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Offbeat Is the Ring of Fire more active with volcanoes, earthquakes than usual?

23:10  15 may  2018
23:10  15 may  2018 Source:   accuweather.com

Volcanic ashes. Acid rain. And now massive boulders? All the calamities Hawaii is facing

  Volcanic ashes. Acid rain. And now massive boulders? All the calamities Hawaii is facing These plagues sound almost Biblical in their frequency and fury. Here are the main threats, and how dangerous they are.The volcano has already been oozing lava, which has gobbled up roads and homes and emitted dangerous gases.

Reports of earthquakes and volcano eruptions in regions along the Ring of Fire might lead some to believe that the level of activity in recent months is “In fact, the number of really large events [with a magnitude greater than 6.5] over the past two months is quite a bit below the average over the past

Reports of earthquakes and volcano eruptions in regions along the Ring of Fire might lead some to believe that the level of activity in recent months is above average.

This Oct. 1, 2017, file photo provided by GeoHazards Division, Vanuatu Meteorological and GeoHazards Department, shows an aerial view of the volcanic cone that has formed in Lake Vui near the summit of Ambae Island, Vanuatu. © Brad Scott/GeoHazards Divison, VMGD via AP, File This Oct. 1, 2017, file photo provided by GeoHazards Division, Vanuatu Meteorological and GeoHazards Department, shows an aerial view of the volcanic cone that has formed in Lake Vui near the summit of Ambae Island, Vanuatu.

Reports of earthquakes and volcano eruptions in regions along the Ring of Fire might lead some to believe that the level of activity in recent months is above average.

The approximately 25,000-mile-long, horseshoe-shaped Ring of Fire outlines the Pacific Ocean and is known for its chain of volcanoes and as the location for 90 percent of Earth's earthquakes.

Hawaii volcano raises concerns of eruptions along West Coast

  Hawaii volcano raises concerns of eruptions along West Coast As the threat of a Hawaii volcano hurling ash and boulders looms, geologic experts are also turning their attention to the other volcanoes that make up the Pacific "Ring of Fire." The horseshoe-shaped belt includes a chain of 13 volcanic peaks on the West Coast, from Washington's Mount St. Helens to California's Lassen Peak. The impact already felt by Kilauea volcano is raising fears that other parts of the West Coast could be in danger.The West Coast is home to an 800-mile (1,300-kilometer) chain of 13 volcanoes , from Washington state's Mount Baker to California's Lassen Peak. They include Mount St.

Reports of earthquakes and volcano eruptions in regions along the Ring of Fire might lead some to believe that the level of activity in recent months is above average.

Reports of earthquakes and volcano eruptions in regions along the Ring of Fire might lead some to believe that the level of activity in recent months is above "Over the past couple of months, there have been between 15 and 22 total active and between three and eight new volcanoes ," Malone said.

In February, Indonesia's Mount Sinabung volcano exploded, coating nearby villages in ash and shooting a massive ash cloud about 3 miles up into the air. Not long after the eruption, a deadly magnitude-7.5 earthquake shook Papua New Guinea with what was considered its worst quake in a century.

Experts say that these occurrences, along with a string of other recent earthquakes and volcanic activity, aren't anything out of the ordinary for the notably active Ring of Fire.

"There are always one or a few volcanoes acting up somewhere along the Ring of Fire, and there are frequent earthquakes," said Dr. Greg Valentine, geology professor and director of the University at Buffalo's Center for Geohazards Studies.

"The main thing that has changed recently is that we can measure these things all over the world and disseminate the information to the public quickly," Valentine said. Previously, he noted, only big earthquakes and volcanic eruptions were noticed and made the news.

Hawaii volcano stokes fears of West Coast eruptions

  Hawaii volcano stokes fears of West Coast eruptions The eruption of a Hawaii volcano in the Pacific "Ring of Fire" has experts warily eyeing volcanic peaks on America's West Coast that are also part of the geologically active region. The West Coast is home to an 800-mile chain of 13 volcanoes, from Washington state's Mount Baker to California's Lassen Peak. They include Mount St. Helens, whose spectacular 1980 eruption in the Pacific Northwest killed dozens of people and sent volcanic ash across the country, and massive Mount Rainier, which towers above the Seattle metro area."There's lots of anxiety out there," said Liz Westby, geologist at the U.S.

