M 4.5 Light Earthquake Recorded 59 km SE of Adak, Alaska
A magnitude 4.5 earthquake occurred southeast of Adak, Alaska, on March 14, 2026. The intermediate-depth event resulted in no tsunami advisories.
What Happened
A light earthquake with a magnitude of 4.5 ml occurred on March 14, 2026, at 12:31:42 UTC. The seismic event was recorded at a depth of 28.5 km and has been officially reviewed by seismologists.
Location Details
The epicenter was located at coordinates 51.55°N, 175.951°W, approximately 59 km southeast of Adak, Alaska. The depth of 28.5 km is categorized as an intermediate-depth seismic event (20-70km).
Impact Assessment
The earthquake registered a maximum Modified Mercalli Intensity (MMI) of 3.64. There were no felt reports submitted to the USGS for this event at the time of reporting. No tsunami advisory, watch, or warning was issued following the tremor, and no specific alert level color was assigned.
What You Should Know
This event is classified as a “light earthquake.” While magnitudes between 4.0 and 4.9 are frequently felt and can cause noticeable shaking, they typically result in little to no damage to infrastructure. Residents in the Aleutian Islands region should remain aware of the possibility of routine aftershocks.
Source
Data and attribution courtesy of the USGS.
Source: USGS Official Notice