Via @davely on Twitter.
Amazing video of 2011 magnitude 9.0 earthquake in Japan
Via @davely on Twitter.
Available Resources
Video: DeWind One-Pass Trenching Animation of a Collection Trench
,[Editor] From their video description: [/Editor]DeWind One-Pass Trenchers can install complete DEEP Groundwater Collection Trench Systems in a Single Pass Under the Groundwater Table! No Open Excavations-No Dewatering – No Pumping- No Treating discharge water- […]
Geologic Hazards
What Would a Large Earthquake Do to Downtown L.A.?
From the USGS Newsroom:
USGS scientist Ken Hudnut fills us in on how science created the theoretical magnitude 7.8 earthquake behind the Great Southern California ShakeOut—the largest earthquake preparedness drill in U.S. history, coming Nov. 13—and what such an earthquake would do to downtown Los Angeles.
Seems like they did it right wiith this study. They had multiple teams independenlty come up with the ground shaking model, then had different structural engineers who are experts in seismic design of large buildings review the tall buildings in the L.A. area for the design earthquake. They say that buildings would likely come down in the 7.8 magnitude event. Click through to watch the video interview from the USGS.
Project Related
Video: Accelerated bridge construction Iowa DOT project
This video for the Massena Lateral Bridge Slide from Iowa DOT shows a very nice 3D rendering of the entire accelerated bridge construction process. They are using a lateral slide method to construct the bridge […]