业余天文学家乔尔·拉波因特在2024年规划露营时，通过卫星地图在加拿大魁北克发现了一个异常的圆形结构1。地球物理学家戈登·奥辛斯基于2025年10月组织实地考察团队前往现场，通过断裂锥等地质证据确认这是一个约390万年前形成的撞击坑，位于魁北克Côte-Nord地区马萨尔湖附近1。该撞击坑被命名为Uhackatik，直径约25公里1。
这是自2018年Hiawatha撞击坑发现以来最大的撞击坑1。据统计，地球仅有约200个已确认撞击结构1。奥辛斯基表示，若类似撞击在现代魁北克发生，将造成区域性毁灭，摧毁主要城市并对全球气候产生影响1。
An amateur astronomer's chance observation while planning a camping trip led to the discovery of a previously unknown impact crater in Quebec, Canada. Joel Lapointe first spotted the unusual circular formation on satellite maps in 2024 near Manicouagan Lake in the Côte-Nord region 1. Geophysicist Gordon Osinski subsequently organized a field expedition in October 2025 that confirmed the crater's authenticity through geological evidence, including the presence of shatter cones 1.
The newly identified crater, named Uhackatik, measures approximately 25 kilometers (16 miles) in diameter and formed roughly 390 million years ago 1. It ranks as the largest impact crater discovered since 2018, when the Hiawatha crater—measuring 31 kilometers across—was identified 1. Given that Earth has only approximately 200 confirmed impact structures, this discovery represents a significant addition to the geological record 1. According to Osinski, a similar impact occurring in modern Quebec would cause regional devastation, destroying major cities and producing global climate consequences 1.
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