Showing posts with label natural disasters. Show all posts
Showing posts with label natural disasters. Show all posts

3 Kejadian Angkasa Luar Mengejutkan di Bulan April 2025: Hujan Meteor dan Konjungsi Planet

April 2025 membawa deretan fenomena langit yang memukau untuk diamati, cocok bagi para pemula dan juga pencinta astronomi. Dimulai dengan munculnya bulan purnama sampai kejadian istimewa di mana kedua planet terlihat bersebelahan.

Tiga peristiwa tersebut mengingatkan kita tentang keelokan serta dinamisme alam semesta yang selalu berkembang. Mengutip dari halaman Lembaga Penelitian dan Pengadaan Inovasi Nasional Dan dari sumber lain, berikut tiga fenomena langit yang akan terjadi pada bulan April tahun 2025.

1. Malam bulan purnama (13 April)

Pada tanggal 13 April 2025, bulan akan mencapai tahapan purnama, memamerkan wajah lengkapnya yang cerah dan gemilang di atas langit malam. Fenomena ini muncul saat bulan berposisi persis di seberang matahari, membuat semua bagian permukaannya yang mengarah ke bumi mendapatkan pencahayaaan sepenuhnya.

Waktu ini sangat ideal untuk para astronom yang ingin mengagumi keunikan permukaan Bulan menggunakan teleskop. Tambahan pula, sinar cerah pada saat Bulan purnama kerap kali menciptakan atmosfer khusus dalam bidang fotografi malam hari.

2. Puncak hujan meteor Lyrid (21-22 April)

Satu lagi pertunjukan langit malam yang dinanti-nantikan setiap tahun, yaitu hujan meteor Lyrid, akan mencapai puncaknya di antara malam 21 sampai subuh 22 April 2025. Hujan meteor ini terjadi karena adanya partikel-partikel halus dari komet Thatcher (C/1861 G1), dan ciri khasnya adalah gerakan meteor-meteor cepat dengan kecepatan sekitar 49 km per detik.

Rasi bintang Lyra, yang merupakan titik masuk meteor, akan timbul kira-kira pada pukul 22:08 Waktu Indonesia Bagian. Meskipun demikian, observasi kali ini bisa jadi kurang optimal lantaran adanya cahaya bulan di tahap separuh akhir.

Di puncaknya, diperkirakan kurang lebih 18 meteor setiap jam dapat diamati. Walaupun demikian, pertunjukan Langit Hujan Lyrid masih memberikan tontonan yang memukau.

3. Perjumpaan Planet Venus dan Saturnus (29 April)

Mendekati penghujung bulan, Venus dan Saturnus akan mengalami fenomena konjungsi sehingga kedua benda langit tersebut kelihatan sangat dekat dengan jarak sudut kira-kira 3 derajat. Mereka akan naik ke langit secara bersamaan, dengan Saturnus tampil lebih dahulu pada pukul 03:13 WIB, disusul oleh Venus hanya selang satu menit setelahnya.

Kedua planet tersebut bakal kelihatan jelas di bagian langit timur sebelum sinar mentari menjadi lebih mencolok. Ketika sang surya muncul, Venesia dan Satornis masih bisa dilihat sekitar 31 derajat dari garis horizon. Inilah saat ideal bagi Anda untuk mengamatinya secara kasat mata ataupun menggunakan teleskop sederhana.

April 2025 membawa sejumlah atraksi langit yang memukau untuk disaksikan, termasuk bulan purnama dan kongkurensi planet. Masing-masing kejadian tersebut merupakan bukti betapa luarbiasanya jagad raya kita.

Minnesota Sisters From Myanmar Raise Funds for Earthquake Relief Back Home

The death toll of the Southeast Asia earthquake has risen above 3,100 individuals. In Myanmar, search crews are sifting through debris hoping to find any trace of over 200 people who remain unaccounted for.

While recovery operations persist, a local organization based in the Twin Cities is exerting maximum effort to assist individuals abroad.

That was the moment when this earthquake of 7.7 magnitude struck Myanmar, causing these St. Paul sisters to reach their limit.

“I found it hard to comprehend; things were just so baffling. As I examined it further, they became increasingly overwhelming,” stated Mirian Seng Bu, a resident of St. Paul. Mirian along with her sisters Ruth, Margaret, and Mary belong to the ‘Kachin’ ethnic group, which is part of the larger Tibeto-Burman community from northern Myanmar, commonly referred to as Burma. Following the military takeover, their family decided upon settling down in Minnesota.

Therefore, as they consume headlines reporting a death toll exceeding 3,000 in and around their home country...

