learn more each day as people collect additional information. Here is my initial Earthquake Report for this M 7.5 Donggala Earthquake. In short, there was an earthquake with magnitude M = 7.5 on 2018.09.28. Minutes after the … Continue reading

Posted in College Redwoods, earthquake, education, geology, Indonesia, landslides, pacific, plate tectonics, strike-slip, tsunami

Large Aftershock in Nepal: 2nd Update

Well, there have been a few more aftershocks over night… Here is my first post about these aftershocks (I provide more links to the USGS web sites). Plus, the USGS has inverted the seismic data to estimate a fault plane … Continue reading

Posted in asia, Chemeketa Community College, collision, education, geology, HSU, landslides, plate tectonics

Large Aftershock in Nepal

We just had a large aftershock to the east of the mainshock. The PAGER estimates are currently suggesting that there will be additional casualties. Regions that were destabilized (hillsides, buildings, etc.) from the main shock, but were not in areas … Continue reading

Posted in asia, Chemeketa Community College, collision, education, geology, HSU, landslides, plate tectonics

Update Commentary on the OSO Slide: Scott Burns

Scott Burns, emeritus at Portland State and a student of Peter Birkeland, wrote an excellent article about the OSO Slide. I made a few animations and armchair interpretations about this slide shortly after it happened (here). Scott discusses the geologic … Continue reading

Posted in College Redwoods, earthquake, education, geology, landslides