GeoPRISMS-themed Eos issue – April 2021

Dear GeoPRISMS Community,

We are pleased to announce the release of the special Eos-themed issue highlighting GeoPRISMS and MARGINS legacy, taking a look at 20 years of science accomplishments and community building efforts made through the programs. This issue features Science Updates that offer summaries of multidisciplinary research conducted across GeoPRISMS primary sites. We would like to thank all of the authors for writing such impactful pieces:

Also in this issue:

And thanks to Michelle Coombs for her fantastic photo that made the cover! Michelle took this photo in 2015 during the western Aleutians field work, jointly funded by GeoPRISMS, the Deep Carbon Observatory, and Alaska Volcano Observatory. Her image won the 2015 GeoPRISMS photo contest.


– The GeoPRISMS Office

Seismicity catalog for Alaska Amphibious Community Seismic Experiment 2018

In 2018-2019, the Alaska Amphibious Community Seismic Experiment (AACSE) deployed 75 ocean-bottom seismometers and 30 onshore seismometers in the Kodiak-Shumagin segments of the Alaska subduction zone, sampling the arc, thrust zone and outer rise. As part of the AACSE project, the Alaska Earthquake Center (AEC) has been producing an earthquake catalog that makes use of this new array, in addition to onshore Transportable Array and permanent stations. AACSE is the first major project sampling offshore seismicity in Alaska with ocean-bottom seismometers, so these data have widespread value.

The first half of that catalog, covering May – December 2018, is now released as a contributed dataset to the ANSS Comprehensive Earthquake Catalog (ComCat):  This catalog is an enhancement of the standard AEC catalog by including additional earthquakes and arrivals detected from the AACSE stations, onshore and offshore. It is openly available and accessible through the ComCat Catalog search, setting the Catalog option to Aacse.

Additional data, including some metadata and information about the deployment, can be found on the AACSE project web page hosted by GeoPRISMS: /research/community-projects/alaska/ with data links under the “Deployment and Data” tab.

The AACSE project is described in overview terms in an EOS article (Abers et al., 2019):

A full description of the data, deployment, and initial assessment is described in a Data Mine:

Barcheck, C.G., G.A. Abers, A.N. Adams, A. Bécel, J. Collins, J.B. Gaherty, P.J. Haeussler, Z. Li, G. Moore, E. Onyango, E. Roland, D.E. Sampson, S.Y. Schwartz, A.F. Sheehan, D.J. Shillington, P.J. Shore, S. Webb, D.A. Wiens, & L.L. Worthington (2020), The Alaska Amphibious Community Seismic Experiment (Data Mine), Seism. Res. Lett., 91, doi: 10.1785/022020018.

AACSE is funded by the National Science Foundation, award OCE-1654568. The catalog generation received additional support by the U.S. Geological Survey’s Earthquake Hazards Program through grant G20AP00026.

The Final GeoPRISMS Newsletter is now available!

Dear GeoPRISMS Community, Friends, Colleagues,

The GeoPRISMS Program is now coming to completion after its run of over ten years. As part of the program legacy, the GeoPRISMS office has put together the final issue of the newsletter that celebrates a decade of scientific achievements made through the Program and the efforts that have enabled to build this amazing science community. Through science reviews, program highlights, testimonials, and research nuggets -contributed by researchers from the GeoPRISMS Community – this final newsletter highlights the individual and collaborative efforts that have led to discoveries made via the GeoPRISMS subduction and rift initiatives, with the goal of communicating the breadth and depth of the science that has been carried out by the GeoPRISMS community.

It is with great pleasure that we share the final product that has been in the work for about a year. Access the digital edition of the newsletter online (note: you can download the PDF version of the newsletter by using the download button located on the lower right part of your window or visit the GeoPRISMS website at We would like to take the opportunity to thank everyone who contributed to this final newsletter and for making it such an important program legacy. You rock!

We have other exciting news to share!

Eos, in collaboration with the GeoPRISMS Office, has developed a Special Theme coverage focusing on the GeoPRISMS program and its accomplishments. This issue will feature Science Updates that offer summaries of research conducted across GeoPRISMS primary sites. The print issue will be distributed in April and the digital edition will be available at the end of the month.

Finally, the GeoPRISMS Office is developing a legacy website which will serve as a repository for all important information about the program such as publications, access to datasets collected through GeoPRISMS-funded projects, and program archives…Stay tuned!

Be well.

Anaïs and Demian – The GeoPRISMS Office