Seismologists at Caltech analyzed 10 years' worth of slow-slip events that result from episodic fault slip, like regular earthquakes, but only produce barely perceptible quakes in the Cascadia region of the Pacific Northwest. They found that this particular type…
Most volcanic eruptions occur at the bottom of the oceans, and modern oceanography has shown that submarine volcanism not only deposits lava but also emits large amounts of volcanic ash. For the first time, an international research group explained the mechanisms…
A team of geochemists based at the Florida State University-headquartered National High Magnetic Field Laboratory has discovered significant clues about the sections of the crust that vanishes back into the Earth. The researchers provided new evidence showing that…
The impact of NASA's Double Asteroid Redirection Test (DART) mission– which aims to nudge the orbit of its target for planetary defense purposes– may produce the first meteor shower from human activities in space, according to research published in The…
A new study published in Nature Communications shows that previous changes in the direction of Earth's magnetic field reached rates that are up to 10 times larger than the fastest currently reported variations of up to one degree per year. The authors combined…
Astronomers have discovered the absence of a massive unstable star in the Kinman Dwarf galaxy using ESO's Very Large Telescope (VLT). One explanation offered is the end of a luminous blue variable (LBV) eruption of a surviving star, with a mild drop in…
A new study suggests that the massive Okmok volcano eruption in Alaska in 43 B.C.E. may have caused a nearly two-decade power struggle that led to the fall of the Roman Republic and the rise of the Roman Empire. According to records, the period was marked with…
In a new study, an international team of scientists provided the first conclusive evidence directly correlating deep Earth's water cycles, magmatic productivity, and earthquake activity. Water and other volatiles that are cycled through the deep Earth have…
The Sun's magnetic activity fluctuates in a rhythm of about 11 years, which is reflected in the frequency of sunspots. During solar maximum, huge sunspots and active regions appear on the surface of the star. Scientists have long been puzzled over the reason…
The eruption in Japan's Asamayama volcano in the year 1108 may have led to an extreme weather event that triggered severe famine in Europe, new research revealed. The study is based in part on the research team's analysis of ice cores extracted from glaciers…
