If you live in Berkeley, Oakland, Fremont, Hayward or anywhere nearby, be prepared.
In 2017, a magnitude 7.1 earthquake struck Mexico City, toppling 40 buildings and killing over 300 people.
Mapping where thick layers of rock are full of pressurized water can help scientists understand what's happening beneath the surface.
Nearly 7,000 earthquakes occurred between 2014 and 2016.
"Yellowstone is just a very swarmy place."
"We're concerned that when the next earthquake occurs, there will be a lot of earthquakes."
"There's currently no way to get a message quickly enough from our system to the public because none of our systems were built for speed."
Three earthquakes rocked California on Thursday.
The crystals carry a memory of environmental changes the way trees do with their rings.
Geology experts are keeping a close watch on the situation.
"It's beyond comprehension."
Other vulnerable countries have had systems in place for years.
Earthquake prediction is a science, but it can't give us all the answers we might want.
Earthquakes are essentially impossible to predict, and that's still true no matter what the headlines say.
When Tehran was struck by deadly ISIS attacks in June, President Donald Trump took the opportunity to blame Iran's government.
The country's president has issued an appeal for calm.
New evidence has found that the San Jacinto Fault zone, in California, is not as quiet as we thought and may be due for a big quake.
Current earthquake warning systems can only offer people seconds to take shelter.
The nuclear test has made the mountainous location unsuitable as a base.