How much water was released from the collapsed barrier lake?

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Approximately 60 Million Tonnes of Water Released from Collapsed Barrier Lake

Around 60 million tonnes of water were released from a barrier lake in Taiwan's eastern Hualien county following its collapse during a typhoon. The barrier lake itself had contained an estimated 91 million tonnes of water before it breached. This deluge significantly impacted the township of Guangfu, contributing to widespread flooding and casualties.
Lake Capacity and Overflow Volume

The barrier lake, formed by landslides from prior heavy rainfall, was estimated by the government to hold approximately 91 million tonnes of water. This volume is comparable to a major reservoir. The overflow event saw about 60 million tonnes of this water released, inundating the surrounding areas.
Typhoon's Rainfall Contribution

The collapse occurred as Taiwan experienced heavy rainfall from the outer rim of a typhoon. The eastern part of the island received approximately 70cm of rain. This intense precipitation likely contributed to the instability of the barrier lake and the subsequent overflow.
Impact on Guangfu Township

The released water caused a wall of water to surge into Guangfu township. All 14 reported deaths and 124 missing individuals were located in this town. The flooding inundated homes, broke a bridge, and left mud and rocks scattered throughout the area, creating a chaotic situation for residents and rescue efforts.

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How much water was released from the collapsed barrier lake?

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