Tiny tremors can’t always warn when fracking will trigger a bigger quake
A study of 70,000 earthquakes finds tiny tremors often precede larger fracking-linked quakes, offering a warning to halt fluid injection.
Author: Carolyn Gramling
‘Thunderquakes’ do more than shake the ground — they map it
Scientists used fiber-optic cables to turn “thunderquakes” into underground maps that could help reveal hidden hazards beneath cities.
These mammal ancestors birthed live young far earlier than thought
Growth rings on a fossil bone suggest at least one mammal ancestor gave birth to live young rather than laying eggs 236 million years ago.