1999 Jiji earthquake

1999 Jiji earthquake
(921 earthquake)
File:Earthquake- road crack.jpg
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UTC time1999-09-20 17:47:16
ISC eventTemplate:Eq-isc-link
USGS-ANSSComCat
Local date21 September 1999
Local time01:47:12 local time
Magnitude7.6–7.7 Template:M / 7.3 Template:M
Depth33 km (20.5 mi)
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Areas affectedTaiwan
Peak acceleration1.92 g[1]
Peak velocity184.58 cm/s
Casualties2,415 killed
29 missing
11,305 injured
51,711 buildings destroyed
53,768 buildings damaged

Chi-Chi earthquake,[2] also known as the 921 earthquake,[3] was an earthquake in central Taiwan. The earthquake happened on September 21, 1999 at 1:47 am local time (September 20 17:47 GMT). It measured 7.3 on the Richter scale. The epicentre of the earthquake was at Lua error: callParserFunction: function "#coordinates" was not found. in Chichi Township of Nantou County, about 12.5 km west of the Sun Moon Lake. The depth of the epicenter was 7.0 km.

Damages

The earthquake caused much damage, according to the National Fire Agency, Ministry of the Interior R.O.C. This damage included:

  • 2,416 people died or were never found
  • 11,441 people were badly hurt
  • US$9.2 billion worth of damage
  • 44,338 houses were completely destroyed
  • 41,336 houses were badly damaged

The earthquake continued to shake Taiwan throughout the night. People tell stories about a house that was not destroyed but moved by the earthquake from one county to another. The story says that because of this, the owners of the house had to change their address.

Chelungpu fault

The epicenter of the earthquake was Chichi Township. The 921 Earthquake happened along the Chelungpu fault line in western part of the island of Taiwan. The fault is located along the foothills of the Central Mountains in Nantou and Taichung counties. Some sections of land near the fault were changed in elevation by as much as 7 meters (23 feet). Near the northern end of the fault line, a 7-meter tall waterfall was created by the earthquake. In the middle-western part of the island, bridges were destroyed. This stopped traffic for weeks.

In Wufeng, a village in southern Taichung County, the damage was very bad. The village's Guangfu High School was located on the fault line. It was badly damaged by the quake. Today the high school is the site of the National Museum of Natural Science's 921 Earthquake Museum of Taiwan.

Notes

  1. "M 7.7 - Taiwan". earthquake.usgs.gov. Retrieved 7 February 2018.
  2. Chi-Chi earthquake: Script error: No such module "Zh".
  3. 921 earthquake: Script error: No such module "Zh".

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