They found that the seismic waves get amplified as they bounce back and forth off the sides and bottom of the sedimentary basin in the Minto Flats region. So people in the flats perceive the earthquakes as bigger than they actually are.
University of Alaska Fairbanks Ph. D. student Kyle Smith services a seismic sensor in 2018 on the bank of the Tanana River in the Minto Flats area.
Tape worked with graduate student Kyle Smith, placing 13 seismic monitors across the area over four years, from 2015 to 2019. In that time, they collected data from 48 local and regional earthquakes. The monitors, the first seismic stations installed in Minto Flats, are part of the Fault Locations and Alaska Tectonics from Seismicity project funded by the National Science Foundation.
University of Alaska Fairbanks Ph. D. student Kyle Smith installs a seismic sensor in 2015 in the Minto Flats area. The seismic monitors recorded earthquakes lasting longer on the gravel-filled basin than on harder ground. Both Tape and Smith noted the measured difference between the Nenana Ridge under the Parks Highway, and the flats below.
“The shaking is like 10 times less compared to if you were just downhill from that. So it’s pretty amazing how stark the difference is caused by whatever the underlying geology is,” Smith said.Tape said many UAF scientists are targeting the basin for research.
United States Latest News, United States Headlines
Similar News:You can also read news stories similar to this one that we have collected from other news sources.
Earthquakes last longer and feel stronger in parts of Interior Alaska, research findsEarthquakes in the Nenana Basin in Interior Alaska last longer and feel much stronger than quakes of comparable magnitude in other places. It’s all about the reverberation, UAF researchers find.
Read more »
Alaska House votes unanimously to support Willow oil project | Alaska Public Media
Read more »
Blinken pledges long-term aid for Turkey after devastating earthquakesU.S. Secretary of State Antony Blinken said during a trip to Turkey that Washington will help Turkey 'for as long as it takes' after earthquakes rocked the country two weeks ago, as authorities carried out widescale demolitions of damaged buildings.
Read more »
Two More Powerful Earthquakes Strike Turkey and Syria, With New Reports of Building CollapsesThere are new reports of collapsed buildings in Syria after another powerful earthquake struck Turkey’s Hatay province, which was devastated by a massive tremor two week ago.
Read more »
Turkey hit by new earthquakes, leaving 3 dead and more than 200 injuredA 6.4-magnitude earthquake shook southern Turkey, just two weeks after a massive earthquake and aftershocks devastated the region.
Read more »
How to help Turkey, Syria: Relief efforts ongoing after more earthquakes rock regionMonday’s heavy shaking exacerbates a humanitarian crisis that has forced more than 1 million people to seek refuge in temporary shelters amid the winter cold. Here's how to help.
Read more »