On July 10, 1958, a tsunami struck Southeast Alaska, United States, leaving a recorded impact detailed by the NOAA/NCEI Global Historical Tsunami Database. The event combined seismic activity with extreme coastal water displacement, resulting in five deaths and recorded property damage amounting to 0.1 million USD.
Event Chronology and Location
According to the official historical record, the event occurred on July 10, 1958. The recorded event time was 06 hours, 15 minutes, and 59.9 seconds. The geographic coordinates for the event are latitude 58.37 and longitude -136.665 in Southeast Alaska (region AK), categorized under validity class 4.
Earthquake Association and Measurements
The tsunami was associated with an earthquake measuring magnitude 7.8. Official measurements document an extreme recorded maximum water height of 524.6 meters, reflecting the peak local wave runup measured for the event.
Frequently asked questions
When did the 1958 Southeast Alaska tsunami occur?
The tsunami occurred on July 10, 1958, at 06:15:59.9 UTC/local time as recorded in the database.
What was the magnitude of the earthquake associated with the tsunami?
The event was associated with a magnitude 7.8 earthquake.
What was the maximum water height recorded for this tsunami?
The NOAA/NCEI Global Historical Tsunami Database recorded a maximum water height of 524.6 meters.
What were the reported human and financial impacts?
The event resulted in 5 deaths and 0.1 million USD in damage.
Sources and further context
Official datasets support the event-specific facts.