When a large earthquake occurs, geophysicists have many tools at their disposal to determine the properties of the fault (or faults) that ruptured during the earthquake.
You may have noticed that we've launched an updated version of our recent events page.
The goals of the revamp were twofold:
Every year at this time, I take a few moments to reflect on the March 27, 1964 Great Alaska Earthquake and tsunamis.
At 12:31am on January 23, a magnitude 7.9 earthquake struck in the Gulf of Alaska about 180 miles southeast of Kodiak Island (see figure 1).
Alaska was rocked by a magnitude 7.9 earthquake just after midnight on Tuesday, January 23, 2018.
When the North Koreans set off their latest nuclear test last Sunday, we were the first to record the explosion signal as it reached U.S. soil.
Recently, many national news outlets picked up a story about the earthquake and tsunami threat posed by Alaska’s Shumagin Gap. The headlines were frightening.
The magnitude 7.7 earthquake on July 17, 2017 in the Komandorskie Islands is the largest of its kind
After a long spell with few earthquakes strong enough to be felt, over the last ten days we've had 3 earthquakes larger than magnitude 6, seven larger than M5, and more than fifty larger than M4.
Earthquakes beneath and around Denali are very common and in fact encapsulate three stories of Alaska seismicity in one location.