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650万人仍面临严重威胁是否人为纵火？洛杉矶山火起因调查复杂繁琐_我的网站

一 | 来源：中央广电总台央视新闻客户端编辑：陆龙天当地时间15日，美国国家气象局表示，由于强风、空气湿度低，洛杉矶县约有650万人面临严重火灾威胁，灭火工作面临巨大挑战。美国史上损失最严重自然灾害控制山火需数周视频加载中...综合洛杉矶消防局和加州消防局消息，截至15日，“帕利塞德”山火的过火面积约为96平方公里，其中只有19%的火势得到了控制；在洛杉矶县东部燃烧的“伊顿”山火过火面积已经超过57平方公里，其中有45%得到控制。洛杉矶市市长巴斯15日对市民表示，该市仍未完全脱离危险。

二 |

An aerial drone photo taken on March 19, 2025 shows the construction site of the Chinese-built Talanta Sports City in Nairobi, Kenya. (Xinhua/Han Xu)In Nairobi, a 60,000-seat football stadium is entering the final stage of construction. Built in just two years, the Talanta Stadium will serve as the main venue of the 2027 Africa Cup of Nations, co-hosted by Kenya, Uganda and Tanzania.
"The schedule was extremely tight -- just two years, while comparable projects elsewhere usually take more than three," Du Xiao, project manager of the stadium for China Road and Bridge Corporation (CRBC), told Xinhua in a recent interview. "There is a very real sense of pride."
According to Du, the stadium has no running track, bringing spectators close to the pitch. Its seats take on the green, red and black of Kenya's national flag, while the facade features the traditional shield and spear of the Maasai people.
Upon completion, the stadium is set to be renamed the Raila Odinga International Stadium, in honor of Kenya's late former Prime Minister Raila Odinga.
The roof adopts a cable-supported grid system erected with a "cable-first, steel-after" method, which Du said is the first of its kind independently designed and built by China. Without temporary steel supports, 48 radial cables are tensioned to lift six ring cables before steel trusses are laid on top, saving at least three months of construction time, with displacement controlled to the millimeter. In 2025 alone, some 1,300 containers of materials and equipment were shipped from China to the site.
For CRBC, the stadium is only the latest chapter of a much longer story. The company built its first road in Kenya in 1984, and over 42 years, its footprint has extended from roads to bridges, ports, railways and buildings.
Du Shan, the executive general manager of CRBC Kenya office, recalled that before 2008, Nairobi was cut apart by three rivers and a cross-district trip could take more than three hours. After CRBC completed the ring roads, the journey now takes about 50 minutes. The company is also expanding the A8, a national trunk road, from two lanes to four and six, she said.
On the Mombasa-Nairobi Standard Gauge Railway, wildlife corridors were built with a clearance of more than six meters, "so that giraffes can pass with their heads held high," Du Shan said.
Workers are engaged at the construction site of the Chinese-built Talanta Sports City in Nairobi, Kenya, on March 18, 2025. (Xinhua/Han Xu)

Workers are engaged at the construction site of the Chinese-built Talanta Sports City in Nairobi, Kenya, on March 18, 2025. (Xinhua/Han Xu)Du Xiao arrived in Kenya in August 2011 and has worked on the ring roads, the Mombasa-Nairobi railway, the Nairobi-Malaba railway and the Nairobi Expressway before taking on the stadium project.
"Working overseas, we should not arrive thinking about changing the place. We should first adapt to and learn from the local community," he said. "What many projects truly open up is not just roads and railways, but trust between people."
The stadium sits near Kibera, Kenya's largest informal settlement. Du Xiao remembers a local young man named Sammy, who had no skills when he applied for a job but volunteered for the project's equipment training and became a pump truck operator. "I asked him why he worked so hard. He said, 'I never thought I would have the chance to touch these machines. Now I feel I can support my whole family.'"
According to Du Shan, the project recruited nearly 500 young workers from the neighborhood during construction, many of whom have qualified as assistant engineers, while about 280 local youths were mentored into technical backbones during the construction of the Mombasa-Nairobi railway.
More than 350 CRBC employees have worked overseas for over a decade, and each year the company awards them a gold medal for long-term dedication, she said. "The medal is not only an honor, but also a kind of warmth. Because 42 years -- it has truly not been easy."
When his child was born, Du Xiao was at a critical stage of the Nairobi Expressway project and could not make it home. "People in overseas engineering live in two worlds -- the project site on one side, the family on the other. All you can do is try to do a little better on each side," he said.
"Maybe I will one day leave this country. But this stadium will remain," he said. "I came here to build projects. Then I found that this country has shaped who I am today."
。火灾情况将于当地时间16日晚有所缓解。此前一天，洛杉矶县消防长官也表示，14、15日两天，该县仍然受强风天气影响。加州林业与消防局称，强风将严重影响空中灭火作业，若风速超过每小时48公里，灭火飞机将无法安全飞行。

