How Hot Was the Ocean?

In swimming season, the weather forecast often includes the next day’s wave height and water temperature, and someone is always disappointed – either the surfers hoping for big waves or the swimmers who prefer small waves and warmer water. Geoscientists who have been debating for the past half century about the conditions prevailing in Earth’s … Read more How Hot Was the Ocean?

‘Crystal clocks’ used to time magma storage before volcanic eruptions

Researchers from the University of Cambridge used volcanic minerals known as ‘crystal clocks’ to calculate how long magma can be stored in the deepest parts of volcanic systems. This is the first estimate of magma storage times near the boundary of the Earth’s crust and the mantle, called the Moho. The results are reported in … Read more ‘Crystal clocks’ used to time magma storage before volcanic eruptions

Stronger earthquakes can be induced by wastewater injected deep underground

Perhaps more critically, the research team of geoscientists found that the percentage of high-magnitude earthquakes increases with depth, and may create – although fewer in number – greater magnitude earthquakes years after injection rates decline or stop altogether. The study, led by Ryan M. Pollyea in the Virginia Tech College of Science’s Department of Geosciences, … Read more Stronger earthquakes can be induced by wastewater injected deep underground

Study reveals key factor in Himalayan earthquake rupture

The Himalayan orogenic belt produces frequent large earthquakes that impact population centers for a distance of over 2500 km. In the central region, the 2015 Gorkha earthquake in Nepal, with moment magnitude (MW) 7.8, partially ruptured a ~120-km by 80-km patch of the Main Himalayan Thrust (MHT), the detachment that separates the underthrusting Indian plate … Read more Study reveals key factor in Himalayan earthquake rupture

Mapping groundwater’s influence on the world’s oceans

Researchers at The Ohio State University have created high-resolution maps of points around the globe where groundwater meets the oceans–the first such analysis of its kind, giving important data points to communities and conservationists to help protect both drinking water and the seas. In a study published June 3 in the journal Geophysical Research Letters, the … Read more Mapping groundwater’s influence on the world’s oceans