A powerful earthquake with a magnitude of 7.2 struck under the Celebes Sea off the southern Philippines on Tuesday but was far too deep to cause any damage and casualties or generate a tsunami.
Holidaymakers concerned about fresh volcanic eruptions causing flight-disrupting ash clouds might be reassured by a study setting out the first reliable estimates of their frequency.
Jupiter's moon Io continues to be the most volcanically active body in the solar system, as documented by the longest series of frequent, high-resolution observations of the moon's thermal emission ever obtained.
On September 29, 2016, the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA's Aqua satellite captured this false-color image (MODIS bands 7-2-1) showing volcanic activity in the South Sandwich Islands.
Iceland's Meteorological Office has raised the aviation alert level around the Katla volcano because of seismic activity.
Scientists have developed a method to estimate weakness in the Earth's outer layers which will help explain and predict volcanic activity and earthquakes.
The EU GEOPLATE project uses magnetic sensing techniques to expand our understanding of the earth's tectonic past, while also offering tools to help locate future natural resources.
Ahuna Mons is a volcano that rises 13,000 feet high and spreads 11 miles wide at its base. This would be impressive for a volcano on Earth. But Ahuna Mons stands on Ceres, a dwarf planet less than 600 miles wide that orbits ...
Iceland's Meteorological Office says two earthquakes early Monday rocked the caldera of Katla, one of the country's largest volcanos.