On July 27, 1949 CE, a tsunami event was recorded in the Columbia River Valley, Washington, USA, according to the NOAA/NCEI Global Historical Tsunami Database. The event is cataloged with a validity score of 4 and carries cause code 8, occurring at 18:00 UTC (18 hours, 0 minutes) on its calendar date.
Location and Geographic Coordinates
The official record places the event in the Columbia River Valley in the state of Washington (region code WA). Its geographic coordinates are recorded at latitude 47.82 and longitude -118.36.
Maximum Water Height Measurements
The database documents a maximum water height of 19.81 meters for this event. This figure represents the maximum recorded water height at the specific location rather than a uniform height across the entire region.
Sources and further context
Official datasets support the event-specific facts.