Articles tagged "volcanoes"

colima volcano eruption february 3 2017

Impressive eruption at Mexico's Colima volcano

A large and impressive explosion occurred at Mexico's Colima volcano on Friday, February 3, 2017, producing an ash column that eventually rose up to 7.6 km (25 000 feet). The eruption occurred at 23:35 UTC (17:35 CST) and generated pyroclastic flow on the...

February 05, 2017

takawangha volcano energetic earthquake swarm january 2017

Energetic earthquake swarm under Takawangha volcano, Alaska

An energetic earthquake swarm was detected under Alaskan Takawangha volcano on January 23, 2017, prompting the Alaska Volcano Observatory to raise Aviation Color Code to Yellow and Alert Level to Advisory on January 24. The last known eruption of this volcano took...

January 25, 2017

2012__volcanoes

2012 In Review - Volcanoes

As far as the volcanic activity goes 2012 had lots of interesting moments and Pacific Ring of Fire was focus of almost all of it. 2011 finished with our eyes on the Cleveland volcano, Alaska. Cleveland sent ash 4.5 km in the sky during a single explosion event on

January 01, 2013

cleveland volcano from iss

Satellites are finding that volcanoes previously thought to be dormant are showing signs of unrest

The importance of global and frequent data coverage of volcanoes was highlighted in a recent article published in Science. Satellites are finding that volcanoes previously thought to be dormant are showing signs of unrest.As the 2010 eruption of Eyjafjallajökull in

March 30, 2012

iceland volcano lightning 4_19116_600x450

Lightning discharges in the atmosphere are familiar, but what about the ones underground?

The electrical phenomenon we call lightning is not well understood. The most common interpretation involves the circulation of water vapor up and down through clouds in a process called convection. Water is heated by the Sun until it evaporates, rising into the air...

September 12, 2011

hotspots driving tectonic plate movement_67

Hotspots driving tectonic plate movement

Plate tectonics has been on the curriculum for a while now. Most people are fairly familiar with the theory; the Earth's crust - or lithosphere - is broken up into different plates which move around on the very hot, viscous substance beneath.This movement is driven

July 08, 2011