Seismicity in Mexico is a constant This has put both authorities and the population on alert. The country is located on one of the most active tectonic zones on the planet, which explains the frequency of earthquakes in different regions. Several low and moderate magnitude earthquakes have been reported in recent days., but fortunately without significant damage.
In the week of June 15-20, 2025, different Mexican entities have experienced tremors, particularly those that occurred in Oaxaca, Chiapas, and Coahuila. Although these are common occurrences, each event raises questions about safety, seismic alerts, and the best way to respond to these tremors.
Latest earthquakes recorded in Mexico
The National Seismological Service (SSN) notified the June 16, a magnitude 4.7 earthquake struck Salina Cruz, Oaxaca. at 15:38 p.m. The epicenter was located 91 kilometers south of the city at a depth of 15 kilometers. That same day, at 16:41 p.m., another earthquake was also detected in Salina Cruz, this time with a magnitude of magnitude 4.0In both cases, authorities reported no major damage or injuries.
En ChiapasOn June 20, a crash was recorded 4.0 magnitude earthquake near Mapastepec at a depth of 77.4 kilometers. According to SSN data, the event's epicenter was 50 kilometers southwest of the municipality.
Furthermore, in Coahuila Another tremor was reported magnitude 4.0 On June 15 near San Buenaventura, the quake reached a depth of 10 kilometers. In all these cases, the earthquake was only faintly felt, and no emergency warning was issued for damage.
Why are there so many earthquakes in Mexico?
The high seismic activity in Mexico is due to its geographical position, since it is located on the convergence of the North American, Caribbean, Cocos, Pacific and Rivera tectonic plates. These constant movements on the plates generate friction and release energy. in the form of seismic waves, which translates into tremors of varying intensity.
Most earthquakes that occur in Mexico tend to be low-magnitude, so they often go unnoticed by the population. However, history has shown that the country can be affected by large earthquakes with significant consequences for infrastructure and communities.
Is it possible to predict earthquakes?
Currently, there is no technology that allows us to accurately predict when and where an earthquake will occur.International and national organizations agree that, despite advances in monitoring and studying faults, earthquake prediction remains a goal far from being achieved. Therefore, Preparation and prevention are the best tools to mitigate risk.
In Mexico, The seismic alert is activated only when the sensors detect a potentially destructive tremor. in the areas covered by the SASMEX system. Not all movements trigger this alarm, as it depends on the magnitude and location of the epicenter relative to the protected cities.
Recommendations in case of an earthquake
- Keep calm and seek protection under a sturdy piece of furniture or next to a load-bearing wall.
- Stay away from windows, falling objects, and open areas if it is abroad.
- Have an emergency backpack ready with basic supplies, documents, water and a flashlight.
- Avoid using the elevator and do not stay near facades, poles or electric cables.
- If you are driving, Stop the vehicle and move away from bridges and overpasses.
After an earthquake, it is important to check the condition of electrical and gas installations before using them again, and always follow the instructions of official agencies and emergency services.
The importance of seismic alerts in Mexico
El Mexican seismic alert system It has a network of more than 90 sensors distributed throughout the most active area of the country, mainly on the Pacific coast. When a potentially dangerous movement is detected, the system emits a warning signal. to cities with coverage, providing a few seconds of reaction time to take cover.
This coverage extends to major cities such as Mexico City, Guadalajara, Acapulco, Puebla, Oaxaca, and Morelia, among others. However, if the epicenter is located outside the protected area or too close, the alert may not sound or may sound shortly before the arrival of the seismic waves.
Authorities and experts remind that the culture of prevention and the periodic implementation of drills are essential to reduce risks and save lives in the event of a major earthquake.
A review of recent earthquakes in Mexico underscores the importance of being well-informed and prepared. Although most tremors have been minor, historical experience advises not to let down one's guard and always have an emergency plan in place. Alerts, seismic education, and citizen collaboration are the main barriers to combating an unpredictable but inevitable natural phenomenon.
