Take the Cook Inlet DAS Earthquake Challenge!
Description:
Our interactive poster illustrates some features of including real-time DAS seismic array data into regional and local earthquake monitoring using the increasingly novel approaches of HL (Human Learning) and NI (Natural Intelligence). Our goal is to stimulate thought and discussion about possible roles of DAS within regional networks...and to have some serious FUN! From July 2023 through January 2024 we interrogated two dark fiber arrays on the seafloor of southern Cook Inlet, Alaska producing time series of strain at seismic frequencies (i.e., seismograms). The interrogator is located in Homer on the Kenai Peninsula and the fibers cover about 170 linear km of seafloor in two fiber spans. The arrays record earthquake ground motions, a variety of ambient signals (“noise”), and vigorous energy emanating from movement in the seawater column. The channel and gauge lengths were 9.57m and 23.9m, respectively. The sampling frequency of earthquake data shown is 25 sps.
GAME SETUP: Virtual gathers of the >17,000 strain seismograms for 10 earthquakes are presented surrounding a map showing epicenters of 10 earthquakes (origin details from the Alaska Earthquake Information Center) each producing one of the displayed seismogram gathers. GAME ACTION: The player fills out and returns a "contest card", attempting to match each epicenter with its corresponding and correct data image. The viewer may ask the presenters/authors questions about the array(s), the interrogator, the fiber and its emplacement, details about acquisition, processing and the individual earthquake source parameters. However, questions about which earthquake source corresponds (or not) to which display figure are "out of bounds" SCORING: Each correct answer is worth 2 points; each incorrect answer is worth 1 point (there is value in thinking through the issues!); each null answer earns no points. WINNING and PRIZES: The contestant with the highest numerical score wins and receives a fabulous prize (yet to be determined—don’t get too excited). In the event of a tie, a random drawing (or largest bribe) will determine the unique winner.
Session: Structure and Behavior of the Alaska-Aleutian Subduction Zone [Poster Session]
Type: Poster
Date: 5/3/2024
Presentation Time: 08:00 AM (local time)
Presenting Author: Paul
Student Presenter: No
Invited Presentation:
Authors
Paul Bodin Presenting Author Corresponding Author bodin@uw.edu University of Washington |
Ethan Williams efwillia@uw.edu University of Washington |
Qibin Shi qibins@uw.edu University of Washington |
Yiyu Ni niyiyu@uw.edu University of Washington |
Brad Lipovsky bpl7@uw.edu University of Washington |
Eva Golos golos@wisc.edu University of Wisconsin-Madison |
Veronica Gaete Elgueta velgueta@uw.edu University of Washington |
Marine Denolle mdenolle@uw.edu University of Washington |
Kasey Aderhold kasey.aderhold@earthscope.org Earthscope |
Shima Abadi abadi@uw.edu University of Washington, Seattle, Washington, United States |
Take the Cook Inlet DAS Earthquake Challenge!
Category
Structure and Behavior of the Alaska-Aleutian Subduction Zone