History of Disasters

Yui Landslide Control Project

Front Page＞ Yui Landslide Control Project ＞ History ＞ History of Disasters

In Yui district, Shimizu City Shizuoka Prefecture, regidents and tourists had suffered from sediment-related disasters and landslides in many times.
Twenty-six disasters are in the records, but much more disasters due to earthquakes had occurred here.
Recently, there were Terao landslide and Tanabata torrential rain disaster, etc.

History of Disasters around Yui Area

No	Year	Factor	Disaster	Location	Summary
	1662	earthquake	collapse		Mt. Satta collapsed and Satta pass was closed for a year and 2 months.
	August 1699	typhoon	high surf	Machiyahara, Kitada, Imajuku	A high surf wiped out three villages.
	October 1707	earthquake	collapse		A big earthquake. Satta pass collapsed.
	August 1730	earthquake	high surf		A high surf washed out three villages.
	November 1854	earthquake	collapse		Afterquakes continued for 15 days. Almost all hoses collapsed. Many casualties reported. Some slope failures occurred. Ground deformations, stone wall collapses, high surf. (Satta pass collapsed. A seaside uplifting occurred)
1	June 1859	heavy rain	collapse	Terao, Nishikurasawa	It began to rain on June 10th, and became heavy rain on June 23rd. Some slope failures occurred on June 25th. Many bridges washed away. Two areas of the west side of Terao Osawa River were buried. A slope failure hit main hall of Hosyaku Temple at Nishikurawsawa, and the priest's quarters was buried. Houses complete collapsed:17 Houses half collapsed:16
2	May 1868	heavy rain	collapse	terao, Nishikura	Rainfall continued for a month form April 22nd. A makeshift hall of Hosyaku Temple and 11 houses were buried by a slope failure.
3	August 1910	typhoon	landslide	Saisanji-sakanoue, Kubota	Continual rain and bad ground conditions (soften and fissures nearly 41 hectares), and 20 households evacuated and moved. (Four-day precipitation of Shizuoka Prefecture was 679mm)
	September 1917	rainstorm	high surf	Yui Town	After 11 PM, Rainstorms hit and high surfs pounded beaches, destroyed the railway on the next day. Many houses washed away, and many fishing boats outflowed. Number of fatalities:2 Number of injured:7 Houses complete collapsed:17 Houses half collapsed:16 Houses outflowed:39
	October 1918	rainstorm	high surf	Yui Town	A high surf hit again.
4	August 1922	typhoon	sedement outflow	Kurasawa, Imajuku National Route	A rainstorm hit and the railway of the west side at Yui Station was buried with sediments. And also national route was closed at Kurasawa and Imajuku area by mountain collapses.
5	July 1923	seasonal rain front	sedement outflow	Nishikurasawa River	Large sediments flooded out by heavy rain. Sediments covered the railway at the west side of Yui Station, and trains were suspended.
	September 1923	earthquake	landslide	Saisanji, Terao	Great Kanto Earthquake occurred. Landslides observed at Saisanji and Terao area.
6	September 1924	typhoon	sedement outflow	Nigorisawa, etc.	Heavy rain and flood. Piers broke at the west bank of Yui River and Wase River, and bridges lost. 6 freight cars was buried.
	August 1935	rainstorm	high surf		A big surf hit and broke the Kikukawa railway bridge at Imasyuku. The railway operation was suspended.
7	July 1938	frontal rain / typhoon	sedement outflow	Yui Station and periphery	Heavy rain. The national route was buried with sediments and closed. (Eight-day precipitation of Shizuoka Prefecture was 734mm from June 28th to July 5th)
8	July 1938	low pressure	collapse	seacoast under Mt. Satta	The slope of Mt. Satta collapsed. The national railway and the national route was buried over 50m.
9	July 1941	seasonal rain front / low pressure	collapse	Terao	Mt. Terao collapsed by heavy rain. Houses outflowed: 2 Number of fatalities:6 Number of injured:10 (Two-day precipitation of Okitsu was 287mm)
10	June 1948	seasonal rain front / low pressure	landslide	Nakanosawa	By heavy rain, a landslide occurred at middle area (300m above sea level, 100m of width) of Mt. Terao. Orchards were buried over 20ha.
