Magnitude 7.0 earthquake in Aleutians
The magnitude 7.0 earthquake that struck just 58 miles east/southeast of Adak, Alaska on Aug. 30, 2013 was a whopper, but not unusual for the region. The earthquake occurred at 8:25 a.m. that morning at the interface of the Pacific and North American plates, a region called the Aleutian Arc.
The Aleutian Arc is home to more than 20 earthquakes of magnitude 6.5 or larger within the last century.
Pavlof Volcano stills
The Alaska Volcano Observatory issued a Volcanic Activity Notice yesterday, indicating the Current Volcano Alert Level has changed to NORMAL for Pavlof Volcano:
2013 CIG-QUEST-IRIS Seismic Imaging of Structure and Source conference takes place in Fairbanks
More than 80 participants have converged at the Geophysical Institute at the University of Alaska Fairbanks for a conference dedicated to seismic imaging. Participants will take in a number of presentations, conduct a poster session, tour the Alaska Earthquake Information Center and create simulations in the Arctic Region Supercomputing Center and more as part of the three-day conference.
Alaska Science Forum: New wave of seismic modeling: using supercomputers to study earthquakes
Bymolly [dot] rettig [at] gi [dot] alaska [dot] edu ( Molly Rettig)
Red and blue waves triggered by a magnitude 4.6 earthquake rippled outward from the Anchorage area and fizzled out after 45 seconds. Except in Cook Inlet basin, where the waves were trapped for another half-minute, bouncing back and forth, up and down, within the 7.5-kilometer-thick sedimentary basin.
New Wave of seismic modeling: using supercomputers to study earthquakes
Geologists examine large cracks in the ground formed by the 2002 magnitude 7.9 Denali fault earthquake, which was strongly felt in Fairbanks and Anchorage.
Photo Courtesy Peter Haeussler, USGS.
Red and blue waves triggered by a magnitude 4.6 earthquake rippled outward from the Anchorage area and fizzled out after 45 seconds. Except in Cook Inlet basin, where the waves were trapped for another half-minute, bouncing back and forth, up and down, within the 7.5-kilometer-thick sedimentary basin.
“It’s like throwing a rock in the pond. Except water is a homogeneous material. In the solid earth you have basins and mountains and other variations,” said Carl Tape, a seismologist and assistant professor at the University of Alaska Fairbanks.
Science Potpourri celebrates 20 years of fun and science
Lester’s Forbidden Experiment. Screaming Gummy Bears. Blowtorch in a Beaker. The three are among a host of activities on the roster for the University of Alaska Fairbanks’ 20th annual Science Potpourri Saturday, April 13 from noon to 3 p.m. The College of Natural Science and Mathematics hosts the free event, which will be in the Reichardt Building on the UAF campus.
Alaska Science Forum: Southeast residents show savvy after large earthquake
By nrozell [at] gi [dot] alaska [dot] edu (Ned Rozell
)
Around midnight on January 4, Kathleen Brandt felt an earthquake at her home in Sitka. As framed pictures trembled and then fell from the walls, she started counting.
Southeast residents show savvy after large earthquake
Natalia Ruppert spoke to about 170 people in both Sitka, pictured here, and Craig. After her presentations, a few people shared their earthquake experiences and told of moving to high ground to escape a possible tsunami.
Photo by Ned Rozell.
Around midnight on January 4, Kathleen Brandt felt an earthquake at her home in Sitka. As framed pictures trembled and then fell from the walls, she started counting.
