2023-05-19 05:03:45
After an extensive analysis, the Hydrographic and Oceanographic Service of the Navy (SHOA) ruled out the possibility of a tsunami for the Chilean coasts after a magnitude 7.7 earthquake that shook this Friday the southeast of the Loyalty Islands, an archipelago of the French territory of New Caledonia, in the South Pacific.
The telluric movement was recorded 449 kilometers east of the city of Nouméa, New Caledoniain French Polynesia, and had a depth of 38 kilometers.
Notable quake, preliminary info: M 7.7 – southeast of the Loyalty Islands
— USGS Earthquakes (@USGS_Quakes) May 19, 2023
After the earthquake, Senapred reported that the characteristics of the earthquake were “under evaluation” by the Pacific Tsunami Warning Center (PTWC) and SHOA.
However, once the “modeling and analysis” process was completed, they indicated that the characteristics of the earthquake did not meet the “necessary conditions” to generate a tsunami on the Chilean coasts.
SHOA points out that the PTWC reported a new magnitude decreasing from 7.8 to 7.7 the earthquake located 449 KM E of Nouméa, New Caledonia, French Polynesia, and that after the modeling and analysis process was completed, the characteristics of the earthquake DO NOT meet the conditions …
— SENAPRED (@Senapred) May 19, 2023
The Pacific Tsunami Warning Service indicated that, according to the available data, “dangerous waves are possible on coasts within a radius of 1,000 kilometers“to the epicenter.
The waves could be between 1 and 3 meters high at their impact against the coasts of Vanuatu; and between 0.3 and 1 meter in Fiji, Kiribati and New Zealandpoints the service.
New Caledonia is located near the so-called Pacific Ring of Fire and the submarine volcanoes of the Lau Basin, which is why it regularly registers shocks of seismic origin.
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