Helicopter Survey of Damaged Areas

FLIGHT PATH

     

The roof of the molasse tanks in the Port of Taichung caved in during the earthquake (24.28N, 120.53E, 13:03:14, September 29, 1999).
Liquefaction-induced ground deformation of asphalt pavement behind quaywall in the Port of Taichung (24.29N, 120.53E, 13:03:24, September 29, 1999).

     

The container cranes in the Port of Taichung underwent no damage visible from the helicopter (24.29N, 120.51E, 13:04:34, September 29, 1999).
Large landslide in Taichai River (24.2840N, 120.73.50E, 13:14, September 29, 1999).


     

The left end of the flood control dam failed due to fault surface rupture (24.28N, 120.76E, 13:18:38, September 29, 1999).
The dam failed due to compression and vertical tectonic uplift. Most of the reservoir was uplifted by tectonic movement (24.28N, 120.77E, 13:18:44, September 29, 1999).


     

Three spans of the highway bridge collapsed due to the thrust fault surface rupture which created a waterfall slightly upstream of the bridge (24.28N, 120.76E, 13:18:07, September 29, 1999).
Two spans of the highway bridge fell down as the highway bridge was subjected to tectonic compression along its axis (24.28N, 120.77E, 13:20:10, September 29, 1999)


     

Part of the retaining wall fell down (24.28N, 120.81E, 13:22:46, September 29, 1999).
Refugee camps were erected in open fields close to collapsed and damaged buildings (24.25N, 120.83E, 13:24:21, September 29, 1999).


     

Soft-story collapse in Tungshih (24..256N, 120.8224E, 13:25, September 29, 1999).
Mulit-story building collapsed into the streets of Tungshih (24.25N, 120.824E, 13:26, September 29, 1999).


     

One of the numerous slope failures created by the 1999 Jiji, Taiwan earthquake (24.16N, 120.86E, 13:29:34, , September 29, 1999).
There were numerous slope failures in the mountains, which left visible scars in the dense vegetation (24.17N, 120.89E, 13:30:41, September 29, 1999).


     

Part of the agricultural field went downhill (24.19N, 120.99E, 13:34:59, September 29, 1999).
A slope failure reclaimed part of the road (24N, 121E, 13:35:17, September 29, 1999).


     

Rock avalanches completely buried the road and sealed the tunnel entrance (24.22N, 121.04E, 13:37:20, September 29, 1999).
Another case of rock avalanche that completely buried the road and sealed the tunnel entrance (24.22N, 121.04E, 13:37:34, September 29, 1999).


     

A large debris slide covered and blocked the road (24.23N, 121.05E, 13:38:00, September 29, 1999).
A rock slide buried completely the road (24.23N, 121.06E, 13:38:11, September 29, 1999).


     

The parking lot and foundation of the building went downhill (24.24N, 121.10E, 13:39:52, September 29, 1999).
The road was barely detectable under debris (24.24N, 121.12E, 13:41:05, September 29, 1999).


     

The earthquake almost completely buried the road (24.24N, 121.13E, 13:41:19, September 29, 1999).
The road was covered with debris (24.25N, 121.14E, 13:41:57, September 29, 1999).


     

The concrete archdam performed well in spite of the numerous rock slides that devastated the roads in its vicinity (24.26N, 121.17E, 13:43:41, September 29, 1999).
There were no apparent sign of damage to the concrete archdam in the vicinity of the destroyed roads (24.24N, 121.08E, 13:47:54, September 29, 1999).


     

No apparent sign of damage to the concrete dam (24.21N, 121.03E, 13:50:41, September 29, 1999).
Parts of the buildings along the road went downhill, leaving debris traces (24.20N, 120.80E, 14:01:43, September 29, 1999).


     

The lower floors of a tall apartment building failed, and the building leaned against adjacent buildings (24.13N, 120.72E, 14:05:15, September 29, 1999).
Failure of middle embankment in a reservoir (24.07N, 120.70E, 14:07:17, September 29, 1999).


     

Collapse of an apartment building in Tsaotun (24.06N, 120.70E, 14:09:02, September 29, 1999).
Collapse of an industrial building in Tsaotun (23.99N, 120.68E, 14:12:48, September 29, 1999).


     

In Tsaotun, tents were erected on the football field to host refugees with collapsed or damaged houses (23.98N, 120.68E, 14:12:55, September 29, 1999).
Liquefaction-induced lateral spread in the loosely consolidated river bank did not disrupt the traffic on the highway bridge (23.95N, 120.68E, 14:14:11, September 29, 1999).


     

The first floors of the buildings collapsed and the building leaned sideways (23.49N, 120.51E, 14:45:14, September 29, 1999).
The gas station was completely flattened due to the fault surface rupture (23.77N, 120.70E, 15:45:28, September 29, 1999).


     

Bridge collapse south of Mingchien on Highway 3 (23.810N 120.652E; 14:18; September 29, 1999).
Close-up of bridge collapse south of Mingchien on Highway 3 (23.810N 120.652E; 14:18; September 29, 1999).


     

Part of the retaining wall failed, leading to a partial road collapse (23.78N, 120.71E, 15:46:57, September 29, 1999).
The concrete factory silo fell down on the ground (23.83N, 120.79E, 15:53:5857, September 29, 1999).


     

The slope failure blocked the highway (23.82N, 120.85E, 15:59:38, September 29, 1999).
Devastation in dwellings (23.83N, 120.80E, 16:01:32, September 29, 1999).


     

Part of the road collapsed (23.88N, 120.76E, 16:05:20, September 29, 1999).
The building underwent some roof damage (23.89N, 120.77E, 16:07:39, September 29, 1999).


     

The thrust fault surfaced in the middle of a rice field (23.84N, 120.71E, 16:13:45, September 29, 1999).
The surface expression of the fault rupture was generally not straight but curved (23.82N, 120.71E, 16:14:27, September 29, 1999).


     

The lower floors of one of the twelve-story building collapsed and the building leaned against the other ones (23.94N, 120.57E, 16:24:22, September 29, 1999).
The seven-story building leaned sideways due to the collapse of its lower floors (23.96N, 120.57E, 16:26:13, September 29, 1999).


     

The levees cracked due to liquefaction-induced lateral spread (23.9N, 120.7E, 16:35:25, September 29, 1999).
The loosely-consolidated river bed spread laterally due to liquefaction. The bridge abutment settled and was repaired by adding asphalt ramps (23.93N, 120.68E, 16:36:25, September 29, 1999).


     

Part of the building collapsed while the rest remained apparently intact (23.96N, 120.68E, 16:38:21, September 29, 1999).
Part of the building separated from the rest, assumedly from structural failure as no ground failure could be seen from the air (23.97N, 120.69E, 16:41:41, September 29, 1999).


     

Two third of the first floor of the building collapsed (23.98N, 120.69E, 16:43:31, September 29, 1999).
Two spans of the highway bridge fell down (24.00N, 120.69E, 16:45:37, September 29, 1999).


     

The thrust fault rupture surfaced in a track field (24.04N, 120.69E, 16:47:24, Sept. 29,99)
Another view of the thrust fault surface rupture across the track field (24.04N, 120.70E, 16:47:49, September 29, 1999).


     

The fault surface rupture sheared a levee (24.04N, 120.70E, 16:47:29, September 29, 1999).
The fault surface rupture that went through the track continued north and damaged these buildings (24.0N, 120.7E, 16:47:53, September 29, 1999).


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