From September 4 to 6, observations using a portable radar interferometer (SCOPE) were conducted on Unzen-dake in Nagasaki Prefecture.
The observations were made from 2.5-5.0km away from the lava dome using man-borne method, cart-borne method, and car-borne mehod, with the objective of detecting surface deformation of the lava dome.
![](https://kazan.bosai.go.jp/wp-content/uploads/39562317c05d3dafb2ab4866d2613ec7-300x225.jpg)
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