Asset Details
Do you wish to reserve the book?
Pattern of Inner‐Core Differential Rotation From Long‐Term Earthquake Sequences and USArray Network
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
Pattern of Inner‐Core Differential Rotation From Long‐Term Earthquake Sequences and USArray Network
Do you wish to request the book?
Pattern of Inner‐Core Differential Rotation From Long‐Term Earthquake Sequences and USArray Network
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
Pattern of Inner‐Core Differential Rotation From Long‐Term Earthquake Sequences and USArray Network
2026
Overview
How the differential rotation of the Earth's inner core (IC) has changed over time provides insights into the dynamics of the Earth's interior. Analyses of repeating earthquakes (doublets) have yielded different models. Here we present an event‐based investigation using individual events from long‐term earthquake sequences, which improves temporal coverage over doublet‐based approaches and provides spatial resolution for inferring the rotation rate. Results from two pathways, South Sandwich Islands to Alaska (1982–2024) and Kuril Islands to Argentina (1994–2024), reveal a consistent pattern that the IC successively rotated faster than the mantle by about 0.10°/yr $0.10{}^{\\circ}/\\text{yr}$ from the early 1980s and decelerated to a near‐zero rate around 2000, perhaps slower than the mantle after about 2010. We also provide a new way to calibrate spatial structure and constrain the average rotation rate with improved accuracy. The results are consistent with the multidecadal IC oscillation model, but do not support shorter‐term oscillations or bursts.
Publisher
John Wiley & Sons, Inc
Subject
