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Very shallow M6.6 earthquake hits Ogasawara region, Japan
A very shallow earthquake registered by the JMA as M6.6 hit Japanese Ogasawara Archipelago at 18:22 UTC (03:22 JST) on August 16, 2018. The USGS is reporting M6.4 at a depth of 11.5 km (7.1 miles) at 18:21 and M6.0 at 18:22 UTC. EMSC is reporting M6.4 and M5.9 at a depth of 10 km (6.2 miles). According to the USGS, the epicenter was located 251 km (156 miles) SE of Iwo Jima, 420.9 km (261.5 miles) SSW of Ogasawara, Japan and 945.4 km (587.5 miles) NNW of Saipan, Northen Mariana Islands. There are no people living within 100 km (62 miles). Although there may be slight sea-level changes in coastal regions, this earthquake has caused no damage to Japan, JMA said. The closest volcanoes are Minami-Hiyoshi and Nikko, both submarine. They have located roughly 100 km (62 miles) W of the epicenter. Periodic water discoloration and water-spouting have been reported over Minami-Hiyoshi since 1975 when detonations and an explosion were als…

Mysterious ash found floating on waters off Sweden is from an underwater volcanic eruption


On Monday, a large amount of ash like mud was reported along the Swedish west coast. According to coast guards, the strange substance is drifting somewhere between Norway, Sweden, and Denmark due to weather and currents. A geologist was asked to take a look at it, and the best-fit guesses until the laboratory results are in, is that a methane deposit has been heated causing a mudcano to form and erupt under water.

It was at lunchtime on Monday when the Coast Guard started receiving calls from baffled boaters and residents reporting a strange substance – similar to oil, but neither sticky nor smelly – covering the surface of the sea along the west coast of Sweden and now somewhere between Norway, Sweden, and Denmark.
When officials reached the location of the strange phenomenon, they find out it wasn’t oil and started wondering what it could be. Their first guess: something of biological nature, like an algae bloom, bacteria falling from the sky or a similar phenomenon. But officials have then excluded this hypothesis too. They haven’t found any biological structures such as cells or chlorophyll.
Looking at the material more closely, officials found out it was ash, but a very sticky ash looking like mud. They then contacted a well-known volcanologist and asked him about his hypothesis and here is his answer:
Today a large amount of ash like mud has floated into the Swedish west coast, somewhere between Norway, Sweden, and Denmark. I was asked to take a look at it, and the best-fit guesses until the laboratory results are in, is that a methane deposit has been heated causing a mudcano to form and erupt under water.
Probably another unknown underwater volcano.

Meanwhile, samples have been taken and were sent to a lab for analysis to testify the geological hypothesis.

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