The International Information Center for Geotechnical Engineers

Monday, 03 December 2018 01:00

Alaska struck by a massive M 7.0 earthquake

The region of Anchorage, Alaska, was struck by a massive M 7.0 on November 30, 2018.

A new study shows that landslides, on slopes where ice retreats, can trigger massive tsunamis.

The international team of scientists just finished exploring the seabed of the Pacific Ocean, offshore Alaska and British Columbia, in an effort to understand better the Queen Charlotte-Fairweather fault system.

Bogoslof volcano is in an active eruption sequence since December 12, 2016. The series of short-duration explosive events - more than 27 of them up until now - has led to significant changes in the island's morphology.

Published in Geology Highlights
Thursday, 07 July 2016 12:21

Massive Landslide Found in Alaska (Video)

On Monday, a pilot in the Mountain Flying Service discovered the aftermath of a massive landslide near Glacier Bay, Alaska. The landslide occurred early in the Morning on June 28th, but there were no people around to witness the event.

The landslide occurred on the Lamplugh Glacier. The side of the mountain, measuring about 4,000 feet tall, collapsed, causing a large chunk of the mountain to collapse. It is estimated that 150 million tons of rock was released in the ensuing avalanche and the debris field extended over 6.5 miles.

The Glacier Bay area which is located in Southeast Alaska is known for large landslides and avalanches and there have been five in the area recently. Colin Stark, a professor at Columbia University, stated that due to the relative infrequency of events of this magnitude around the world, it is important to study them when they occur. By his estimate, the force of the landslide was approximately 280 giganewtons and their seismometers detected this landslide. In fact, it was so large that it registered a 2.9 on the Richter Scale.

This landslide was a complete slope failure, extending from crest down to the toe of the slope. Researchers say that a study needs to be performed in order to determine the cause of the recent rise in landslide activity in Southeast Alaska.

Source: Gizmodo

Monday, 27 July 2015 08:03

M6.9 near Nikolski, Alaska

6.9 magnitude earthquake shook the Aleutian Islands in Alaska, USA, according to the United States Geological Survey (USGS).

On March 27 1964 a 9.2 magnitude earthquake, the largest ever recorder in the U.S., shook Alaska for about 5minutes, and was followed by a 100ft high tsunami. The earthquake and tsunami combined, caused about $2.3billion in property loss and hit a death toll of 131. Today, on the 50th anniversary of the Great Alaska Earthquake, it is widely recognized that the particular earthquake event set the ground for great advancements in earth science. Read more on the research breakthroughs of the last 50years, followed by videos with technical information, and watch survivors describing their personal experience from that day.

Published in Other News

The $50 billion All-Alaskan Gas Pipeline project is going to transport natural gas from the North Slope down to the Kenai Peninsula, south of Anchorage. The project will include apart from the pipeline, the construction of harbors, roads, and state-of-the-art facilities to convert gas into liquid natural gas (LNG) for shipping to the Asian markets and the south. AAGP will have tremendously positive economic impacts on Alaskan citizens and cut America's trade deficit by up to $24 billion a year.

The Bureau of Land Management (BLM) has recently released a project to prevent the migration of contaminated mine tailings from the abandonned Red Devil Mine into the Red Devil Creek. The document describing the proposed course of action can be accessed by the public for review and comments.

The 54th Annual Meeting of the Association of Environmental & Engineering Geologists will take place in Alaska on 19-24 September, 2011

Published in News on Events