	September 1948	cold front / low pressure	flood	Yui River, Yamashita seaside	Heavy rain and flood. The west bank of Yui River collapsed over 50 to 60m. Houses outflowed: 5 Boats and ships outflowed: 18 National railway and national route was closed at Yamashita beach area. Precipitation: Shizuoka Prefecture:287mm, Numazu:84mm
11	September 1948	typhoon	sedement outflow	Teraonakanosawa	By the Ione typhoon, sediments flooded at Teraonakanosawa (7,500m3) and trains were suspended for 7 hours.
12	June 1950	seasonal rain front / low pressure	landslide	Nakanosawa to Terao	Fissures occurred from Nakanosawa to Teraosawa area. Small collapses occurred frequently.
13	June 1951	seasonal rain front / low pressure	landslide	Nigorisawa, Imajuku, Terao	At Nigorisawa, Imajuku and Terao, a large landslide was observed over 6ha area.
	March 1952	low pressure	collapse	Yui Town	20 houses were inundated at Yui Town. Some collapses occurred. Yui Station was inundated and trains were suspended.
	June 1952	typhoon	high surf	Motoyama	From the Dinah typhoon, embankments of at Motoyama of Yui Town collapsed. Number of fatalities:1 Houses outflowed: 3 Amount of damage: 20 million yen
	September 1953	frontal rain / typhoon	collapse	Yui Town	By the typhoon, 40 houses were inundated at Yui Town. Mountain slope collapses occurred over 15 sites.
14	August 1955	cold front	sedement outflow	Nishikurasawa, Terao, etc.	By heavy rain, flood form Yui River brought big damages. Sediments outflowed to Nishikurasawa, Trao, and Terao bridge.
	August 1957	frontal rain / low pressure	collapse	?	By rain, some collapses occurred. Trains of the national railways were suspended temporarily.
15	April 1959	warm front / low pressure	collapse	Okitsuhora	By rain, some collapses occurred at a cave of Okitsu Town.
	August 1960	cold front / typhoon	collapse	Higashiyama	By typhoon and rain, a flood occurred at the culvert 200m west of Terao Bridge, Nakanosawa. Up-trains were suspended temporarily. A cliff failure occurred and a house was half collapsed.
16	March 1961	frontal rain / low pressure	landslide	Terao	A landslide occurred at Terao and the national railway and the national route were buried. Sediment volume: 1,200,000m3 (The land area moved was 6ha, embankments and water channel were collapsed)
17	June 1962	seasonal rain front	landslide	Higashikurasawa	By rain, a landslide occurred at south side of Mt. Ohata of Higashikurasawa, but was small impact.
	August 1962	typhoon	flood	Terao	Overflowing occurred at Teraosawa and that closed the road.
18	March 1964	low pressure	landslide	Matsugashita	A landslide occurred at Matsugashita of Yui Town over 30ha areas. They estimated that the landslide was nearly 4000m3.
19	June 1964	seasonal rain front	sedement outflow	Terao	By heavy rain, Teraosawa and Nakanosawa flooded. The national railway and the national route was buried. They were closed for 13 hours.
	June 1966	typhoon	collapse	Yui Town	By the typhoon No. 4, collapses occurred at three areas of prefectural road and town road. A landslide occurred at Gokaizaka of Knabara Town. Houses inundated: 5 (precipitation in the flat plains: 200mm to 300mm)
20	September 1968		landslide	Terasawa, Nakanodansawa	A fissure was found at a slope behind a house located between Terasawa and Nakanodansawa. Around October, the fissure expanded.
21	February 1971	low pressure	landslide	Terao, Nigorisawa	Some landslide activities was observed at Terao and Nigorisawa.
22	February 1972	low pressure	landslide	Oowada	The landslide occurred at Owada mountain district hit Imasyuku area, and the national route and the national railway were in crawl operation. (Twenty-four-hour precipitation in Shizuoka Prefecture: 245mm)
23	June 1972	heavy rain	collapse	East side mouth of Satta tunnel	By heavy rain, the east mouth of the Satta tunnel (Tomei expressway) was buried.
24	July 1972	typhoon	landslide	Imajuku	In Ashigakubo area, the national route and the national railway were in low speed operation due to landslides.
25	July 1974	seasonal rain front / typhoon	landslide	Terao, Kurasawa	Many collapses, landslides, and debris flows occurred due to the typhoon No. 8 and seasonal rain front.
26	September 1977	typhoon	collapse	Satta pass	By the typhoon No. 9, the national route 1 got damaged (slope collapse).

[Factors] ■: due to earthquakes ■: due to rain or storm [Disaster] ■: sediment related disaster