Theme 4: 東日本大震災後の日本 (Japan after the Great East Japan Earthquake)

Chapter: 3月11日とその直後 (11 March and Its Immediate Aftermath)

Welcome to your study guide for one of the most critical topics in Edexcel A Level Japanese (9JA0). Whether you are preparing for translation and reading in Paper 1, tackling listening and writing in Paper 3, or building your knowledge for the Independent Research Essay (Section C), mastering the events of 11 March 2011 is vital.

Don't worry if the specialized kanji and disaster-related terms feel overwhelming at first. We will break down the essential facts, vocabulary, and societal impacts step by step so you can write and speak with precision and confidence.

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1. The Triple Disaster: Earthquake, Tsunami, and Nuclear Crisis

The events of 11 March 2011 are collectively referred to as a "compound disaster" or "triple disaster" involving an unprecedented earthquake, a devastating tsunami, and a catastrophic nuclear accident.

Key Factual Breakdown

• Date and Time: 11 March 2011 (平成23年3月11日), at \(14:46\) JST (午後2時46分).
• Official Disaster Name: 東日本大震災 (Higashi Nihon Daishinsai — The Great East Japan Earthquake).
• Official Earthquake Name: 平成23年(2011年)東北地方太平洋沖地震 (The 2011 off the Pacific coast of Tohoku Earthquake).
• Epicentre & Magnitude: Off the Sanriku coast (三陸沖), focal depth approx. \(24\text{ km}\). It reached a moment magnitude of \(M_w\ 9.0\text{--}9.1\)—the most powerful earthquake ever recorded in Japan. The maximum seismic intensity of 7 (震度7) was registered in Kurihara City, Miyagi Prefecture.

The Tsunami (津波の被害)

The massive undersea earthquake triggered colossal tsunami waves that struck hundreds of kilometres of the Tōhoku and northern Kantō coastlines:

• Wave Height: Over \(10\text{ metres}\) across vast coastal stretches, with a maximum run-up height (遡上高 / sojōkō) of \(40.1\text{ metres}\) recorded in Miyako City, Iwate Prefecture.
• Human Toll: Over \(18,000\) people died or went missing (死者・行方不明者).
• Primary Cause of Death: Over \(90\%\) of casualties died from drowning (津波による水死 / suishi or 溺死 / dekishi), rather than from collapsing buildings during the initial shaking.
• Hardest-Hit Prefectures (被災三県): Iwate (岩手県), Miyagi (宮城県), and Fukushima (福島県).

Infrastructural Destruction

The violent ocean waters destroyed massive reinforced concrete sea walls (防潮堤 / bōchōtei), ports, roads, and railway networks (including the Tōhoku Shinkansen). Whole towns were reduced to disaster debris (がれき / 災害廃棄物). Further south around Tokyo Bay (e.g., Urayasu in Chiba Prefecture), intense shaking caused severe soil liquefaction (液状化現象 / ekijōka genshō).

The Nuclear Accident (福島第一原子力発電所事故)

The tsunami inundated the backup diesel generators at the Fukushima Daiichi Nuclear Power Station, causing a complete station blackout (全交流電源喪失). With the cooling systems disabled, reactor cores overheated, leading to:

• Core Meltdowns: 炉心溶融 / メルトダウン (roshin yōyū / merutodaun).
• Hydrogen Explosions: 水素爆発 (suiso bakuhatsu) in reactor buildings.
• Radiation Release: Massive atmospheric dispersion of radioactive substances (放射性物質 / hōshasei busshitsu), forcing the government to issue immediate evacuation orders (避難指示) for surrounding communities.

Section Takeaway: Always remember the primary cause of fatalities: over \(90\%\) were due to the tsunami (水死), not the earthquake's shaking. The crisis was a compound event (地震 + 津波 + 原発事故).

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2. Life in Evacuation (避難生活)

Immediately following the disaster, between \(400,000\) and \(470,000\) people were displaced from their homes, facing harsh conditions in emergency shelters and temporary housing.

Emergency Shelters (避難所 / Hinanjo)

Public school gymnasiums (体育館) and community centres (公民館) served as designated emergency shelters. Evacuees faced immediate and grueling hardships:

• Extreme Weather: March in Tōhoku brought freezing, sub-zero temperatures and snowfall.
• Lifeline Outages: Widespread power blackouts (停電 / teiden) and loss of running water (断水 / dansui).
• Supply Shortages: Severe shortages of food, drinking water, warm blankets, and medicine (物資不足 / busshi busoku) due to damaged roads and logistics networks.
• Lack of Privacy: Gymnasiums housed hundreds of families side-by-side with zero partitions, leading to extreme mental stress and sleep deprivation (プライバシーの欠如).

