Back中国地震局发布西藏巴青7.0级地震烈度图
中国地震局发布西藏巴青7.0级地震烈度图
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中国新闻网yesterdayScience6 min readChinaView translation

中国地震局发布西藏巴青7.0级地震烈度图

此次地震最高烈度为Ⅸ度,造成地表破裂带长度约25公里,Ⅵ度区及以上面积约35145平方公里。

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中国地震局正式发布西藏那曲市巴青县7.0级地震烈度图。地震最高烈度为Ⅸ度,宏观和微观震中位于玛如乡,Ⅵ度区及以上面积约35145平方公里,涉及2省3市9县43乡镇。

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Why It Matters

2026年10月22日22时33分,西藏那曲市巴青县发生7.0级地震,震源深度10公里。

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中新网10月26日电 据中国地震局网站消息,2026年10月22日22时33分,在西藏那曲市巴青县发生7.0级地震,震源深度10公里。地震发生后,中国地震局派出地震现场工作组,依照《地震现场工作 第3部分:调查规范》(GB/T 18208.3-2011)、《中国地震烈度表》(GB/T 17742-2020)、《地震烈度现场评定》(DB/T 107-2025)等标准规范要求,在震区范围内开展烈度调查工作。通过对震区191个调查点的现场震害和地表破裂调查,并参考余震分布、震源机制解、仪器烈度分布图等科技支撑成果,确定了此次地震的烈度分布,完成了《西藏巴青7.0级地震烈度图》编制工作,现正式向社会发布。

地震烈度分布

此次地震最高烈度为Ⅸ度(9度),宏观震中和微观震中位于西藏自治区巴青县玛如乡,造成地表破裂带长度约25公里,等震线长轴呈北北东走向,长轴约274公里,短轴约157公里,Ⅵ度(6度)区及以上面积约35145平方公里,其中西藏自治区约26141平方公里,青海省约9004平方公里。此次地震涉及2个省(自治区)3个市(州)9个县(区)43个乡镇,其中西藏自治区2个市8个县(区)39个乡镇,青海省1个州1个县4个乡。

Ⅸ度(9度)区面积约449平方公里,主要涉及西藏自治区那曲市巴青县玛如乡、杂色镇;青海省玉树藏族自治州杂多县查旦乡,共计3个乡镇。

Ⅷ度(8度)区面积约1635平方公里,主要涉及西藏自治区那曲市巴青县玛如乡、杂色镇、岗切乡、巴青乡;青海省玉树藏族自治州杂多县查旦乡,共计5个乡镇。

Ⅶ度(7度)区面积约9703平方公里,主要涉及西藏自治区那曲市巴青县岗切乡、杂色镇、拉西镇、江绵乡、本塔乡、阿秀乡、玛如乡、巴青乡,比如县扎拉乡、夏曲镇、恰则乡、香曲乡、茶曲乡、比如镇、良曲乡,索县亚拉镇、热瓦乡、若达乡,聂荣县当木江乡;青海省玉树藏族自治州杂多县查旦乡、结多乡、阿多乡,共计22个乡镇。

Ⅵ度(6度)区面积约23358平方公里,主要涉及西藏自治区那曲市比如县羊秀乡、夏曲镇、良曲乡、达塘乡、香曲乡、白嘎乡、茶曲乡、比如镇、恰则乡,巴青县江绵乡、贡日乡、雅安镇、拉西镇、本塔乡,索县赤多乡、加勒乡、嘎美乡、若达乡、亚拉镇、江达乡、热瓦乡,聂荣县当木江乡、查当乡、白雄乡、索雄乡,嘉黎县麦地卡乡、鸽群乡、嘉黎镇,色尼区色雄乡、达前乡、尼玛乡;昌都市边坝县加贡乡,丁青县木塔乡。青海省玉树藏族自治州杂多县查旦乡、阿多乡、结多乡、莫云乡,共计37个乡镇。

此外,位于Ⅵ度(6度)区之外的部分乡镇也受到波及,个别房屋出现破坏受损现象。

烈度图。来源:中国地震局网站

本图涉及名词解释

宏观震中:极震区内地震破坏最严重的地点。

微观震中:利用仪器记录的地震波信息确定的震中位置。

地表破裂带:震源断层错动在地表产生的破裂和形变的总称,由地震断层、地震鼓包、地震裂缝、地震沟槽等组成。

Ⅸ度(9度):土木、石木结构房屋大多数毁坏和严重破坏;未设防砖混结构房屋多数毁坏,少数严重破坏和中等破坏;干硬土地上多处出现裂缝。

Ⅷ度(8度):土木、砖木、石木结构房屋少数毁坏,多数中等破坏和严重破坏;未设防砖混结构房屋少数严重破坏和毁坏,多数中等和轻微破坏;钢筋混凝土框架结构房屋少数中等破坏,多数轻微破坏和基本完好;室内物品大多数倾倒或移位;少数梁桥挡块破坏;混凝土路面出现裂缝;部分区域存在滑坡、塌方。

Ⅶ度(7度):土木、砖木、石木结构房屋少数严重破坏和毁坏,多数中等破坏和轻微破坏;未设防砖混结构少数中等破坏,多数轻微破坏和基本完好;设防砖混结构房屋少数轻微破坏和中等破坏,多数基本完好;钢筋混凝土框架结构房屋少数轻微破坏和中等破坏,大多数基本完好;少数梁桥挡块破坏;饱和砂层常见喷水冒砂,松软土地上地裂缝较多。

Ⅵ度(6度):土木、砖木、石木结构房屋少数轻微破坏和中等破坏,多数基本完好;未设防砖混结构少数轻微破坏和中等破坏,大多数基本完好;设防砖混结构房屋少数或个别轻微破坏,绝大多数基本完好;钢筋混凝土框架结构房屋少数或个别轻微破坏,绝大多数基本完好。

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