路易斯安那州发生4.9级地震，为该州陆上有记录以来最强
2026年3月5日清晨，美国地质调查局（USGS）记录到路易斯安那州西北部红河堂区（Red River Parish）发生4.9级地震，震中位于该堂区堂区治所 Coushatta 以西约4.5英里、靠近 Edgefield 一带，时间为协调世界时11时30分（当地时间5时30分），全州多地有感。
USGS 的估计显示，约1,000人经历了强震感，约22,000人感到中等震动，约262.6万人感到轻微震动；超过1,190人通过该局「你感觉到了吗」系统报告有感，震感报告遍及路易斯安那州西北部、德州东部与阿肯萨斯州南部。截至当日，未有结构性损坏的报告。
这是路易斯安那州有记录以来陆上发生的最强地震，也是该州历史上第二强地震；该州最强纪录是2006年2月6日在 Grand Isle 近海录得的5.3级地震。路易斯安那州平时地震罕见，USGS 数据显示，该州自1911年以来此前仅录得约30次地震。
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Magnitude 4.9 Earthquake in Louisiana Is the Strongest Ever Recorded Onshore in the State
On the morning of March 5, 2026, the U.S. Geological Survey (USGS) recorded a magnitude 4.9 earthquake in Red River Parish in northwestern Louisiana. The epicenter was about 4.5 miles west of Coushatta, the parish seat, near Edgefield, at 11:30 UTC (5:30 a.m. local time), and the shaking was felt across much of the state.
USGS estimates indicate that about 1,000 people experienced strong shaking, about 22,000 felt moderate shaking, and about 2.626 million felt light shaking. More than 1,190 people reported feeling the quake through the agency's "Did You Feel It?" system, with reports spanning northwestern Louisiana, eastern Texas and southern Arkansas. As of that day, no structural damage had been reported.
It was the strongest earthquake ever recorded onshore in Louisiana and the second strongest in the state's history; the state record remains a magnitude 5.3 earthquake recorded offshore near Grand Isle on February 6, 2006. Earthquakes are rare in Louisiana: USGS data show only about 30 earthquakes had been recorded statewide since 1911 before this event.
Related: Magnitude 7.5 Deep Earthquake West of Tonga Is the Strongest Worldwide So Far in 2026
来源：美国地质调查局
发布：GSM·美国（发布链接）
图片来源：图：位于路易斯安那州红河堂区堂区治所 Coushatta 的红河堂区法院大楼，本次4.9级地震震中即在该堂区 Coushatta 以西约4.5英里处。Billy Hathorn 摄，CC BY-SA 3.0，经 Wikimedia Commons。 / Photo: The Red River Parish Courthouse in Coushatta, Louisiana; the magnitude 4.9 earthquake was centered about 4.5 miles west of Coushatta in the same parish. Photo by Billy Hathorn, CC BY-SA 3.0, via Wikimedia Commons.
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