The magnitude 3.6 quake comes as scientists analyze long-term unrest at one of the world's most populated active volcanoes.
Researchers have created a map of the subsurface features that help the movement of hot and cold water.
You also can't stop an eruption by cooling magma with cold water.
Scientists studying the formation of Sierra Nevada say volcanic eruptions between 40 and 20 million years ago made the Great Basin the highest point in the U.S.
Volcanologist Colin Wilson says the findings "change the way we think about the massive Yellowstone explosions."
Scientists say this is the best-recorded earthquake swarm to hit Yellowstone and the team is now analyzing the data from it.
The eruption was so big it covered an area the size of New Jersey in volcanic glass.
Researchers say the intrusion may explain the increased number of explosions at the Steamboat Geyser.
Discovery at an archaeology site in India gives clues to human migration across east Asia and into Australia.
Some 500,000 people live in Campi Flegrei's "red zone." Researchers say the government's emergency plan should acknowledge the possibility of tsunamis if an eruption occurs.
The volcano famously experienced the largest caldera-forming eruption Europe has seen in the past 200,000 years.
The earthquake swarm at the western part of the national park lasted for three and a half months.
Scientists analyzing volcanic samples in Italy find similar conditions preceded eruptions over the last 60,000 years.
Climate change is causing wildfires in Yellowstone National Park to get bigger and burn for longer, a report has warned.
Scientists think they've found the magma behind the volcano's incredible eruptions.
"Man, the changes would be so much bigger than anything we've ever seen."
The global events happen way more often than scientists thought.
Research indicates a huge upwelling of hot rock lies beneath the ice of Antarctica's Marie Byrd Land.
The magma under a long-ago supervolcano never heated up as thoroughly as scientists had assumed.
The event began in June, and since then almost 2,500 tremors have been noted.
Source of magma has been discovered beneath the city of Pozzuoli.
If the ongoing earthquake swarm continues, it could become the longest ever recorded.
Scientists find supervolcanoes potentially host huge reservoirs of lithium in their ancient deposits.
The map shows changes in the elevation around the caldera between 2015 and 2017.
Fossil evidence forces major rethink of how and when humans arrived in Southeast Asia.
The earthquake swarm began six weeks ago and is ongoing.