Health Risks for Vulnerable People (要配慮者・高齢者)

Elderly residents and people with pre-existing conditions were exposed to acute medical dangers:

• Hypothermia: 低体温症 (teitaion-shō) caused by unheated shelters.
• Economy Class Syndrome: エコノミークラス症候群 (ekonomī kurasu shōkōgun / deep vein thrombosis) caused by sleeping in cramped vehicles or remaining motionless on cold floors.
• Disaster-Related Deaths (震災関連死 / Shinsai Kanrenshi): Deaths not caused directly by physical injury from the wave or quake, but by physical exhaustion, psychological trauma, worsening chronic illness, and lack of medical support during evacuation. This was especially severe among Fukushima evacuees who suffered sudden, repeated relocations due to the radiation zone.

Transition to Temporary Housing (応急仮設住宅 / Kasetsu Jūtaku)

As emergency shelters closed, displaced residents were moved into prefabricated temporary housing units. While providing privacy, this phase introduced new social challenges:

• Social Isolation: 孤立化 (koritsuka) and solitary deaths (孤独死 / kodokushi) among elderly evacuees.
• Breakdown of Communities: コミュニティの崩壊 (komyuniti no hōkai), as former neighbours were separated across different housing complexes.

Urban Disruption: Stranded Commuters (帰宅困難者 / Kitaku Konnansha)

The disaster impacted major metropolitan areas hundreds of kilometres away. In the Tokyo metropolitan area, the complete shutdown of trains and subways on the evening of 11 March left over 5 million people stranded, unable to return home (帰宅困難者).

Section Takeaway: Evacuation was not just an immediate physical survival challenge; it created prolonged health crises (震災関連死) and social disconnection (孤立化, 孤独死) that lasted for years.

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3. Key Academic Vocabulary & Kanji (必須語彙)

Use these specialized terms in your Paper 1 translations and Paper 3 / Section C essays to demonstrate authentic, advanced Japanese expression.

• 東日本大震災 (ひがしにほんだいしんさい) — Great East Japan Earthquake
• 被災地 / 被災者 (ひさいち / ひさいしゃ) — Disaster-stricken area / Disaster victim (survivor)
• 三陸沖 (さんりくおき) — Off the coast of Sanriku (epicentre area)
• 遡上高 (そじょうこう) — Run-up height (maximum height reached by tsunami on land)
• 防潮堤 (ぼうちょうてい) — Coastal sea wall
• 避難所 / 避難生活 (ひなんじょ / ひなんせいかつ) — Evacuation shelter / Life in evacuation
• 応急仮設住宅 (おうきゅうかせつじゅうたく) — Emergency temporary prefabricated housing
• 震災関連死 (しんさいかんれんし) — Disaster-related death (indirect fatality)
• 帰宅困難者 (きたくこんなんしゃ) — Stranded commuters unable to return home
• 停電 / 断水 (ていでん / だんすい) — Power blackout / Water supply cutoff
• 物資不足 (ぶっしぶそく) — Shortage of relief supplies and necessities
• 放射性物質 (ほうしゃせいぶっしつ) — Radioactive substances
• 自衛隊 (じえいたい) — Japan Self-Defense Forces (JSDF, deployed for rescue and aid)

Model Sentence for Essay Writing:

東日本大震災では、津波による直接的な被害だけでなく、避難所での厳しい環境や孤立化による「震災関連死」も深刻な問題となった。
(In the Great East Japan Earthquake, not only direct damage from the tsunami, but also "disaster-related deaths" caused by severe shelter conditions and social isolation became a grave issue.)

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4. Common Exam Pitfalls & Examiner Tips

Avoid these frequent mistakes flagged by Edexcel examiners:

1. Mistaking the Main Cause of Death:
Incorrect: "Most people died because houses collapsed during the earthquake."
Correct: Over \(90\%\) of fatalities were caused by drowning from the tsunami (津波による水死). Always highlight the tsunami as the primary killer.

2. Confusing Immediate Aftermath with Long-Term Reconstruction:
Make sure you distinguish between the immediate emergency phase (救助, 避難所, 停電・断水, 物資不足) and mid-to-long term reconstruction (復興政策, rebuilding town infrastructure, decommissioning reactors). If a question asks about 3月11日とその直後, focus on the immediate rescue, shelter life, and initial crises.

3. Treating All Three Prefectures Identically:
While Iwate and Miyagi suffered catastrophic tsunami inundation, Fukushima suffered the additional, unique trauma of the nuclear disaster (原発事故), resulting in forced mass evacuations and an exceptionally high rate of 震災関連死.

4. Register Inconsistency:
When writing your research essay in Section C, maintain a consistent formal written register (either the plain である/だ style or polite です/ます style). Never mix both styles in the same essay, and avoid conversational slang (e.g., use 支援 instead of 手伝い; use 避難所 instead of 逃げた場所).

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5. Quick Review Checklist

Can you answer these key revision questions?

• What was the date, exact time, and magnitude of the earthquake?
• What percentage of casualties died from drowning, and what was the maximum tsunami run-up height?
• What were four severe hardships faced by evacuees in emergency shelters (避難所)?
• What is 震災関連死 (disaster-related death), and why did it occur?
• What social problems arose after moving into 仮設住宅 (temporary housing)?
• Who were the 帰宅困難者 in Tokyo?