How to Check Soil Zone: A Complete Guide to Knowing the Risks and Conditions of the Area
Know land zone At the location of residence or land to be built is very important, especially in disaster-prone countries such as Indonesia. By understanding geological conditions and potential risks such as landslides or earthquakes, people can be more prepared and wise in making decisions. This article discusses How to check the land zone, landslide prone map, earthquake zone, until Classification of land for buildings, based on official data from government agencies and credible sources.
Why is it important to check the soil zone?
Land is not just a building base. Soil conditions and types have a big influence on the safety, stability of buildings, and the economic value of the land. According to BNPB, more than 40% of Indonesia’s territory has a moderate to high level of risk of landslides. Meanwhile, BMKG Also noted that most of Indonesia’s territory is on an active seismic pathway, which means it is prone to earthquake shocks.
Some of the important reasons for checking the soil zone include:
Knowing the potential for disasters Such as landslides, floods, or earthquakes in certain areas.
Determine land suitability for the construction of houses or public facilities.
Become the basis for obtaining building permits (IMB/PKKPR) in certain areas.
support disaster preparedness and risk mitigation.
official data source for soil zone check
Before discussing practical steps, it is important to understand the official institution that provides land zoning and disaster risk data.
| Institution | Type of data provided | main use |
|---|---|---|
| BMKG | Earthquake maps, active faults, and seismic potential | Know the earthquake prone zone |
| BNPB / INARISK | Disaster risk maps (landslides, floods, earthquakes) | Analisis risiko bencana wilayah |
| Geological Agency (ESDM) | Geological map, soil structure, potential landslide | Assess the geological and soil stability |
| ATR/BPN (Bhumi) | Land Map and Spatial Zoning | see land status and land use |
| petabencana.id | Real-time disaster event map | Monitoring the actual conditions of the field |
According to BNPB, Platform Inarisk become one of the national references to assess the level of disaster risk in various parts of Indonesia. Meanwhile, BMKG Provides data on earthquakes and active faults that are publicly accessible to find out whether certain locations are in earthquake-prone routes.
How to check the land zone through the official website
Here are the steps How to check the land zone using several government official online services:
1. Through INARISK BNPB
open the page Inarisk property BNPB.
Enter the name of the area, district, or location coordinates.
Select the type of risk you want to check, such as landslide or flood.
The system will display a map with a risk classification: low, medium, or high.
According to Compass, this platform is a reference for many local governments to develop disaster risk-based spatial plans.
2. Through BMKG (Earthquake & Active Fault)
Visit the geospatial data portal BMKG.
Select Menu Earthquake and active fault maps.
Enter your location on the interactive map.
Earthquake zone information and history of seismic activity will appear.
Based on the report CNN Indonesia, BMKG has mapped more than 295 active fault segments in Indonesia, which can be used by the community to check the potential for earthquakes in their area.
3. Through Geological Agency (ESDM)
Login to the site Geological Agency.
Select part Indonesian Geological Map or Map of the ground motion vulnerability zone.
Search areas by province or district.
The full geological report can be downloaded in PDF format.
According to Tempo, maps of the Geological Agency are often used in planning for large infrastructure development because it lists rock types, soil structures, and the level of stability.
4. Through Bhumi ATR/BPN
Portal access Bhumi (National Land Agency).
Enter the address or land certificate number.
You can see the land designation according to the spatial plan.
Some areas also display soil zoning layers and space utilization permits.
as explained Second, the Bhumi feature helps the community to recognize whether the land is in residential zones, agriculture, industry, or protected areas.
5. Through petabencana.id
Open site petabencana.id.
The map will immediately display the latest disaster reports, such as floods, landslides, or earthquakes.
Use the feature Layer To see the pattern of disaster events in the surrounding area.
According to CNN Indonesia, this platform works with BNPB to provide real-time disaster information from citizen reports and official government data.
How to read and interpret land zone maps
In order for the results to be more useful to check, it is important to understand the meaning of colors and symbols on the land zone map.
| Color/Symbol | General meaning | Recommended action |
|---|---|---|
| light green | Low risk / stable soil | suitable for development with standard supervision |
| Yellow | Moderate risk | Need additional geotechnical studies |
| Red | High risk (slide-prone/earthquake) | Avoid heavy construction / do structural engineering |
| Blue | Flood or water-saturated land | Need a good drainage system |
| Fault line | active fault line | Avoid permanent buildings on this route |
According to Geological Agency, the symbols and colors follow the national geospatial standards and may vary between maps depending on the scale and purpose of the mapping.
Check soil classification for buildings
In addition to disaster risk, the community also needs to understand Classification of land for buildings. Soil types such as clay, sand, or peat have different characteristics.
clay/clay: Strong supports the load but easily expands when wet.
sandy soil: Stable but need a deep foundation so that it does not move easily.
Peat: Not recommended for heavy buildings without reinforcement.
If you are planning to build a house in a new location, you should do it Soil laboratory test. Based on the report Property compass, the cost of checking soil stability in a civil laboratory ranges from Rp. 1 million to Rp. 3 million depending on the depth and type of test.
Supporting applications and technologies
In addition to the website, there are now several Disaster and Soil Zone Check Application Easy to use on mobile, including:
INARISK PERSONAL – BNPB official application to assess location risk quickly.
BMKG Info – Provide earthquake notifications and current seismic zone maps.
Geoportal of the Ministry of Energy and Mineral Resources – Provide geological data and soil potential.
According to detiktekno, these applications are very helpful for people who want to check the risk of residential or project locations without having to download manual maps.
Further steps after checking the soil zone
After knowing the conditions and risks of the soil, there are several further steps that can be taken:
Consult a geotechnical expert If the results show moderate-high risk.
Use an earthquake-resistant or strong foundation design.
Report to the local BPBD If there is a change in soil conditions such as cracks or shifts.
Consider property insurance for disaster risk mitigation.
Monitor periodically through official applications such as BMKG and PetaDisaster.
Conclusion
Do Check the land zone Not just a formality, but a real step to ensure the safety, stability of the building, and the value of land investment. by utilizing official data sources such as BMKG, BNPB (Inarisk), Geological Agency, and ATR/BPN, the public can find out whether the territory is landslide prone zone, earthquake zone, or areas with stable soil conditions.
According to Tempo, the integration of national geospatial data continues to be improved so that the public can access disaster risk information more easily. With this understanding, everyone can play an active role in creating a safe and resilient environment for disasters.
