Japan typhoon death toll rises to 10 as Dujuan triggers historic flooding

Ten people confirmed dead and four missing across Chiba and Kanagawa prefectures; victims caught in landslides, flooding, and vehicle submersion.
The first breaches since the lake's management began in 1969
Embankments at Inbanuma lake in Chiba failed for the first time in fifty-seven years, flooding surrounding communities.
Mark

So we're at ten dead now. That's a significant jump from where the story started. What changed between the initial reports and Wednesday?

Mimi

Three more bodies were found—one in a submerged car, two in landslides. The thing is, these weren't new deaths necessarily. They were people who had been missing, and then they were found.

Luke

Right, so we need to be careful about the language. We don't know if all ten died on the same day or over multiple days. The source tells us when they were confirmed, not when they died.

Mimi

Fair point. But what struck me was the lake breach. That's the infrastructure story underneath the human toll.

Mark

The embankments at Inbanuma. First time since 1969?

Mimi

First time since the prefectural government started managing it. Fifty-seven years of holding, and then the typhoon broke it in two places.

Luke

Do we know how much water came through? How many people were actually displaced by the flooding from those breaches?

Mimi

The source says it caused flooding in Narita and Sakae, but doesn't give numbers on displacement or the volume of water.

Mark

So that's a gap. We know it happened, we know it's historic, but we don't know the scale.

Luke

Exactly. And we still have four people missing. That number could move in either direction.

Mimi

The search is ongoing. That's the live part of the story—it's not finished yet.

Mark

Which means this isn't a final accounting. It's a snapshot from Wednesday evening.

Luke

A snapshot with real weight, but a snapshot nonetheless.

  • Ten people are confirmed dead and four remain missing as search teams move through flooded roads and landslide debris across Chiba and Kanagawa prefectures.
  • The storm struck without discrimination — a man submerged in his car on a flooded road, a woman buried by soil on the first floor of her apartment, elderly residents caught in landslides at their own homes.
  • Inbanuma lake's embankments breached for the first time in over half a century, sending floodwaters into the communities of Narita and Sakae and exposing the limits of infrastructure long taken for granted.
  • Self-Defense Forces, prefectural police, and fire departments are conducting continuous search operations across areas where the line between land and water has become dangerously unclear.
  • Authorities are deploying pumps to lower Inbanuma's water level, racing to prevent further overflow as the full scope of damage is still being assessed.

Typhoon Dujuan, the twenty-fifth storm of the season, has left ten people dead and four missing across eastern Japan's Chiba and Kanagawa prefectures, as flooding and landslides continue to claim lives in places that had long felt ordinary and safe. The storm forced a reckoning with the fragility of infrastructure: embankments around Inbanuma lake, which had held for fifty-seven years, gave way for the first time since 1969, sending water into surrounding communities. In the larger human story, this is a reminder that the boundaries we draw between safety and catastrophe are always provisional — maintained by effort, time, and a measure of fortune.

Typhoon Dujuan, the twenty-fifth storm of the season, turned eastern Japan into a landscape of water and collapse. By Wednesday evening, ten people had been confirmed dead across Chiba and Kanagawa prefectures, with four others still missing. Self-Defense Forces, police, and fire departments pressed on with search operations as the scale of destruction came into focus.

Three deaths were confirmed on Wednesday afternoon alone. In Inzai, Chiba, a man in his sixties was found submerged in a vehicle on a flooded road — spotted by a passerby who called emergency services, he was pronounced dead at hospital. In Kamogawa, a man in his seventies caught in a landslide was located and confirmed dead, while another man from the same area remained missing. A third man, in his seventies from Nagara, was believed to have been struck by a landslide while driving.

In Kanagawa, a woman in her thirties was found on the first floor of an apartment building in Miura, buried under soil and sand that had flowed into the structure. Two other women — one in her seventies from Yokosuka, one in her twenties from Miura — were still being searched for after landslides struck their homes.

The storm also exposed a rupture in the region's infrastructure that had no modern precedent. Two embankments around Inbanuma, a major lake in northern Chiba, gave way — the first breaches since the prefectural government assumed management in 1969. Floodwaters poured into the communities of Narita and Sakae. Officials moved quickly to deploy pumps and lower the lake's water level, working to prevent further overflow as rescue teams continued through terrain where the boundary between land and water had ceased to be certain.

Typhoon Dujuan, the twenty-fifth storm of the season, had turned eastern Japan into a landscape of water and collapse. By Wednesday evening, ten people were confirmed dead across Chiba and Kanagawa prefectures, with four others still missing. The Self-Defense Forces, prefectural police, and local fire departments were conducting continuous search operations as the full scope of the damage became clear.

Three of those deaths were newly confirmed on Wednesday afternoon, each one a separate catastrophe. In Inzai, Chiba, a man in his sixties was found submerged in a vehicle on a flooded road around 3:30 p.m. Tuesday. A passerby had spotted the car and called emergency services; he was pronounced dead at a hospital. In Kamogawa, also in Chiba, a man in his seventies who had gone missing in a landslide was located and confirmed dead. Another man in his sixties from the same area remained unaccounted for. A third missing person—a man in his seventies from Nagara—was believed to have been struck by a landslide while driving.

In Kanagawa, the toll included a woman in her thirties found on the first floor of an apartment building in Miura late Tuesday night. Soil and sand had flowed into the structure, burying her. Two other people—a woman in her seventies from Yokosuka and a woman in her twenties from Miura—were still being searched for after being caught in landslides at their homes.

The flooding revealed a rupture in the region's infrastructure that had never occurred in modern record. Two embankments gave way around Inbanuma, a major lake in northern Chiba, sending water into the surrounding communities of Narita and Sakae. The prefectural government confirmed these were the first breaches since it assumed management of the lake in 1969. Officials were working to lower the water level using pumps in an effort to prevent further overflow and damage.

The storm had transformed ordinary places into death traps. A car on a flooded road. A home where earth suddenly moved. A lake that had held for fifty-seven years and then did not. The search continued through the wreckage, with rescue teams moving through areas where the boundary between land and water had become uncertain.

The prefectural government confirmed the embankment breaches were the first since it began managing the lake in 1969
— Chiba prefectural government
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