Two of our field crew, blessed with adequate weather, made the 180-mile flight from Kodiak to Chirikof Island last week. Once there, they replaced two aging seismometers, measured battery voltages and radio signal strength, and t
We spend a lot of time at the Earthquake Center anticipating what will happen during large earthquakes. For earthquakes occurring off the coast, tsunamis are one of our greatest hazards.
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