The microplate could be focusing seismic energy in a straight line in a region under the Alaska Range of mountains, potentially contributing to large earthquakes and the development of small volcanoes in the area.
"Being able to identify where the Yakutat microplate is in the subsurface has helped us understand the tectonics," said Meghan Miller, the study's first author and a seismologist at the Australian National University.
Study co-author Meghan Miller deploys a temporary seismic station. The data from these stations revealed a hidden microplate's location. (Image credit: Sarah Roeske.)Related stories
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The researchers suspect that the leading edge of the plate is focusing seismic energy toward the surface. The plate's location also aligns with the initiation point of the 2002 Denali quake, which started on a nearby fault, Miller told Live Science, but exploring that idea further will require computational modeling.
"What we were postulating is that the edge of the Yakutat plate is influencing all these different types of processes," Miller said.
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