The Ring of Fire is a major area in the basin of the Pacific Ocean where many earthquakes and volcanic eruptions occur. In a large 40,000 km (25,000 mi) horseshoe shape, it is associated with a nearly continuous series of oceanic trenches, volcanic arcs, and volcanic belts and plate movements.

Reports of earthquakes and volcano eruptions in regions along the Ring of Fire might lead some to believe that the level of activity in recent months is above average. Read more …

Dr. Stephen Malone, research professor emeritus at the University of Washington, conducted several different searches of earthquake activity, checking for the number of occurrences above a threshold magnitude of 4.5 both worldwide and in the Ring of Fire, also known as the circum-Pacific tectonic belt.

Malone found no unusual number of occurrences in the previous one or two months, he told AccuWeather. "In fact, the number of really large events [with a magnitude greater than 6.5] over the past two months is quite a bit below the average over the past several years," he said.

In the case of volcanic activity, reviewing the Smithsonian/ USGS Weekly Volcanic Activity Report can be helpful, Malone recommended. A glance through this data set indicates a large variability by week and seems to show that that anywhere between 10 and 50 volcanoes are reported to be active in any given week, with anywhere between three and 11 volcanoes being newly active in that week.

It’s Not Just Hawaii: The U.S. Has 169 Volcanoes That Could Erupt

  It’s Not Just Hawaii: The U.S. Has 169 Volcanoes That Could Erupt There are potentially active volcanoes all over the West and Alaska as well as Hawaii, and about 50 are considered high priorities for monitoring. Here is where to find them.Volcanoes are full of tricks. They can build to a major eruption in a crescendo of shudders and spatters or explode with almost no warning. They can lie in wait under a magnificent snowcap, the centerpiece of a landscape of beauty that they could obliterate tomorrow, or in 10,000 years, or never again.

There are more than 450 active and dormant volcanoes located within the Ring of Fire . Many of these volcanoes were created through the tectonic The majority of Earth’s earthquakes occur in the Ring of Fire , too. These earthquakes are caused by the sudden lateral or vertical movement of rock

Earthquakes occur around the Ring of Fire on a daily basis, but the recent string of quakes and eruptions Map showing the Pacific Ring of Fire , a zone of strong seismic and volcanic activity . " Volcanic activity at each volcano is not correlated," said Yosuki Aoki, assistant professor of

"Over the past couple of months, there have been between 15 and 22 total active and between three and eight new volcanoes," Malone said. "In the cases of both earthquakes and volcanoes, most of them do occur in the Ring of Fire, as is usual."

The recent volcanic and earthquake activity occurring in Hawaii following the eruption of Kilauea have prompted fears of Ring of Fire activity along the western coast of the United States, according to a recent news report.

However, Hawaii is not part of the Ring of Fire, which occurs around the edges of the ocean crust plates, explained Valentine. "It is instead an isolated volcanic system in the middle of an ocean plate," Valentine said. "It is caused by a hot spot, a place where hot material from the mantle is rising."

The current activity in Hawaii is a continuation of an eruption that began in 1983, according to Valentine.

There may be geophysical reasons why more volcanic and earthquake activity may cluster in space and time, Malone said. "[However], with the natural variability in such activity, it is hard to be convinced that minor groupings here or there have any geophysical significance," he added.

A California volcano once obliterated a forest and propelled ash 280 miles. Experts say it offers a warning .
Lassen Peak had been rumbling for days. Glowing hot rocks bounded down the slopes. Lava was welling up into a freshly created crater. Then, on this day 103 years ago, it exploded in a way California would never forget. It created a gigantic mushroom cloud that reached an altitude of 30,000 feet, could be seen as far away as Eureka and Sacramento and sent volcanic ash as far away as 280 miles, reaching Elko, Nev.

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