Objective: Understand the institutional mechanism of tsunami alerts in Mexico and Central America following a high-magnitude seismic event.
SEISMIC IMPACT AND TSUNAMI PROJECTION
● The bulletin originates from the Meteorological Agency of Chiapas under the STAT-MAC tsunami alert system.
● It reports an earthquake of magnitude 8.7 that occurred on July 29, 2025, near Kamchatsky, Russia.
● A tsunami is defined as a series of ocean waves generated by sudden seabed displacement, such as from seismic activity 🌊
● The system relies on seismic data, DART buoy readings, and reports from the Pacific Tsunami Warning Center.
● A tsunami alert phase is issued when wave heights may pose risk to coastal populations and infrastructure 🛑
● Forecasts predicted wave arrivals between 02:22 a.m. and 09:15 a.m. local time across Mexico and Central America 🕓
● The affected coastal sites include Ensenada, Acapulco, Puerto Madero, and multiple ports in El Salvador and Panama.
● Recommendations included avoiding the sea and maintaining distance from coastal areas, pending official updates 🧭
● This institutional protocol ensures early warning and coordinated evacuation in response to marine seismic threats 🧬
● The bulletin emphasizes that it reflects the most current available data and may be updated if necessary.
INSTITUTIONAL ACTORS AND SYSTEMS
● The bulletin is issued by the Meteorological Agency of Chiapas within the regional tsunami alert framework.
● The Pacific Tsunami Warning Center (PTWC) is defined as a global authority on tsunami detection and risk analysis 🌐
● The Mexican Navy (SEMAR) contributes to threat evaluation and public communication during tsunami alerts ⚓
● The STAT-MAC system stands for “Sistema Integral de Alerta de Tsunamis de México y América Central.”
● It coordinates national and transnational monitoring through seismic, hydrological, and satellite-based instruments 🛰️
● The earthquake’s magnitude (8.7) surpassed the institutional threshold for alert activation in the region.
● The alert involved over a dozen coastal locations, integrating both national and regional maritime safety protocols 🏖️
● All terminology, including “tsunami,” “alert phase,” and “seismic magnitude,” appears in both institutional and public notices.
● Wave arrival times are calculated from seismic origin and communicated through UTC-6 local conversions 📡
● All data are processed to ensure immediate dissemination through public agencies and emergency services.
My Diary - Leonardo Cardillo 