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Guerrero, Oaxaca, Mexico City: 8.6 M w: Severe / tsunami: 1776-04-21: Mexico City, Southern: VIII: Stover & Coffman 1993 uses various seismic scales. M La is a local magnitude that is equivalent to M L (Richter scale) and is used for events that occurred prior to the instrumental period.
A presidential decree founded El Observatorio Meteorológico y Astrónomico de México (The Meteorological and Astronomical Observatory of Mexico) on February 6, 1877 as part of the Geographic Exploring of the National Territory commission. By 1880, it became an independent agency located at Chapultepec Castle, then encompassing six observatories.
The National Seismological Service (Spanish: Servicio Sismológico Nacional, SSN) is a seismological organization in Mexico that studies and records earthquake activity within the country. It is part of the Geophysics Institute at the National Autonomous University of Mexico (UNAM) and is based in Mexico City.
Basic horizontal-motion seismograph. The inertia of the round weight tends to hold the pen still while the base moves back and forth. A simple seismometer, sensitive to up-down motions of the Earth, is like a weight hanging from a spring, both suspended from a frame that moves along with any motion detected.
The observatory was first established on the balcony of Chapultepec Castle in Mexico City in 1878. The observatory has been operated by the National Autonomous University of Mexico (UNAM) since 1929. [1] It was later moved to Palacio del Ex-Arzobispado in Tacubaya, then on the outskirts of the city on the west side of the Federal District.
National Weather Service (United States), known in Spanish as Servicio Nacional de Meteorología Topics referred to by the same term This disambiguation page lists articles associated with the title Servicio Meteorológico Nacional .
La Hora Nacional emerged during a decade when the Mexican government under Lázaro Cárdenas further entered the medium of broadcasting. Programming on La Hora Nacional has varied widely throughout its history, including classical music, popular music and live remotes from various locations in Mexico; it has also tended to change significantly ...
Distrito Federal (Ciudad de México) Cumbres de Majalca National Park: 1939: 47: Chihuahua: Cumbres de Monterrey National Park: 2000: 1,773: Nuevo León: Desierto del Carmen National Park: 1942: 5: Estado de México: also known as Nixcongo Desierto de los Leones National Park: 1917: 15: Distrito Federal (Ciudad de México) Dzibilchantún ...