Geo-disasters induced by the recent earthquakes in Japan and Indonesia

Masakatsu Miyajima,Yuko Serikawa,Hendra Setiawan

doi:10.1051/matecconf/202033102001

Masakatsu Miyajima, Yuko Serikawa + Show 1 more

Open Access

https://doi.org/10.1051/matecconf/202033102001

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Abstract

This paper is focusing on the geo-disasters induced by the 2018 Hokkaido Iburi-tobu earthquake in Japan and the 2018 Sulawesi earthquake in Indonesia. The Hokkaido Iburi-tobu earthquake occurred at east of Iburi region in Hokkaido, Japan on September 6th, 2018. Tremendous number of landslides occurred in the mountain areas at Iburi region. Uplift and sinking of road and inclination of houses were caused by liquefaction in the south eastern part of Sapporo city. The Sulawesi earthquake happened at Central Sulawesi Province, Indonesia on September 28th 2018. The ground displacement triggered by the fault movement caused damage to roads and houses. The large scale ground flows induced by liquefaction occurred in some different sites. This paper reviews the damage induced by the geo-disasters and considers the lessoned learnt from the damaging earthquakes happened in 2018.

Highlights

Many damaging earthquakes have occurred in the world in every year
This paper reviews the damage induced by the geo-disasters and considers the lessoned learnt from the damaging earthquakes happened in 2018
The large ground displacements seem to be induced by the fault movement

Summary

Introduction

Many damaging earthquakes have occurred in the world in every year. Many of them occurred in south eastern Asia. The damaging earthquake caused severe geo-disasters in Japan and Indonesia in 2018. This paper is focusing on the geo-disasters induced by the 2018 Sulawesi earthquake in Indonesia and the 2018 Hokkaido Iburi-tobu earthquake in Japan. Surface faulting caused some damage to infrastructures such as road, houses, etc. Severe liquefaction caused enormous amount of damaged houses in Japan and Indonesia. Large scale ground flows occurred and many persons were killed in Indonesia. This paper reviews the damage induced by the geo-disasters and considers the lessoned learnt from the damaging earthquakes happened in 2018

Outline of earthquake and damage

Landslide

The Sulawesi Earthquake in Indonesia

Findings

Conclusions