Staff are seen on CCTV fleeing from a supermarket during an earthquake in Myanmar on July 18. The magnitude 5.4 quake struck around 49 miles (79 km) north of Mandalay at around 4pm local time. It had a depth of 6km, according to the US Geological Survey ...

A 5.4-magnitude earthquake was reported in Alaska on Wednesday (July 16), according to the United States Geological Survey. The earthquake was centered in Atka at a depth of 69 kilometers (about 43 miles). The USGS said it received one report of person having felt the earthquake at the time of publication.

Wednesday’s magnitude 7.3 earthquake off Alaska’s Aleutian Islands chain struck in a region that has experienced a handful of powerful quakes within the last five years

The alerts rely on detecting fast-moving P-waves, which precede the more destructive S-waves during an earthquake. If enough phones detect the P-waves, the system sends warnings to users who may be seconds away from feeling shaking. These seconds can be enough to duck for cover, stop surgery or pause critical infrastructure.

The fireball is presumed to be from a meteor fragmenting in the sky, according to meteorologists and other experts.

The researchers found that approximately 30% of all earthquakes from 1980 to 2016 near the Missouri-Kentucky border, all magnitude 2.5 or greater, were likely aftershocks from the three major ...

Aftershocks from devastating earthquakes in the 1800s near the Missouri-Kentucky border and in Charleston, South Carolina, may still be occurring, a study found.