I told my sisters right here, 'We can’t stay idle anymore,’ so we began brainstorming ideas for raising funds,” explained Mirian.

An idea has currently garnered more than $6,000 through GoFundMe along with a significant amount raised outside this platform.

"Essentially, what we want to ensure is that every single donation goes directly to those affected out there," Mirian said to WCCO.

They are collaborating with an Anglican archbishop well-acquainted with the family and a head of a youth philanthropy group who has previously assisted in similar scenarios.

"She was saved after being stuck for more than 120 hours at a hotel in Mandalay," Mirian mentioned additionally.

And as the sisters cannot be there to save...

Just let me voice support for my nation," Mirian stated. "Our folks are not quitters; I have faith in them. They will strive hard to reconstruct our tomorrow.

All the sisters have attended St. Paul College and are hoping their fundraising initiatives will make significant progress.

男子海底被困3天奇迹生还,没有光线和氧气瓶,他咋活下来的?

众所周知人类是无法在海底生存的。

一艘油井拖船在执行任务时被海浪掀翻, 12名船员随着船体一起沉到了海底 ,所有人都认为不会有幸存者。

没想到其中一名船员被困海底三天后竟然还能奇迹生还 ,海底没有光线、食物和氧气瓶,他到底是怎么活下来的?

男子海底被困三天

这个奇迹发生在2013年,幸存者哈里森·奥肯是一名土生土长的尼日利亚人,由于尼日利亚紧邻几内亚湾,所以全国80%的石油开采都来自于几内亚湾的海上油田。

哈里森从小的梦想就是当一名船员,功夫不负有心人, 他20多岁的时候成为海上油井拖船的船员并担任厨师一职。

哈里森所在的公司专门为海洋石油平台提供搭建、运输和拖船服务,所谓拖船就是把缆绳系在装油的油轮上,几艘拖船分别发力使油轮保持稳定。

5月25日哈里森和同事们照例上船工作,由于几内亚湾的海盗十分猖獗,睡前船长要求大家锁好通道以及自己房间的门,也就是这个规定间接导致了大家的悲惨遭遇。

厄运就发生在26日的凌晨 ,凌晨4点半哈里森起床做早餐,就在他去厕所的时候海面突然刮起风暴,船身开始剧烈晃动。

此时拖船和油轮之间还连着一根缆绳,缆绳限制拖船无法随着海浪的力量漂浮,侧面袭击过来的海浪重重击打着船身, 前后几秒钟的时间拖船就失去平衡被海浪淹没了。

当时正在厕所的哈里森感觉天旋地转,他从洗手间的一端被抛到了另一端,然后再被抛回来,哈里森被跌得头晕目眩,原本在脚下的马桶也从头顶掉了下来。

此时厕所已经上下颠倒,身下的水位不断上升, 哈里森意识到拖船翻了并且正在迅速下沉!

