During this period, expansive waves reached the coast of Mexico after the explosion of the volcano in Tonga

A plume rises over Tonga as the Hunga Tonga-Hunga Ha’apai underwater volcano erupted in this satellite image taken by Himawari-8, a Japanese weather satellite operated by the Japan Meteorological Agency, on January 15, 2022 and released by the National Institute of Information and Communications Technology (NICT) Photo: (REUTERS)

The eruption of the submarine volcano on the island of Tonga in the Pacific caused changes in sea level in Mexicostrong or unusual currents that persisted for several hours in coastal areas of Colima, Guerrero and Baja California, principally.

On Saturday, January 15, 2022 at 04:26 UTC (22:26 on Friday, January 14, Central Mexico CST), the underwater volcano Hunga Tonga-Hunga Ha´apai, located 30 kilometers southeast of the island of Fonuafoʻou, Tonga had a violent eruption which caused a displacement of the water column located above it, which caused a tsunami that affected the Pacific Ocean.

The National Tide Service currently operates 27 tide stations, of which 12 are located on the Mexican Pacific coast, reported that sea level is permanently monitored, and variations caused by this tsunami have been detected in various states.

So far, the maximum amplitude that has been recorded is 2,053 meters at the Manzanillo station, Colima.. From there they follow Zihuatanejo with 1.19 meters, Acapulco, Huatulco, Salina Cruz and Puerto Chiapas with about 95 cm, Puerto Ángel with 75 cm, Puerto Vallarta with 65 cm, Lázaro Cárdenas with 44 cm and Mazatlán with 43 cm.

Photo: (National Mareographic Service)
Photo: (National Mareographic Service)

13 hours it took to reach Mexican shores

The maritime shock waves took around 13 hours to reach the Mexican coast., when the first movements were registered shortly after 11 am on Saturday.

The first station to record the event was the Mazatlán, Sinaloa station at 10:50 in the morningMinutes later, the others began to record various movements of varying intensity.

Manzanillo, Colima, which is also the station that recorded the greatest amplitude of the tsunami, which was approximately 2 meters, around 17:56 UTC (11:56 central Mexico CST).


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