哥伦比亚西部地区遭遇7.4级强烈地震，造成至少111人死亡[1]。超过2700人被报告失踪[1]，约1600栋建筑受损或坍塌[1]。搜救人员、士兵和志愿者正在数十个城镇的废墟中搜寻幸存者[1][3]。
哥伦比亚总统德拉埃斯皮利亚已动员全国军警力量应对这场灾难[1]。美国政府承诺提供1550万美元的援助[1]。
研究表明，该地区广泛采用的薄混凝土墙体设计是建筑易于倒塌的重要原因。哥伦比亚建筑物普遍采用7至10厘米厚的混凝土薄墙、单层钢筋结构[2]，这种设计在地震时容易产生集中应力导致结构失效[2]。2018年对卡利市的调查显示，90%的建筑采用单层钢筋墙、30%的墙厚度为100毫米或更薄[2]。类似的建筑风险在拉丁美洲普遍存在[2]。
A powerful 7.4 magnitude earthquake struck western Colombia on Monday, leaving at least 111 people confirmed dead[1]. The tremor, triggered by a strike-slip fault mechanism at a depth of approximately 110 kilometers[2], caused extensive structural damage across the region, with approximately 1,600 buildings either damaged or collapsed[1]. More than 2,700 people have been reported missing in the aftermath[1].
Search and rescue operations commenced early Tuesday, with rescue teams, soldiers, and volunteers combing through dozens of towns near the epicenter in San Jose Del Palmar and surrounding areas including Pereira, Cali, and Manizales[1][3]. Teams are working through the rubble of destroyed buildings to locate survivors[3]. President Abelardo de la Espriella mobilized the nation's armed and police forces to coordinate the response, declaring that "Choco will never again be the land of the forgotten"[1].
The scale of destruction has been attributed in part to widespread building construction practices in the region. Research examining Colombian buildings reveals that structures commonly feature thin concrete walls measuring 7 to 10 centimeters thick with single-layer steel reinforcement, a design that proved highly vulnerable to seismic stress[2]. A 2018 survey of nine buildings in Cali found that 90 percent utilized single-layer reinforced walls, with 30 percent featuring wall thickness of 100 millimeters or thinner[2]. Similar construction vulnerabilities exist across Latin America and other regions including Australia and New Zealand[2].
International assistance has been mobilized to support recovery efforts. The United States has pledged $15.5 million in humanitarian aid[1].
