It’s core to life on Earth.
The Earth's core is cooling down, and one day it will be completely solid – when that happens, Earth might look a lot like Mars.
The Cuadrilla fracking site in Preston New Road, Lancashire.
Although fracking has been given the green light it's still not known how common felt earthquakes may become and if communities are willing to accept them
In this Oct. 10, 2018, photo, a man walks past a boat swept ashore by a tsunami in Wani village on the outskirt of Palu, Central Sulawesi, Indonesia. The 7.5 magnitude earthquake on Sept. 28, triggered a tsunami and mudslides.
(AP Photo/Dita Alangkara, File)
Last month's earthquake in Sulawesi, Indonesia was large, but not huge. It was the aftereffects that made it so devastating.
Rescue team members rest near an earthquake-devastated area during a search for victims under the ruins of collapsed buildings in Balaroa, Palu city, Central Sulawesi.
Developed countries focus on technology, but lullabies can sometimes have a greater effect.
Moments after an earthquake in Palu, Friday 29 September 2018, thousands of houses and people in the area were swallowed by the ground because of liquefaction.
While the term liquafaction has only been widely discussed in Indonesia and the world in the past week, Palu's susceptibility to liquefy had already been studied.
The early warning system installed after the 2004 Boxing Day tsunami hasn't lived up to expectations.
The flooded area in Sriwulan, located near the border of Semarang and Demak, Central Java.
Effective disaster management is possible with the support from the public.
A general view of a tsunami devastated mosque in Talise beach, Palu, Central Sulawesi, Indonesia, 30 September 2018.
Indonesia's tsunami early warning system failed to provide adequate warnings to people in Palu.
A combination of tectonic plates, geography and poor infrastructure make Indonesia vulnerable to deadly tsunamis.
The Indonesian Red Cross pull the body of a tsunami victim from a collapsed house at Talise beach in Palu, central Sulawesi, Indonesia.
Local knowledge and awareness of the risks of tsunamis can better prepare people when disaster strikes.
A sign posted in New Bern, North Carolina after Hurricane Florence.
AP Photo/Gary D Robertson
Donations to relief efforts tend to dry up within a few months.
Storage site for wastewater from hydraulic fracturing operations just outside Reno, Texas.
AP Photo/LM Otero
New research shows that injecting wastewater deep underground can cause earthquakes far from the injection site. It also raises questions about which rock layers are the safest injection targets.
Syrian airstrike survivors.
Warning Syrians of approaching airstrikes via social media is helping save lives.
Collapsed building after 2018 Lombok earthquake.
Researchers are using a rubber-soil mixture to make earthquake-proof foundations.
NWCG / HANDOUT
Wildfires in the US have drawn thousands of firefighters. Meanwhile, Indonesia is struggling to rebuild in the wake of earthquakes. What's the difference? Poverty and access to resources.
A tectonic earthquake doesn't always trigger eruptions of nearby volcanoes. If an eruption happens, the volcano must already have been in a critical condition.
Thousands of houses has been destroyed by earthquakes in Indonesia.
As Indonesia reels from two deadly earthquakes, it's time to rebuild smarter and stronger.
Shallow but powerful earthquakes on Lombok have resulted in around 100 deaths and destroyed buildings.
Caught in the middle: Lombok and Bali are exposed to earthquake and tsunamis risk due to a tectonic plate boundary to the south, but also a unique zone of activity that thrusts to the north.
What’s going on 150 kilometers below the Earth’s surface?
Good Free Photos
A new array of seismometers provides a glimpse of what's happening deep beneath this geologic fault. New data help explain why the north and south of the region are more seismically active than the middle.
Hurricane Harvey approaching the Texas Gulf Coast in August 2017.
NOAA/Handout via Reuters
Large-scale emergencies can be a strain, even in one of the world's richest countries. Population growth, income inequality and fragile supply chains may make the problem worse.