General Discussion
Related: Editorials & Other Articles, Issue Forums, Alliance Forums, Region ForumsWorld's largest active volcano shows signs of life in Hawaii
Mauna Loa, the world's largest active volcano, has rumbled back to life in Hawaii over the past 13 months with more seismic activity than at any time since its last eruption, scientists say, while calling it too soon to predict another blast.
The volcano, which last erupted in 1975 and 1984, has been rattled since March 2013 by earthquakes of the same type and in the same location as the temblors that preceded those explosions, said Wes Thelen, a seismologist for the U.S. Geological Survey's Hawaiian Volcano Observatory.
"The earthquakes we are seeing at Mauna Loa lead us to believe that some of the same things that happened before the 1975 and 1984 eruptions are happening right now," Thelen told Reuters.
"We don't see this kind of activity outside of pre-eruptive earthquake sequences," he said.
The USGS posted a photo of Mauna Loa on Instagram on Wednesday with the caption: "After a 30-year repose, this sleeping giant may be stirring slowly to life."
http://www.ndtv.com/article/world/world-s-largest-active-volcano-shows-signs-of-life-in-hawaii-544757
------------------------
that can't be good
Hekate
(90,561 posts)... back in 1960. Visiting the Big Island is very interesting -- in many locations outside Hilo there are signs posted letting you know of steam vents. Volcano National Park itself is amazing. In some locations you can see where people have left offerings to Madame Pele, the volcano goddess -- red flowers, hot spirits (i.e. gin and the like), and copper coins.
Baclava
(12,047 posts)"The 1950 eruption was the largest and most spectacular eruption from the southwest rift zone of Mauna Loa since written records have been kept. It was especially noteworthy, for lava was erupted from a nearly continuous 20-km-long fissure along the middle portion of the rift zone. One of the significant things about this eruption is that the flows reached the sea in less than four hours."
On the night of June 1, 1950, after many residents of Ho`okena-mauka village in South Kona had already gone to bed, Mauna Loa began to erupt. Soon the roar of the lava fountains could be heard from Highway 11, 24 km (15 mi) away, as molten lava poured from fissures high on the volcano's southwest rift zone. In only three hours, an `a`a flow reached the highway and invaded the village. The streets were lit by flames as lava consumed several houses and the post office.
Thirty-five minutes later, the flow entered the ocean. By daybreak, lava flows had crossed Highway 11 in two places, cutting off the only escape route. The villagers all reached safety unharmed, but for some it was a close call.
Mauna Loa has erupted twice since 1950, with a one-day outbreak at the summit in 1975 and a three-week eruption on the northeast rift zone in April 1984.
http://hvo.wr.usgs.gov/volcanowatch/archive/2001/01_05_10.html