Geologic Hazards
One Year Since the Tracy Arm Landslide Tsunami
One year after the Tracy Arm landslide generated a tsunami in Southeast Alaska, NOAA scientists are sharing what the event revealed about monitoring coastal geohazards. […]
tsunami
Failures
Vajont Dam Disaster – 60 Years Later
Today marks the 60th anniversary of the Vajont Dam disaster – a tragic event that serves as a stark reminder of the profound interplay between geology, engineering, and the forces of nature. On the fateful […]
Geologic Hazards
Tsunami Impacts from a Seattle Fault Earthquake
The Washington Department of Natural Resources (DNR) has released a new study regarding the tsunami impacts that would affect Metro Seattle in the event of an earthquake on the Seattle Fault. The last known earthquake […]
Geologic Hazards
Bute Inlet Landslide and Tsunami in BC
A massive November 2020 landslide and glacial lake outburst near Bute Inlet in BC created a seismic signal equivalent to a 4.9 magnitude earthquake! On November 28, 2020, at about 6 a.m., approximately 18.5 million […]
Geologic Hazards
World’s Tallest Tsunami in Lituya Bay, Alaska – 1958
The Lituya Bay Tsunami hit the Gulf of Alaska more than 60 years ago. On July 9, 1958, an earthquake estimated at magnitude 7.7-8.3 triggered a massive landslide or rockslide here, estimated at 40 million […]
Geologic Hazards
New Landslide and Tsunami Fears at Anak Krakatoa in Indonesia
Fears of another landslide and possible tsunami are mounting for the Anak Krakatoa volcano in the Sunda Strait, Indonesia. Scientists with Indonesia’s Meteorology, Climatology and Geophysics Agency (BMKG) have discovered new cracks that could be […]
Geologic Hazards
Deadly Indonesian Tsunami was Triggered by Landslide, Study Suggests
Until recently, scientists were puzzled why an earthquake of only 7.5 magnitude caused a devastating tsunami that killed over 2,000 people on the island of Sulawesi in Indonesia in September of 2018. The earthquake didn’t […]
Available Resources
The Earthquake That Will Devastate Seattle
This is a fantastic article by Kathryn Schulz for New Yorker Magazine on the seismic and tsunami hazards associated with the Cascadia Subduction Zone in the Pacific Northwest. Ms. Schulz paints a very vivid picture […]
Geologic Hazards
Huge Undersea Landslide Caused Tsunami in Great Britain, Norway
The largest known undersea landslide occurred over 8,000 years ago off the coast of Norway. The volume of material that moved is mind-blowing, over 4.6 X 1012 cubic yards or 850 cubic miles! Known as […]
Geologic Hazards
Alaskan megathrust fault more active under Kodiak
The 1964 Alaska Earthquake was 9.2 in magnitude and caused dramatic destruction and dramatic examples of surface rupture, subsidence, and liquefaction. New paleoseismic evidence points to a previously unknown earthquake that happened on the same […]