Indonesia Energy Ministry: Indonesia’s Active Fault Map Launched, Geological Disaster Mitigation Solution

Indonesia is an archipelagic country located within the geotectonic sphere of subduction and collision between active tectonic plates (ocean and continent). These conditions make the territory of Indonesia prone to disasters and the risk of earthquake shocks and volcanic eruptions that threaten the survival of life and development on it. For this reason, the existence of the Indonesian Active Fault Map is the answer to the solution for mitigating the threat of geological disasters.

“Indonesia’s Active Fault Map was prepared to meet the needs for data and information on earthquake disasters originating from active faults in the form of an active fault map with a scale of 1: 5,000,000,” said Head of the Geological Agency of the Ministry of Energy and Mineral Resources (ESDM) Eko Budi Lelono at the launch. Indonesia’s Active Fault Map, Friday (13/8)

The map can be used as a reference in analyzing the potential for disasters in a probabilistic and deterministic manner to calculate the potential risk of an earthquake that will occur by tectonic experts and planning experts.

The Geological Survey Center, the Geological Agency has carried out a seismotectonic mapping, which is a map that is the forerunner of an active fault map that began in 1978. This seismotectonic mapping has produced at least 17 seismotectonic maps of a scale of 1: 100,000 and 25 sheets of seismotectonic maps of a scale of 1: 250,000.

Head of the Geological Survey Center, the Geological Agency of the Ministry of Energy and Mineral Resources, Hendra Gunawan, added that the Geological Survey Center is the guardian of Indonesia’s active fault maps based on Presidential Regulation Number 23 of 2021 and Decree of the Head of the Geospatial Information Agency (BIG) Number 27 of 2019.

Currently, the Geological Survey Center has completed a map of Indonesia’s 1:5 million scale active fault which provides general information about the presence of active and potentially active faults. The aim is to increase awareness of potential earthquake disasters, especially active fault earthquakes.

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“PSG will complete an Active Fault Map in digital form in 2021 – 2025 for a scale of 1:1 million on large islands and in more detail on disaster-prone cities,” said Hendra.

The Active Fault Map provides basic data and information that geologists, geophysicists, and civil engineers and planners can use to evaluate the origins of earthquakes and the potential disasters they cause.

This map of active faults in Indonesia with a scale of 1: 5,000,000 is still regional in nature, which shows the distribution of active faults. This map is general information about the presence of active faults and potentially active to increase awareness of potential earthquake disasters, especially active fault earthquakes.