哈里森立马打开厕所门想逃出去,通道上已经有三名同事试图打开通道门,可是通道门是锁着的,并且在海底水压下根本打不开门。

突然侧面通道涌来一股汹涌的海水,三名同事被冲走,哈里森吓得赶忙返回厕所,此时船体停止摇晃, 哈里森猜测船体应该已经沉到了30米深的海底。

冰凉的海水已经淹到了哈里森的脖子,四周漆黑一片,除了海水涌动的声音外再无声息,叫天天不应叫地地不灵,没有参照物时间概念也模糊了。

哈里森不知道自己被泡了多久, 他只知道自己体温下降、皮肤发白变皱,一些小鱼小虾开始啃食他脱落的皮肤组织。

再后来哈里森的身体几乎到达极限,在里水泡得太久再加上氧气越来越少,哈里森的神情开始呆滞。

按照常理推断哈里森很难活下去,死亡只是时间的问题,那他到底是怎么在海底存活了三天呢?主要有四个原因。

首先哈里森找到了两处气穴 ,所谓气穴是指船体倾斜导致某个空间高于船体内的水位线,这就是气穴。

第一处就是哈里森目前所处的厕所 ,水位到达哈里森的脖子后再也没有上涨,船体倾斜导致哈里森的头顶是一处三角空间。

这十几厘米高的三角空间给了哈里森喘息的机会,哈里森凭借着狭小的空间和氧气苦苦支撑着。

第二处气穴是隔壁工程师的房间 ,这里有一个高度将近1.3米的气穴,哈里森用一些墙板和床垫搭建了一个漂浮的平台,他躺在平台上就不用受海水浸泡之苦了。

在这个房间里哈里森还发现了一瓶沙丁鱼罐头和一罐可乐,这些食物给予了哈里森能量和活下去的动力。

其次是救援队及时出现。

当时拖船沉底后潜水员就下潜搜救了,哈里森使劲敲击船舱企图吸引潜水员的注意,可惜潜水员没听到。

由于当时风暴刚走海底波动很大,生命探测仪被干扰探不出生命迹象,潜水员绕着船体游了几圈就被迫上岸了,第一次生还机会和哈里森擦肩而过。

事发后第三天救援队再次下水打捞尸体,潜水员进入船舱内部搜寻,哈里森听到动静后立马向潜水员游去奋力地伸出手,潜水员看到哈里森还活着的时候特别震惊。

气穴空间只有那么大,哈里森呼出去的二氧化碳又被重新吸进呼吸道,体内二氧化碳浓度应该达到了致命的水平,哈里森应该已经患上了高碳酸血症。

如果救援队晚来几个小时,哈里森应该就撑不下去了。

哈里森能活下来还有一个原因是专业的救援设备 总部用潜水钟将哈里森救了上来。

找到哈里森固然高兴,但如何把他救上岸是一件困难的事,如果哈里森强行上岸会得减压症的。

陆地空气中大约有78%是氮气,标准大气压下人体会通过呼吸排出多余的氮气,人体内的氮气很少。

压力越大气体在液体中的溶解度越高,哈里森已经在水下待了60个小时,体内的氮气早已溶解在血液和组织中。

如果直接上岸体内的氮气来不及通过呼吸排出体外,它们会进入血管关节组织和神经系统从而患上减压症, 轻则关节痛,重则瘫痪甚至心脏骤停死亡。

哈里森的状态不能再拖了,潜水钟就十分适合营救哈里森,它可以缓慢调节水下压力,帮助哈里森合理降压。

最后一个也是最重要的原因是哈里森太幸运了 ,正是因为他最初恰巧处于气穴之中,他一开始就有生还的机会。

哈里森身边流动的海水又吸收了一部分二氧化碳,有效地保留了更多氧气,种种巧合凑在一起看来哈里森命不该绝。

营救过程中哈里森多次昏厥,60个小时是人类海底生存的极限了,上岸后哈里森立马被转移进了专业的减压舱,他在这里住了整整三天才恢复健康。

结语

12名船员沉海,只有哈里森一人生还, 11名遇难者只找到了10具遗体。

哈里森是幸运的,他在海底绝境求生的韧性值得我们学习,无论遇到什么困难和挫折都要坚强地活下去。

对此大家怎么看?

参考信息源

中国日报网2013年12月5日发布《被困海底 尼日利亚男子靠一罐可乐苦撑三天获救》

Islanders Who Dodged Millions in Damage From Cyclone Alfred Call Themselves Lucky

Residents refer to Moreton Island as a haven.

Encircled by pristine waters along the south-eastern coastline of Queensland, this sandy island lacks asphalted roads and its inhabitants primarily reside without being connected to public utilities.

Aaron Conis has been coming to the Island since he was 16 years old and now considers Moreton as his home.

"There hasn't been much change in the last 40 years," he stated.

Just the ideal retreat from society, which is precisely why we’re all gathered here.

More than just a peaceful retreat located 58 kilometers away from Brisbane, Moreton Island and the adjacent bay islands of Queensland hold significant importance for the area.

They safeguard Brisbane and other mainland regions against intense storm surges and ocean swells, serving as natural defenses.

And they were instrumental in protecting millions from the brunt of Cyclone Alfred.

Mr Conis stated that it was accurate that the islands effectively shielded Brisbane.

However, when it comes to playing rescuers, the level of sacrifice could have been much greater.

He remarked, 'It’s akin to receiving a Purple Heart for merely swatting a mosquito.'

Islands serve as natural obstacles

The Brisbane Lord Mayor Adrian Schrinner stated that the city "avoided a major issue."

Moreton, North Stradbroke, and Bribie Islands served as buffers, bearing the initial impact of Cyclone Alfred before it weakened into a tropical low.

The Bureau of Meteorology (BOM) stated that Alfred initially made landfall on Queensland's offshore islands as a Category One tropical cyclone.

"When engaging with the islands, the system slowed down and started to weaken," according to the BOM explanation.

The wind gusts subsided, causing the system to fall below cyclone strength.

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Steve Turton, an associate professor of environmental geography at Central Queensland University, has spent three decades researching tropical storms.

He indicated that it was reasonable to state the islands effectively shielded Brisbane from a far more damaging storm.

“If those islands weren’t out there, it likely would have continued advancing inward and might have stayed at category two intensity,” he explained to the ABC.

He mentioned that regions on the mainland, away from the island group, faced greater exposure, which explains why the Sunshine Coast and Gold Coast experienced much stronger impacts.

