StEER: M6.4 Paratebueno Earthquake Joint Reconnaissance Report (JRR)

In response, StEER coordinated with colleagues in the Colombian Earthquake Engineering Research (CEER) Network to support their local response to this event, which included a self-directed survey of the impacted area on June 12, 2025. A consortium was formed between CEER, StEER, and the Earthquake Engineering Research Institute (EERI) Learning from Earthquakes (LFE) Program to author this Joint Reconnaissance Report (JRR), which uses both third-party assembled virtually by CEER, StEER and EERI LFE members and CEER-field-collected data to: (1) provide an overview of the June 8, 2025 Mw 6.4 Paratebueno earthquake and it societal impacts, (2) summarize the tectonic and seismic context of this region of Colombia, (3) contextualize performance with Colombian seismic design codes and construction practices, (4) synthesize preliminary reports of damage to buildings and other infrastructure, and (5) offer recommendations for the continued study of this event by StEER and the wider engineering reconnaissance community, centered on: (i) Risk Assessment of Informal and Non-Engineered Buildings, (ii) National Risk Assessment Model for Educational Infrastructure, and (iii) Resilience of Lifelines and Rural Communities. Note that all observations and findings provided in this JRR should be considered preliminary and are based on limited field observations.