Listening for underground nuclear explosions amid the constant rumble of earthquakes is like looking for a needle that may not exist in a haystack the size of a planet.
A volcanic eruption at Litli Hrutur on the Reykjanes peninsula, some 30km south of the capital Reykjavik, Iceland in July 2023.
EPA-EFE/Anton Brink
The same instruments used to measure earthquakes pick up vibrations as ocean waves put pressure on the sea floor. Four decades of data tell a story about ocean storms.
A man works his way through the rubble of buildings in Marrakesh, Morocco, after a magnitude 6.8 earthquake on Sept. 8, 2023.
Fadel Senna/AFP via Getty Images
Some people were woken up near midnight by a powerful ground-shake. But did you know earthquakes occur in the greater Melbourne region about once a month – even though we can’t always feel them?
Earth doesn’t just have an inner core. It also has an innermost inner core, a solid ball within the solid ball in the very middle of the planet.
Seismologists monitor the Earth’s activity, but they can’t predict a day, time and place for the next ‘big one.’
Christian Miranda/AFP via Getty Images
The idea that scientists could warn a region that a big quake was coming at a certain time – with enough advance notice for large-scale preparation and evacuation – remains a dream, not a reality.
Cleanup of the wreckage of a collapsed building in Diyarbakır, Turkey.
Voice of America, Public Domain via Wikimedia Commons.
A scientist who led one of the first projects to map the Hawaiian Islands’ deep volcanic plumbing explains what’s going on under the surface as Mauna Loa erupts.
A man reacts as he inspects the damage caused by Monday’s earthquake in Cianjur, West Java, Indonesia.
Tatan Syuflana/AP
Many Victorians claim their cat or dog was acting strangely before yesterday’s earthquake. And while there’s no real evidence animals can predict a quake, they may be more sensitive to very tiny ones.
A building in Melbourne damaged by the earthquake.
James Ross / AAP
A largely hidden fault beneath the Victorian Alps has triggered a magnitude 5.8 quake that was felt as far afield as Sydney, Adelaide and Launceston. Here’s what we know so far.