The impact of earthquake on clean water demand and supply at North Lombok regency, Indonesia

Abstract

An earthquake of magnitude 6.4 Mw hit Lombok, Indonesia in July 2018, followed by another 6.9 Mw earthquake magnitude in less than a month in August 2018. The earthquake caused fatalities and damage to infrastructures, including the facilities of clean water. The main objective of this study is to know the impact of the earthquake towards clean water facilities damage, and to analyse clean water demand and supply after earthquakes in North Lombok Regency. Another purpose is to propose disaster mitigation to be implemented in the other disaster prone regions of Indonesia. The primary data were collected through field survey and questionnaire samples of 110 respondents. Secondary data regarding the damage of clean water network were collected from the Regional Water Company (PDAM) of North Lombok. The results of this study show that many clean water facilities were damaged due to earthquake. The amount of clean water demand in Lombok Island after the earthquake was decreased by 19.03%. The number of wells users after the earthquake increased from 22.73% to 57.27%. The potential groundwater for clean water in the Lombok Island is more than sufficient to fulfil the requirement of clean water during disaster. However, further studies are required to realize such idea.

Kahramanmaraş Merkezli Depremler Sonrası İçin Akademik Öneriler

“…Bölgeye hizmet veren kurumların afet öncesi yaptıkları planlamaların içine depremin ilk anında temiz içme suyunun nasıl sağlanacağı (temiz su tankerleri ya da benzer işlev görebilen büyük hacimli torba şeklinde su taşıma gereçleri, şişelenmiş sular vb. ), bunun sağlanmasında kimlerin görevli olacağı, su tankerlerini kimin kullanacağı, suyun nasıl ulaştırılacağı gibi adımlar önceden belirlendiği şek-liyle uygulanmalıdır (Arifin et al 2022;Hidayat, Triatmadja, and Supraba;Zeng, 2008).…”

“…Deprem sonrası halkın suyun ne zaman içilebilir hale geleceği konusunda uyarılması önemlidir. Suyun ne zaman içilebilir olacağı, o zamana kadar güvenli içme suyuna nasıl ulaşılabileceği konusunda toplum sık sık bilgilendirilmelidir (Hidayat et al, 2020).…”

“…Bunun için iletişim kanalları en iyi şekilde kullanılarak mümkün olan en fazla sayıda kişiye ulaşılmalıdır (Hidayat et al, 2020). Hastalık Kontrol ve Önleme Merkezi de (CDC) afet durumlarında musluk suyunun kullanımının riskli olabileceği, yerel makamların uyarılarının dikkate alınmasını bildirmektedir.…”

The synergy between government institutions in clean water preparedness for earthquake and tsunami disaster management in Banda Aceh City

“…On March 11, 2011 at 2:46 p.m. local time, Japan was rocked by an earthquake with a magnitude of 9.0 on the Richter Scale and caused a tsunami on the East coast of Japan, which disrupted water supply for 2,300,000 households from Tohoku to Kanto due to damage to the clean water distribution network [5]. Meanwhile, the earthquake that occurred on April 14, 2016 in the vicinity of Kumamoto City with a magnitude of 6.4 on the Richter Scale caused 85,000 households to not get clean water due to the cessation of clean water distribution due to 69 of the 96 water sources in Kumamoto City experiencing turbidity that cannot be controlled received [6].…”

“…According to the National Disaster Management Agency, the earthquake caused 506 people to die, 1,406 people injured, and 430,946 people to relocate. It also caused damage to the infrastructures, including water infrastructures [5].…”