Using powerful computers and a technique called template matching, scientists identify millions of previously unidentified tiny earthquakes.
Earth's steady state is warm and balmy, but half a dozen times over the past billion years, the planet developed ice caps and glaciers. Researchers have now amassed evidence that these cold snaps occurred when tectonic activity propelled continents headlong into volcanic island arcs in the tropics, uplifting ophiolites that rapidly absorbed carbon dioxide, cooling Earth. Once collisions stopped, CO2 again built up from volcanic eruptions and a runaway greenhouse effect warmed the planet.
Two moderate-sized earthquakes that struck the southern Sichuan Province of China last December and January were probably caused by nearby fracking operations, according to a new study published in Seismological Research Letters.
There have been no major ground rupturing earthquakes along California's three highest slip rate faults in the past 100 years. A new study published in Seismological Research Letters concludes that this current 'hiatus' has no precedent in the past 1000 years.
Data produced by Internet users can help to speed up the detection of earthquakes. An international team of scientists has presented a method to combine in real time data from seismic networks with information derived from users looking for earthquake information on specific websites, the smartphone app 'LastQuake' and via Twitter. This method significantly reduces the time needed to detect and locate those earthquakes that are felt by the public.
A new high-resolution map of a poorly known section of the northern San Andreas Fault reveals signs of the 1906 San Francisco earthquake, and may hold some clues as to how the fault could rupture in the future, according to a new study published in the Bulletin of the Seismological Society of America.
In a first-ever study of two of the largest deep earthquakes ever recorded in human history, FSU researchers reveal new and surprising information about our planet's mysterious, ever-changing interior.
As ancient ocean floors plunge over 1,000 km into the Earth's deep interior, they cause hot rock in the lower mantle to flow much more dynamically than previously thought, finds a new UCL-led study. The discovery answers long-standing questions on the nature and mechanisms of mantle flow in the inaccessible part of deep Earth. This is key to understanding how quickly Earth is cooling, and the dynamic evolution of our planet and others in the solar system.
In a perspective essay published this week in Nature Communications, scientists argue for more 'synthesis' research looking at the big picture of volcanology to complement myriad research efforts looking at single volcanoes.
For the first time ever, researchers have been able to peek deep into the mantle of the Earth under an ultraslow mid-ocean ridge, where they have been able to observe mantle melting and growth of the Earth's crust.