BRIN Warns of Megathrust Potential in Sunda Strait, Tsunami Could Threaten Jakarta Anytime

Kapanlagi.com - The National Research and Innovation Agency (BRIN) has recently issued a serious warning regarding the potential megathrust earthquake in the Sunda Strait that could occur at any time. With a magnitude that could reach 9.1, this earthquake poses a risk of triggering a massive tsunami with heights reaching 20 meters along the southern coast of Java, potentially reaching Jakarta just 2.5 hours after the earthquake occurs.

Nuraini Rahma Hanifa, a researcher from the BRIN Geological Disaster Research Center, emphasized the importance of disaster mitigation measures, both structural and non-structural. Among the proposed solutions are the construction of levees, the planting of natural vegetation such as mangroves, and the installation of wave breakers to reduce the impact of potential tsunamis.

In facing this threat, BRIN urges the community and local governments to increase vigilance and strengthen early warning systems. This warning comes after recent research indicates that a megathrust explosion in the Sunda Strait could occur without clear signs.

1. Potential Megathrust of the Sunda Strait and Its Impact

Recent research from BRIN reveals that the Sunda Strait holds the potential for a megathrust earthquake that could strike with a magnitude of 9.1. If this disaster occurs, imagine giant tsunami waves reaching heights of 20 meters hitting the southern coast of Java, while waves in the Sunda Strait could reach heights of 3-15 meters.

Jakarta is also not exempt from the threat, where the tsunami is expected to reach a height of 1.8 meters just 2.5 hours after the earthquake strikes. BRIN warns that the impact of this tsunami will not only destroy infrastructure but also threaten the lives of millions of residents in coastal areas and the capital. Therefore, preparedness is the key to minimizing the risk of casualties and more severe damage.

2. Mitigation and Preparedness Systems Needed

In facing the increasingly evident threat of natural disasters, the National Research and Innovation Agency (BRIN) encourages the development of resilient mitigation infrastructure, such as tsunami barriers and wave breakers in coastal areas. Moreover, spatial planning that considers a safe distance from the coast is highly recommended to reduce disaster impacts.

An ecosystem-based approach is also highlighted, where planting natural vegetation such as sea pandan and mangrove forests plays a crucial role in dissipating tsunami wave energy before it reaches land.

"The development of coastal forests and mitigation-based spatial planning is an essential step in preparing communities to face tsunami risks," said Nuraini Rahma Hanifa, a researcher from the Geological Disaster Research Center at BRIN, in her official statement. Additionally, strengthening early warning systems along the coast is also a primary focus for collective safety.

3. Impact on Jakarta: Tsunami in 2.5 Hours

Shocking predictions from BRIN reveal a serious threat of a tsunami that could hit Jakarta, with heights reaching 1.8 meters and arriving just 2.5 hours after a megathrust earthquake in the Sunda Strait.

As the heart of Indonesia's economy and government, Jakarta is at risk of severe damage to vital infrastructure, while the industrial area in Cilegon is also threatened in the danger zone. BRIN emphasizes that the northern coastal area of Jakarta needs extra attention in evacuation planning and the development of protective infrastructure.

Therefore, the public is urged to understand evacuation routes and regularly conduct disaster simulation drills to be prepared for the worst-case scenario.

4. Early Warning and Mitigation Technology

In disaster mitigation efforts, BRIN emphasizes the crucial need for an effective early warning system. With rapid and accurate communication, many lives can be saved when emergencies strike.

The Ministry of Communication and Information (Kominfo) is also taking action; they have launched an innovative technology-based warning system to expedite the dissemination of information to the public. Through SMS and mobile applications, the public can receive important notifications before a tsunami approaches.

"This early warning device needs to be tested regularly and accompanied by education for the public so they know how to respond quickly," said Rahma. With this step, it is hoped that preparedness in disaster-prone areas will become stronger.

5. Anticipatory Steps for the Community

Residents in coastal areas, especially in southern Java and northern Jakarta, are urged to prepare for the worst-case scenarios that could occur. The National Research and Innovation Agency (BRIN) emphasizes the importance of understanding evacuation routes and storing emergency supplies such as food, water, and medicine.

In addition, tsunami simulation training is highly recommended to enhance community preparedness. BRIN also stresses that cooperation between the government and the community is the key to reducing disaster risks that may threaten.

6. What is the Megathrust of the Sunda Strait?

Megathrust, a fault located on the ocean floor, holds tremendous potential to trigger massive earthquakes and devastating tsunamis. Among the high-risk locations in Indonesia, the Sunda Strait stands out as one of the most vulnerable points to watch out for, given the natural forces that could suddenly shake and change everything.

7. How high is the predicted tsunami?

The terrifying tsunami waves are predicted to sweep the southern coast of Java with a height reaching 20 meters, while on the coast of Jakarta, the waves are estimated to be 1.8 meters high.

8. How long will it take for the tsunami to reach Jakarta?

In about 2.5 hours after the tremor shakes the Sunda Strait, the threat of a tsunami is expected to approach, triggering alertness and tension along the coast.

9. What mitigation measures are recommended?

In an effort to strengthen disaster resilience, various strategic measures are being promoted, ranging from the construction of sturdy embankments, planting environmentally friendly mangrove trees, to enhancing more effective early warning systems. No less important, evacuation routes are also being carefully prepared in vulnerable areas to protect communities and reduce the risk of impending disasters.

(kpl/srr)