三 | 专家表示，控制山火预计需要数周时间。据估计，此次山火造成的破坏和经济损失将达到2500亿至2750亿美元，成为美国史上造成损失最为严重的自然灾害。是否人为引发？火灾起因调查过程或复杂漫长多名知情人士披露，美国有关部门正在对加州多场山火的起因展开初步调查，调查重点是山火是否由人为引发。但目前尚未确定任何一场山火的发生原因。关于山火起因的调查方向包括：是否由燃放烟花引发；是否有人违规露营；是否由电缆起火或其他设备故障酿成；是否人为纵火。调查人员已经排除雷电引发山火的可能性，因为“帕利塞德”和“伊顿”两场山火涉及的区域均没有雷电报告。

四 | 曾有多名要求匿名的知情人士向美媒爆料，声称“帕利塞德”山火可能是人为纵火。洛杉矶县警长罗伯特·卢纳13日表示，警方在洛杉矶山火期间逮捕34人，逮捕原因包括在山火疏散区劫掠财物、非法操控无人机及违反宵禁等。

五 | 洛杉矶县地方检察官纳坦·霍赫曼当天说，一名嫌疑人被控在县东部城市阿祖萨纵火，但与当前重大山火无关。值得注意的是，一家电力企业因“伊顿”山火吃上官司。有人起诉南加州爱迪生电力公司，指控该公司的设备故障触发了“伊顿”山火。南加州爱迪生电力公司证实，有关部门正在调查公司设备是否触发“伊顿”山火。

六 | 灭火专家指出，确定火灾原因可能需要数周甚至数月的时间。调查过程复杂而烦琐，需要仔细分析现场证据，包括目击者的证词、911通话记录及卫星影像等。受灾者愤怒有钱能让山火“改道”？视频加载中...△央视记者探访山火重灾区，一街之隔，两番景象。洛杉矶山火仍在燃烧，截至目前，已造成至少25人死亡，超过1.2万栋建筑被毁，超过155.4平方公里的土地被烧毁。但央视记者近期探访山火重灾区帕利塞德地区时发现，和废墟仅仅一路之隔的地方，很多建筑保存非常完好，似乎完全没有受到山火影响。这些高档的商铺是“帕利塞德村购物中心”。根据美国主流媒体披露，在7日晚、8日凌晨山火蔓延后，购物中心的地产拥有者紧急从相邻的亚利桑那州调来了一支私人救火队。几天前，洛杉矶消防部门还否认过私人救火队的作业，但这个说法很快不攻自破，而且雇佣私人消防服务的情况并不局限于购物中心这一家。在美国，正常情况下，雇佣私人消防服务一般要通过消防部门或者保险公司，很少会直接和顾客对接。

七 | 服务收费也很昂贵，能达到每小时2000美元。事件曝光后，很多洛杉矶居民，特别是那些在火灾中失去家园的受害者非常愤怒，又很无奈，还有什么比“有钱能让山火‘绕道’”更能体现社会的不公呢？同时，他们更想知道，如果私人消防队能阻止山火，为什么城市的消防队却做不到呢？△现场停放的私人租赁的水车，每一辆装有12吨左右的水。还有更多疑问浮出水面，消防部门反馈，他们在救火时发现百分之二十的消火栓都没有水，或者水压太低。这个情况和当时私人消防队的作业有没有关系？同时，这些私家救火车的出现是否阻碍了民众的撤离和官方消防队的及时进入？这些恐怕都是下一个阶段加州政府必须调查的问题。