Kasairyuu_Ryuukaiki

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Area of the large pyroclastic flow
(Period 2)

The lava

lobe #11-A grown in

slightly north-east direction

started to collapse

in large-scale on

21 May 1993.

The pyroclastic flows thereby

attacked the Senbongi area, the Shimabara City, and

brought about a large

amount of damage on that area.

It also hit

the Annaka area

on the east side.

It went over Rout 57 on 26

June and 19 July,

but additional damages

were not given because

the area had completely

been destroyed by

former debris flows.

	The distribution of pyroclastic flow deposits (mountain-side) and debris flow deposits (sea-side) They are scattered over from the east flank of Mt. Fugen to the Annaka area. On the right-hand side is the Shimabara City area. (24 Jul. 1993)	The pyroclastic flow deposits distributed over the north-east flank of Mt. Fugen and the Senbongi area (24 Jul. 1993)