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Threat of powerful eruption at Kuchinoerabu volcano prompts evacuations, Japan
The Japan Meteorological Agency raised the alert level for the Kuchinoerabu volcano in Kagoshima Prefecture from 2 to second highest level of 4 at 01:30 UTC (10:30 JST) on Wednesday, August 15, 2018. This volcano is located on the Kuchinoerabu Island in southwestern Japan, some 1 000 km (620 miles) SW of Tokyo. Its last eruption took place in 2015. The decision to raise the alert was made due to 26 volcanic earthquakes detected within just a few hours. The largest was M1.9 at a depth of 5 km (3.1 miles) in almost the same location as a similar pre-eruption quake that struck 3 years ago. JMA warned that eruption could be powerful enough to cause serious damage to the island's residential area. Level 4 alert means that elderly and disabled people should be evacuated and everyone else should prepare to evacuate. This is the first such warning for this volcano since May 2015 when a powerful eruption forced …

Very low tide along the coast of Ecuador during Earth's perihelion

Very low tide along the coast of Ecuador during Earth's perihelion

A very low tide was observed along the coast of Ecuador as the Earth reached perihelion on January 3, 2018. The combination of oceanographic and atmospheric factors contributed to a significant decrease in sea level, meaning that between January 2 and 5 there was pronounced sea retreat that is not that usual in some parts of the coast.
"The low tide event occurred throughout the coast of Ecuador," the Oceanographic Institute of Ecuadorian Navy (INOCAR) said. "However, it has been more evident on beaches that have a steep slope, such as Santa Rosa and Bahía de Caráquez."
For the second consecutive day, the fishermen preferred to maintain their boats and avoid going out into the sea due to dangerously strong winds and very low tide, El Universo reported January 5. 
In Santa Elena, specifically in the port of Santa Rosa (Salinas), the sea retreated some 120 meters (390 feet), leaving dozens of boats stranded amid algae, plastic remains, and other trash.
The strongest sea retreat, some 200 m (650 feet) in places, took place on January 3, coinciding with Earth's perihelion, its closest approach to the Sun. 
"All the boats were dry," fishermen Javier Benitez told El Universo. "There were waves of 1.5 to 2 m (5 - 6.5 feet) that day and the wind was so strong that many boats had to return to the port," he said.
Aguajes and lunar phases 2018
Calendar of Syzygy tides (know as Aguajes in Ecuador) and moon phases. Credit: INOCAR
Check out this page if you want to learn more about tides and water levels.
Earth's next perihelion will take place on January 3, 2019. 
Featured image: Very low tide in Ecuador on January 4, 2018.

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