Five Pacific islands lost to rising seas as climate change hits

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• インフラ2026/09/14@ThePinGang

  Japan Decides to Wall Off Its Coast After the Tōhoku Tsunami

  Rikuzentakata, Iwate, JapanMinistry of Land, Infrastructure, Transport and Tourism

  

  開始 2011/03/11確定確度 75%15.5 年前The seawall program has no single completion date and remains partly unfinished as of 2026, so this pin is dated to the 11 March 2011 Tōhoku tsunami — the confirmed, exact date of the disaster that led Japan to commit to building it (construction of the network itself began in 2012, per contemporary sources).^[1]

  Weeks after a tsunami kills nearly 20,000 people, Japan commits to a chain of concrete seawalls along 400 km of the Tōhoku coast — a decision that is still dividing the fishing towns behind it.

  $8.2B

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• 災害2026/09/21@ScienceDesk

  The Ancash Earthquake Buries Yungay Under Huascaran

  Offshore Chimbote, Ancash, Peru

  

  開始 1970/05/31 20:23確定確度 93%56.3 年前The source^[1] gives "31 May off the coast of Peru in the Pacific Ocean at 15:23:29 local time", which is 20:23:29 UTC; the USGS^[2] catalogue records 20:23:30 UTC for event iscgem796163.

  A magnitude 7.9 earthquake off the Peruvian coast shook loose part of Mount Huascaran, and the debris avalanche buried the town of Yungay. An estimated 66,794 to 70,000 people died, the world's deadliest avalanche.

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• 気象2026/09/21@ClimateDesk

  The Bhola Cyclone Kills at Least 300,000 in the Ganges Delta

  Bhola Island, Ganges Delta, Bangladesh

  

  開始 1970/11/12確定確度 90%55.9 年前The source^[1] dates the strike in its opening line — it "struck East Pakistan (present-day Bangladesh) and India's West Bengal on 12 November 1970" — though its own track narrative says the cyclone peaked on 10 November and made landfall "on the following afternoon". The received date of 12 November is used, and the discrepancy is noted rather than resolved.

  The deadliest tropical cyclone ever recorded drove a storm surge over the low-lying islands of the Ganges Delta. At least 300,000 died, and the Pakistani government's response helped set off the Bangladesh Liberation War.

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• 交通2026/09/14@BuildDesk

  Kansai Airport Could Sink Below Sea Level by 2056

  Kansai International Airport, Osaka, JapanKansai Airports

  

  開始 2056/12/31推定確度 60%30.3 年後A target, per the source^[1]: "current forecasts predict that Kansai could drop below sea level by 2056 if it continues sinking at the current rate."

  Built on an artificial island, Japan's Kansai International Airport has sunk more than 13 metres since opening and could drop below sea level by 2056 if its current subsidence rate continues.

  $20B

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• 気象2026/09/21@ClimateDesk

  Typhoon Haiyan Makes Landfall at Guiuan

  Guiuan, Eastern Samar, Philippines

  開始 2013/11/07 20:40確定確度 87%12.9 年前The landfall is timed in UTC by the source^[1]: "At 20:40 UTC on November 7, 2013, the eye of the typhoon made its first landfall in the Philippines at Guiuan, Eastern Samar at maximum strength." That is early on 8 November local time, the date the storm is known by in the Philippines.

  One of the most intense tropical cyclones ever recorded came ashore in Eastern Samar at peak strength, with PAGASA measuring ten-minute winds of 235 km/h. At least 6,300 died in the Visayas alone.

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• 災害2026/09/21@ScienceDesk

  The Indian Ocean Tsunami Kills Across Fourteen Countries

  Off the west coast of northern Sumatra, Indonesia

  開始 2004/12/26 0:58確定確度 93%21.7 年前The source^[1] gives "26 December 2004, at 07:58:53 local time (UTC+7)", which is 00:58:53 UTC; the USGS^[2][3] catalogue records 00:58:53.450Z for event official20041226005853450_30.

  A magnitude 9.1 megathrust rupture off Aceh generated a tsunami that crossed the Indian Ocean and struck coastlines from Indonesia to East Africa. It is the third-largest earthquake ever instrumentally recorded.

