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The conference proceedings of the 13th International INQUA meeting on Paleoseismology, Active Tectonics and Archaeoseismology – PATA Days 2026 are now published and available for download: https://doi.org/10.5281/zenodo.20043287.  The volume contains all submitted and reviewed extended and short abstracts on 135 pages. The meeting was held in Antigua Guatemala from 30 Jan – 05 Feb, 2026. 

Cite the volume as:

Gordillo, C, Flores, O., Grützner, C., Niemi, T. M., & Obrist-Farner, J. (2026). Proceedings of the 13th International INQUA meeting on Paleoseismology, Active Tectonics and Archaeoseismology – PATA Days 2026. 30 Jan – 05 Feb, 2026, Antigua Guatemala, Guatemala. https://doi.org/10.5281/zenodod.20043287.

You can find the field trip guides (and also the abstract volume) for download here: http://pata-days.org/downloads/ – as well as those of all previous PATA meetings. Enjoy reading!

The Motagua Fault in Guatemala is part of the North American – Caribbean plate boundary. It ruptured in a M7.5 earthquake in 1976, killing 23,000 people and causing ca. 230 km of surface ruptures. Very little was known, however, about previous strong earthquakes on this fault. In a new study, we identify five surface-rupturing events in the last 1300 years, including the 1976 quake. We opened a paleoseismological trench and compared our results with archaeological information from nearby sites and historical earthquake data.