He stated that there is no offshore protection.

Not only are they vulnerable to events like this, but also to East Coast Lows.

The people who live on Moreton Island feel fortunate.

Even though the Bay Islands experienced the brunt of the storm, residents report that they ended up with less damage than anticipated.

When compared to certain regions on the mainland, they consider themselves fortunate.

Initially, Moreton Island experienced gusts of up to 100 km/h.

However, Mr Conis, who assists at a store in the northwestern township of Bulwer, mentioned that the effect "wasn't really severe."

He mentioned that several trees had fallen, debris was scattered everywhere, and there was significant soil erosion.

The shop received a few tree branches through the roof and lost power, but things are finally beginning to fall into place now.

Moreton Island operates independently of any energy supplier.

A majority of the locals and enterprises rely on solar energy, battery systems, and generators, which means they were quite equipped to handle a natural calamity.

Bulwer local Colleen Gaffney mentioned that "everything continued as usual."

The individual, who is 64 years old, oversees 40 properties on the island, with just two of them experiencing water damage.

She mentioned it wasn’t something serious.

"No-one was scared."

The north side of Stradbroke encountered the heart of the storm.

On North Stradbroke Island, the cleanup efforts have been quite extensive; however, residents were still taken aback by how quickly things bounced back.

The center of the cyclone grazed North Stradbroke, passing over the island as a Category One storm.

Marco Kelsand ventured to the headland with a companion to observe the eye of the storm passing through on Saturday.

He observed the skies grow darker and the winds become increasingly strong prior to turning "dull".

He believed the island had mostly escaped unscathed until the weather made another severe change.

"The next evening turned out to be the one when everything fell apart," Mr Kelsall stated.

The winds intensified once more and howled through... at certain moments, you genuinely felt uneasy.

The individual mentioned that at age 27, the island experienced extensive power failures and significant flooding, with several buildings completely submerged in water.

Separated from the rest of the land, local volunteers stepped forward to clear the roads and visit elderly residents.

However, within roughly three days, emergency vessels started to arrive, initiating efforts to rebuild the power supply and communications infrastructure.

"The majority of it, they’ve really dived into, which is excellent," Mr Kelsall stated.

Although some spots are still experiencing minor flooding, it’s incredible how effectively the water has receded, considering we’re on an island.

Islands set to recover

Julian O'Grady, a senior coastal researcher at the CSIRO, stated that the sand islands like Stradbroke, Moreton, and K'gari to the north have developed inherent toughness over time.

They had a "vital part" in protecting the mainland from ocean waves, yet they were strategically positioned to bounce back from severe meteorological conditions.

He mentioned that winds over millennia have sculpted massive, steep, and high sand dunes on the barrier islands, allowing for quick draining through the permeable sands.

Conversely, the flat areas of mainland Brisbane hold onto water for extended periods due to their reliance on sluggish draining through both natural and man-made systems.

It was anticipated that the beaches would also recover through natural means.

Professor Turton mentioned that although it might take some time, the sand will ultimately find its way back, and the beaches will revert to their previous condition.

Locals struggle to leave

Even though the natural setting might be adept at handling extreme weather conditions, there remained a possibility that residents could find themselves cut off for several days.

Natalie Lutter, a volunteer with the Bay Islands Kindness Team, mentioned that the effects of Alfred led to numerous vulnerable individuals requiring assistance.

The organization assists communities on Bay Islands including Macleay, Russell, Lamb, and Karragarra.

In the last seven days, they have assisted numerous locals with property cleanups and supplied them with meals, grocery items, and necessities.

Ms Lutter mentioned that several residents attempted to depart from the islands prior to the storm; however, not everyone managed to reach the mainland before ferry services ceased operations.

"The bay can be perilous because of strong currents, consistent winds, and floating debris in our waters," she stated.

This may lead to transportation being interrupted until conditions become safe, which in turn impacts medical services, food supply, employment, and education.

Several residents have had their power disconnected for over 120 hours, however, Energex has been working to restore these essential services, as mentioned by her.

Isles will keep safeguarding Brisbane

Professor Turton stated that the islands will remain significant in the future, particularly when dealing with intensified cyclones.

He mentioned that if they pass those islands, these would continue to offer protection, yet there’s still room for a more intense storm.

The intensity of Alfred was reduced due to its more leisurely tempo.

Doctor O'Grady from the CSIRO mentioned that there was additional time for friction to occur over land, which helped dissipate the storm's energy.

"As they cross land, there isn’t the warming effect of the ocean beneath them, causing them to dissipate," he explained.

