Core Points - The extreme weather caused by tropical cyclone "Dithwa" has resulted in significant casualties and damage in Sri Lanka, with 193 confirmed deaths and 228 individuals reported missing [1][2][4] - The Sri Lankan government has declared a public emergency to ensure public safety and facilitate disaster relief efforts [2] - Approximately 78,000 people have been displaced and are currently residing in temporary shelters due to the severe weather conditions [2] - The heavy rainfall has led to flooding, landslides, and the inundation of homes, fields, and roads, particularly affecting the central hilly regions known for tea cultivation [2] - Many reservoirs and rivers have overflowed, causing road blockages and the suspension of passenger train services across the country [2] - Schools and workplaces have been closed, and examinations have been postponed in response to the ongoing crisis [2] - The floodwaters have begun to affect areas around the capital, Colombo, as they move downstream from severely impacted regions [3] - The cyclone is expected to move towards the southern coast of India, with rescue operations being intensified by the military and disaster management teams [3]

Group 1 - A significant rain belt along the Yangtze River has caused frequent rainfall in the Sichuan-Chongqing and Jiangsu-Anhui regions, with rainfall intensity varying greatly and localized heavy downpours observed [1] - Monitoring data indicates that from the 9th, areas in eastern Sichuan, Chongqing, and Hubei experienced rainfall between 50 to 100 millimeters, with localized areas in Chengdu and Deyang reaching 253 to 349 millimeters [1] - Meteorological experts predict that from the 11th to the 12th, the rain belt will persist, with parts of Sichuan, Chongqing, northern Guizhou, northern Yunnan, Hubei, northern Hunan, Anhui, and Jiangsu expected to experience heavy to extremely heavy rainfall [1] Group 2 - Different types of rainfall can trigger geological disasters, with short-duration heavy rainfall leading to rapid surface runoff that can cause mudslides and shallow landslides due to soil saturation [2] - Continuous rainfall allows water to seep into deeper soil layers, increasing the weight of the rock and soil, which can lead to deep landslides when the friction between layers is weakened [2] - The risk of landslides does not cease immediately after rainfall, as water continues to infiltrate the soil, potentially leading to landslides days after the rain has stopped [2]

Core Points - Continuous rainfall has led to landslides and mudslides on the G217 Duku Highway from Dushanzi to Qiaojierma section (K587-K694) [1] - The highway department has confirmed multiple risks of rockfall in the affected area, deeming it unsafe for passage [1] - A two-way traffic closure has been implemented, with an expected reopening time of July 21 at 08:00 [1]

Core Points - The article discusses the impact of Typhoon "Butterfly" on Guangxi Yulin, leading to heavy rainfall and severe weather conditions [1] - A significant landslide and mudslide occurred in Shaping Town, Luchuan County, resulting in nearby villages being affected and three individuals trapped [1] Summary by Category Weather Impact - Typhoon "Butterfly" caused widespread heavy rain in Yulin from the night of June 14 to June 15 [1] - The rainfall intensity ranged from heavy rain to torrential rain, indicating severe weather conditions [1] Natural Disasters - A landslide and mudslide were reported in Shaping Town, Luchuan County, due to the heavy rainfall [1] - Nearby villages experienced damage, highlighting the risks associated with such extreme weather events [1] - Three individuals were reported trapped as a result of the mudslide [1]

作为一种灾害性的地质现象，泥石流大多伴随山区洪水而发生，可携带巨大石块。泥石流的容重、流 速、流量会影响泥石流强度。泥石流流动的全过程一般只有几个小时，短的只有几分钟。 汛期，泥石流暴发突然、来势更猛。北京汛期一般从每年的6月1日到9月15日。在汛期前、中、后的三 个阶段，像李晓玮这类活跃在一线的地质灾害调查员，会时刻盯住全市地质灾害隐患点。 新京报讯（记者张建林）只要是地质勘查工作者，他们总避免不了脏兮兮的裤腿和鞋子。在泥石流和滑 坡易发地段，有时候这些人要踩着碎石渣，跨过阻断路面，半个身子斜着与坡体贴在一起。从包里掏出 工具后，他们又要按不同角度进行坡面测量，并记下变化数据。很显然，这不是个轻松的活儿。 李晓玮今年40岁，是北京市地质灾害防治研究所的一名地质灾害调查员。在中国地质调查局这周正式启 动2025年度汛期地质灾害防御支撑工作的前一天，他随同事来到北京房山开展汛前排查，勘查坡体稳定 性变化情况。 坡体崩塌是形成泥石流物源的主要原因之一。勘查之前，他们要仔细分析勘查的地质灾害易发地区的卫 星遥感图，并解译出可能形成泥石流物源的位置和数量。到达现场后，他们就要实打实的去看、去测。 例如观测坡形坡向、岩 ...