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| 福井地震 | |
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| UTC time | 1948-06-28 07:13:31 |
|---|---|
| ISC event | 897413 |
| USGS-ANSS | ComCat |
| Local date | June 28, 1948 (1948-06-28) |
| Local time | 16:13:31JST |
| Magnitude | 6.8Mw[1] |
| Depth | 10 km (6.2 mi)[1] |
| Epicenter | 36°10′N136°13′E / 36.16°N 136.22°E /36.16; 136.22[1] |
| Type | Intraplate earthquake |
| Areas affected | Japan |
| Total damage | US$1 billion[2] |
| Max. intensity | MMI IX (Violent)[2] JMA 6 (now equivalent toJMA 7) |
| Casualties | 3,769 dead[3][4][5] 22,203 injured[4][5] |
The1948 Fukui earthquake (福井地震,Fukui jishin) occurred inFukui Prefecture,Japan. The magnitude 6.8 quake struck at 4:13:31 p.m.(JDT) on June 28, 1948. The quake'shypocenter was approximately 10 km north-northeast of Fukui, in the present-day neighborhood ofMaruoka,Sakai City.[6] The strongest shaking occurred in the city ofFukui, where it was recorded as 6 (equivalent to the current 7) on theJapan Meteorological Agency seismic intensity scale.
The earthquake devastated Fukui, which was still recovering from damage sustained duringWWII air raids in July 1945. Damage across the entire Fukuiheiya flood plain into neighboring Ishikawa prefecture. Official casualty estimates totaled 3,769[7] dead and 22,000 wounded, with more than 36,000 buildings completely destroyed.[8] In the Kanazugocho district (modern-day easternAwara);Maruoka andHarue; andYoshida District, nearly every building was leveled. In central Fukui city, which was adjacent to the epicenter, approximately 79% of structures were completely destroyed, while the overall destruction rate across the Fukuiheiya floodplain surpassed 60%. Fires caused by the earthquake compounded the destruction.
The quake also seriously damaged the embankments of theKuzuryū River. Record-setting rain in the weeks following the quake subsequently caused the levees to burst, leading to massive flooding.
Although three years of war damage, earthquake damage, fire damage, and flood damage reduced the city to ashes, it continued to rebuild. In honor of the citizens' resilience, the Fukui citizen's charter proclaims Fukui "City of thePhoenix."
This earthquake was caused by a previously unknownstrike-slip fault. The fault stretches fromKanazu toFukui,[9] with a length of 25 km (16 mi), and was later named the "Fukui Earthquake Fault". Shaking was felt as far asMito in the east, andSaga in the west.
Damage was most reported in the Fukui plain, where the building collapse rate was more than 60%, since shaking became larger due to it being analluvial plain, and many of the buildings were just built after the war and a little unstable.
As many people were cooking when the earthquake struck, many fires spread after the quake. Since the roads and the waterworks were damaged it took five days to put out the fires and so the fires caused devastating damage.
Even though the Daiwa Department Store collapsed, the Fukui Bank building right next to it had no significant damage. It is thought to have been because the Fukui Bank building had about 500deep foundation pipes 10 meters deep in the ground.
Almost all of the farmers' houses in the epicenter area collapsed, but most of the farmers were outside so there were not many casualties.
| Prefecture | Casualties | Damaged houses | |||
|---|---|---|---|---|---|
| Deaths | Injuries | Collapsed | Half collapsed | Burned | |
| Fukui | 3,728 | 21,750 | 35,382 | 10,542 | 3,851 |
| Ishikawa | 41 | 453 | 802 | 1,274 | 0 |
| Total | 3,769 | 22,203 | 36,184 | 11,816 | 3,851 |
| Total damage in Fukui City | |
|---|---|
| Dead | 930 |
| Collapsed buildings | 12,270 |
| Half collapsed buildings | 3,158 |
| Burnt buildings | 2,069 |
| Building collapse rate | 79.0% |
| Fires | 24 |
| Burnt area | 2,120,600 m2 |
At the time, it was the deadliestearthquake after thePacific War (now superseded by theGreat Hanshin earthquake and theTōhoku earthquake and tsunami). This earthquake killed 3769 people, mainly inSakai City (then part of Fukui City), where the death rate was more than 1%.
{{cite web}}: CS1 maint: archived copy as title (link)Authority control databases: National |
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