They lack the moisture needed to fuel and invigorate the tropical cyclone.

However, if quicker cyclones were to come closer in the days ahead, the islands would have limited options for action.

"To be frank, [this time] they escaped with relatively minor consequences given how bad things could have turned out," Professor Turton stated.

Should cyclones move swiftly, the islands might fail to provide complete protection for the mainland.

For residents of the islands such as Mr Conis, the prospect of being in the storm buffer zone didn’t faze him if the weather were to become more intense in years to come.

He was more concerned that others might discover their picture-perfect way of living.

He stated, 'I don’t believe the weather is anybody’s business.'

The reality is that we lack both traffic signals and paved roads… our biggest concern is that an influx of visitors might discover this place.

Hong Kong Landslides: Poor Maintenance Blamed for Up to 60% on Private Slopes

Authorities warn higher drainage capacity for slopes needed, with more extreme weather expected in the future

Up to 60 per cent of the landslides that occur on Hong Kong's private slopes every year are related to poor maintenance, authorities have found, urging owners to take action amid the impact of climate change.

Government experts said slopes would be vulnerable to more intense weather.

"With more extreme weather expected in the future, there might be more concentrated rainfall during rainy seasons, which will require higher drainage capacity for slopes," said Lawrence Shum Ka-wah, deputy head of the Geotechnical Engineering Office on Hong Kong Island.

Are you looking for insights into the most significant issues and developments globally? Find your answers here. SCMP Knowledge Our latest platform features handpicked content including explainers, FAQs, analyses, and infographics, all provided by our acclaimed team.

He mentioned that drainage systems can handle obstructions caused by leaves or twigs, however, severe weather conditions may exceed their capacity.

On average, about 10 to 20 landslides took place annually on privately owned slopes over the last ten years, according to Shum, referencing a departmental assessment.

Typically, around 30 to 60 percent of these issues stemmed from inadequate maintenance by property owners.

He stated that the areas affected by landslides were influenced by the pattern of rainfall, noting that no particular district needed extra focus. However, he emphasized that upkeep would be the primary issue to address.

Shum stated that authorities reported over 50 landslides on private slopes in 2023, during the year when a "once-in-500-years storm" hit the city. Of these landslides, 30 percent resulted from inadequate maintenance.

The severe weather condition activated the city’s most extended black rainstorm alert, lasting over 16 hours. This transformed roads into waterways and left motorists trapped in their cars, along with inundating malls and train terminals. Over 100 individuals required medical attention at hospitals.

Shum additionally pointed out to the owners that they could be responsible for maintaining adjacent land areas, even though these may not be mentioned in their land lease agreements.

At present, roughly 2,500 artificial slopes situated on government-owned property are being cared for by the private owners of neighboring plots.

Each year, the department chooses 100 individual ski slopes for safety inspections conducted by them.

When individuals are classified as hazardous, the authorities issue a Dangerous Slope Order (DSO) to property owners with problematic slopes. This mandates that they conduct investigations and undertake required preventative measures using certified specialists.

By 2023, 271 DHOs remained unimplemented by private property owners, as stated by Robert Cheng, who serves as the chief building surveyor at the Buildings Department.

He urged the owners to keep their slopes maintained in order to avoid the risk of landslides.

Cheng also mentioned that routine inspections of both the slopes and underground water pipelines were essential.

The administration likewise provides assistance to proprietors encountering monetary challenges, including grants and financing options.

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The article initially appeared on the South China Morning Post (www.scmp.com), which is the premier source for news coverage of China and Asia.

Copyright © 2025. South China Morning Post Publishers Ltd. All rights reserved.

龍捲風襲擊美國中南部:罹難人數上升至40人

(法新社華盛頓17日電) 美國地方當局表示,上周末席捲美國中部和南部地區的龍捲風與強烈風暴罹難人數已增至40人,此外還有數十人受傷。

受影響地區的新聞頻道播出房屋屋頂被掀翻、樹木倒塌,以及卡車被強風吹翻的影片。

堪薩斯州(Kansas)警方表示,在「強烈沙塵暴」導致能見度驟降的情況下,當地發生涉及50多輛汽車的連環車禍,造成8人死亡。

奧克拉荷馬州(Oklahoma)緊急事故管理單位表示,由於野火和強風肆虐,共有4人喪命。

美國總統川普昨天在自家社群媒體「真實社群」(Truth Social)發文寫道:「我們正密切關注影響南部和中西部各州的強烈龍捲風與風暴。」

川普指出,已派遣國民兵(National Guard)前往阿肯色州(Arkansas)支援。當地官員表示,有3人因風暴死亡,還有32人受傷。