Seismica is a community-led effort to build a Diamond Open Access journal for seismology and earthquake science (broadly defined). Diamond Open Access journals are free for all to read, without subscriptions, and do not charge article processing fees to authors.
Seismica is in building phase, and is planned to be up and running by early 2022.
You can read more about the Seismica initiative in our community report, which is available on EarthArXiv: https://doi.org/10.31223/X5304V
(thanks you all those members of the Seismica community who contributed to this report).