The earliest scientists first observed the waves that earthquakes produce before they could accurately describe the nature of earthquakes or their fundamental causes, as discussed in Lessons 1–5.

A landslide in Greenland caused a giant wave and a mysterious 92-second seismic hum that traveled around the planet for nine ...

In May 1997, a large earthquake shook the Kermadec Islands region in the South Pacific Ocean. A little over 20 years later, in September 2018, a second big earthquake hit the same location, its waves ...

Sound waves traveling thousands of kilometers through the ocean may help scientists monitor climate change. As greenhouse gas emissions warm the planet, the ocean is absorbing vast amounts of that ...

Richard Aster receives funding from the U.S. National Science Foundation. As oceans waves rise and fall, they apply forces to the sea floor below and generate seismic waves. These seismic waves are so ...

Geophysics has shown that precise measurements and a little modeling can perform wonders, like showing us the detailed structure of the Earth’s interior despite the fact that it is inaccessibly buried ...

For 20 minutes on Nov. 11, 2018, strange seismic waves reverberated around the Earth for nearly 11,000 miles — and we have no idea what they were. No one felt them; nothing was destroyed by them; if ...

On the morning of November 11, just before 9:30 UT, a mysterious rumble rolled around the world. The seismic waves began roughly 15 miles off the shores of Mayotte, a French island sandwiched between ...