Earthquake: Mauritius Faces a Moderate but Real Seismic Risk
Title: Earthquake: Mauritius Faces a Moderate but Real Seismic Risk
Content: Although seismic activity is deemed low, Prime Minister Navin Ramgoolam warns that Mauritius is not free from earthquakes. Strengthening monitoring and prevention measures has been announced.
In a written response recently submitted to Parliament, Prime Minister Navin Ramgoolam indicated that Mauritius and its dependencies are not entirely safe from seismic activity. "Mauritius and its outer islands are not completely exempt from seismic risks and tremors, although the region is generally considered to have a relatively low level of seismic activity," he stated in his response to a question from Rodrigues MP Jacques Edouard.
These explanations come amid growing concerns regarding Rodrigues, which is frequently affected by earthquakes. The Prime Minister specified that monitoring is conducted continuously by meteorological services. "The meteorological services of Mauritius are the official authority responsible for close monitoring, 24/7, of earthquakes and tsunami wave progression," he affirmed.
The system relies on international cooperation, particularly with networks such as the USGS and CISN. In the event of a significant earthquake in the Indian Ocean, a specific protocol is activated. "When an earthquake with a magnitude greater than 5.0 occurs in the Indian Ocean, an alert is triggered and the National Alert Centre is activated," explained the Prime Minister. Information bulletins are then disseminated based on the distance from the epicenter and the intensity of the quake.
Since 2009, Mauritius has also participated in regional tsunami simulation exercises. The latest exercise, conducted on October 15, 2025, involved Mauritius, Rodrigues, and Agaléga, along with awareness campaigns in several coastal areas. In Rodrigues, residents have been trained on alert procedures, particularly through the use of dedicated sirens.
The Prime Minister also mentioned a recent earthquake to illustrate the responsiveness of the authorities. "At my request, a team from the meteorological services was deployed to Rodrigues" following the 5.4 magnitude quake that occurred on January 6, 2026, approximately 77 kilometers northeast of the island. This mission resulted in awareness campaigns and consultations with local authorities, schools, and economic stakeholders.
Finally, several recommendations have been made to strengthen the country’s preparedness for seismic and tsunami risks. Authorities first advocate for "regular and continuous awareness campaigns on weather and natural hazards," aiming to instill a risk culture among the population, particularly in coastal areas and schools. This approach seeks to improve reflexes in case of alerts and reduce residents' vulnerability.
Additionally, it is recommended to "establish a local network of seismic sensors and tide gauges for Mauritius, Rodrigues, and Agaléga" to enable quicker detection of tremors and more effective dissemination of alerts. Discussions are ongoing with international organizations, including UNESCO and the Intergovernmental Oceanographic Commission, to obtain technical and financial support in this strategic area.
Authorities also emphasize the need for "the implementation of an effective communication system with all stakeholders," including emergency services, local authorities, and the media, to ensure smooth and rapid information flow in crisis situations. Experiences from simulation exercises and recent events have highlighted the necessity of enhancing this coordination.
Finally, the government recommends "the development of clear protocols and standardized operating procedures (SOPs)" to improve disaster preparedness. The goal is to further structure the institutional response by clearly defining the roles and responsibilities of each actor while ensuring better anticipation of crisis scenarios. These measures are part of a broader strategy aimed at bolstering Mauritius's resilience against natural risks.