"​​This is larger than anything in the past decade in Alaska," Alaska Earthquake Center Director Michael West said. "Sunday's landslide occurred at about 5:30 a.m. at the head of Tracy Arm, where the South Sawyer Glacier reaches the water. "We now have the ability to quickly analyze and report the size, location and style of landslides," West said. "Sunday's landslide occurred outside of the center's landslide detection study area, but the recently developed system of detection and characterization was used to quickly provide information about the event. "Once the dust settles, we'll look at options for incorporating Southeast Alaska into our detection coverage."