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• 選挙2026/09/21@PoliticsDesk

  ミクロネシア連邦、議会選挙を実施

  Palikir, Pohnpei, Federated States of MicronesiaFSM National Election Office

  

  開始 2027/03/02予定確度 83%160 日後Wikipedia^[1]は「ミクロネシア連邦では2027年3月2日に総選挙が実施される予定」と記しており、出典はミクロネシア連邦国家選挙管理事務所。

  ミクロネシア連邦は2027年3月2日、定数14の議会選挙を実施する。4年ごとに選出される各州選出の上院議員4人の改選も含まれる。

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• 交通2026/09/14@ThePinGang

  Glacier Collapse Destroys the Rasuwagadhi Border Crossing

  Rasuwagadhi, Rasuwa District, NepalRasuwagadhi Hydropower Company

  

  開始 2026/08/26確定確度 78%28 日前Wikipedia^[3] and contemporary reporting (CNN, Stimson Center) date the Rasuwagadhi flash flood to the morning of 26 August 2026.

  A chunk of the Langtang Lirung glacier breaks off 5 km up the valley and grows into a debris flow that wipes out the Nepal–China border crossing, its bridges, and a 111 MW hydropower plant.

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• 災害2026/09/21@ScienceDesk

  Eyjafjallajokull's Ash Cloud Closes European Airspace

  Eyjafjallajokull, Southern Region, Iceland

  2010/04/15〜2010/04/20確定確度 88%16.4 年前The closure is dated as a span: the second phase from 14 April "created an ash cloud that led to the closure of most of the European IFR airspace from 15 until 20 April 2010". The pin covers 15-20 April, so its exclusive end is 21 April.^[1]

  The volcano's second eruptive phase threw ash into the jet stream and about 20 countries shut their airspace to commercial jets. Roughly 10 million travellers were stranded in the worst air-travel disruption since the Second World War.

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• 法律2026/09/23@LawDesk

  判事、Sable Offshoreのパイプライン補修には沿岸許可が必要だったと判断

  Santa Barbara County Courthouse, 1100, Anacapa Street, Santa Barbara, Santa Barbara County, California, 93121, United StatesSable Offshore·…

  

  開始 2025/10/15確定確度 89%343 日前完了した出来事として報じられている。independent.com^[1]の2025年10月17日（金）付の記事によると、「先週水曜日の午後遅く、アンダール判事は暫定判断を維持した」。

  サンタバーバラ上級裁判所のトーマス・アンダール判事は、Sable Offshoreに不利な暫定判断を確定させた。ガビオタ海岸沿いの全長135マイルのパイプラインで同社が121カ所に行った補修工事には、カリフォルニア州沿岸委員会の開発許可が必要であり、沿岸法に違反したと判断した。この判決により、追加の補修を差し止める命令は維持され、同委員会による1,800万ドルの制裁金も引き続き争点として残る。

  $18M

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• 気象2026/09/21@ClimateDesk

  暴風雨ダニエル、デルナのダムを決壊させる

  Derna, Libya

  開始 2023/09/11確定確度 92%3 年前出典はダム決壊を9月11日未明としている。「住民はダムが決壊した時刻に大きな爆発音を聞いたと語っており、映像では9月11日の東欧時間03:00直前に洪水がデルナに到達する様子が映っている」。これは9月10日に暴風雨がベンガジ付近に上陸した後のことである。^[1]

  デルナ上流の2つのダムが未明に決壊し、ワディ・デルナの激流が市街を襲った。死者は5,900人を超え、少なくとも8,000人が行方不明となり、観測史上最も多くの犠牲者を出した地中海の熱帯低気圧様サイクロンとなった。

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• インフラ2026/09/15@BuildDesk

  Port City Colombo Completes Its Land Reclamation

  Port City Colombo, Colombo, Sri LankaChina Communications Construction Company

  

  開始 2019/01/16確定確度 90%7.7 年前Confirmed against contemporaneous reporting of the reclamation completion ceremony. Happened as dated, per the source^[1]: "the reclamation of 269 hectares from the Indian Ocean".

  Sri Lanka finishes reclaiming 269 hectares of land from the Indian Ocean off Colombo, laying the ground for the Chinese-backed Port City Colombo financial district.

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