Fire Earth

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Posts Tagged ‘supervolcano’

“Red Alert”: Italian Supervolcano May Erupt “Soon”

Posted by feww on May 16, 2017

Italy’s supervolcano at “critical stage” of eruption: “volcanic activity might be imminent”

Campi Flegrei, Italy’s only supervolcano, could erupt sooner than previously predicted, researchers say, immediately affecting more than three million people who live in the Naples area.

The volcano last erupted in 1538 but it has been restless since 1950, with local seismicity and ground uplift recorded in the 1950s, 1970s and 1980s, similar to a 100-year long episode that lead  to the last eruption.

More than 26,000 micro-earthquakes, or volcano-tectonic (VT) events, have occurred across the central zone of the caldera during the current unrest, researchers say.

“The current unrest is consistent with a reactivation of the magmatic system after 412 years and, hence, with an increase in the threat from volcanic activity to the caldera’s population of almost 360,000 people, as well as to the three million residents of Naples immediately outside its eastern margin.”

Ground movements of about 3m, the largest recorded since Roman times, have occurred since 1950.

“At Campi Flegrei itself, an additional obstacle to effective warning is a low public awareness of volcanic hazard compared with the perceived threat from microseismicity. The persistent VT seismicity in 1983–1984 damaged buildings throughout Pozzuoli and triggered the evacuation of some 40,000 people.”

They have published their findings in the nature Communications.



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M5.2 Quake Strikes near Concepción Volcano

Posted by feww on May 26, 2016

Earthquake strikes Cocibolca, Nicaragua

Centered at 11.514°N, 85.693°W, about 2.0 km south of Moyogalpa, the event occurred at a depth of 194.6km, reported USGS/EHP.

Moyogalpa is the largest village on the Ometepe Island, which is formed by Concepción and Maderas volcanoes in Lake Nicaragua (aka, Cocibolca or Granada), a massive crater left behind by an ancient supervolcano in Nicaragua. [FIRE-EARTH proprietary research material.]

Magnitude: 5.2Mw
Location: 11.514°N 85.693°W depth=194.6 km (120.9 mi)
Time: 2016-05-26 01:02:36 (UTC)
Nearby Places:

  • 2.0 km (1.2 mi) S of Moyogalpa
  • 16.0 km (9.9 mi) ENE of Rivas
  • 47.0 km (29.2 mi) SE of Nandaime
  • 54.0 km (33.6 mi) SSE of Granada
  • 91.0 km (56.5 mi) SE of Managua, Nicaragua

‘Strong’ Earthquake Rattles Central NZ

Magnitude: 4.3 [geonet]
Location: 41.52°S, 174.41°E, Cook Strait (35 km northeast of Seddon, NZ)
Depth: 11km
Date/Time: May 26, 2016 at 07:21:13UTC

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“Extreme” and “Unusual” Geothermal Activity in YNP

Posted by feww on July 12, 2014

SCENARIOS 989, 08, 07

Extreme Heat Melts Road at YNP

Intense geothermal activity at Yellowstone National Park (YNP) has created hotspots with extreme heat melting roads.

Firehole Lake Drive, which stretches for more than 3 miles between the Old Faithful geyser and Madison Junction, is closed because melting asphalt has turned it into a “soupy mess,” said a YNP spokesman, describing the melting of pavement as both “extreme” and “unusual.”

YNP, home to the Yellowstone Caldera, world’s largest “supervolcano,” covers about 2,220,000 acres with more than 10,000 thermal features and 300 geysers.

melting pavement at YNP
YNP officials have been forced to close Firehole Lake Drive as well as access to several geysers and thermal features in the park after extreme heat melted asphalt, turning it into a “soupy mess.” The hotspot reportedly extends  beyond the pavement, with parts of the ground saturated with boiling water. (Image credit: Yellowstone National Park).

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