Situation Report: M7.4 Chocó Earthquake - October 4, 2026
55 days after the August 10 earthquake, official figures remain at 326 deaths, 4600 injured, and 234 missing. No aftershocks were recorded in the last 24 hours, marking a significant period of seismic calm.
General Situation
As of 06:05 on October 4, 2026, 55 days have passed since the magnitude 7.4 earthquake that struck the Chocó department on August 10. Official casualty figures remain stable: 326 people dead, 4600 injured, and 234 people missing.
Seismic Activity
For the first time in weeks, no aftershocks were recorded in the last 24 hours, according to data from the United States Geological Survey. This period of seismic calm represents a positive development in the evolution of the aftershock sequence.
The strongest aftershock recorded since the main event continues to be magnitude 4.5. During previous weeks, the region experienced continuous seismic activity with multiple events of magnitude 4.0 or higher, particularly in areas near Roncesvalles, San Antonio, and Sipí.
Infrastructure Impact
Documented material damage includes:
- 10677 homes destroyed - 65841 homes damaged - 127 buildings collapsed - 185500 people affected
Reconstruction efforts continue in the most affected communities, with teams working on structural assessments of buildings and providing temporary housing solutions for displaced families.
Search and Assistance Operations
Search operations for the 234 missing persons continue under coordination by national and local authorities. Families can report cases and obtain updated information through colombiatebusca.com and desaparecidos.co.
The Colombian Red Cross maintains humanitarian assistance operations in affected areas, with support from international organizations such as the World Food Programme and Direct Relief.
Institutional Coordination
The National Unit for Disaster Risk Management continues coordinating the inter-institutional response. The United Nations in Colombia maintains its support presence in recovery operations.
Technical Information
For detailed technical information about the main event, consult the USGS executive page. The Colombian Geological Service provides updates on its news portal.
Next Updates
Colombiaquake.org will continue monitoring the situation and publishing updated reports as new information is received from official sources.
