1854-12-24 tsunami – NANKAIDO: Historical Tsunami Record and Measurements

On December 24, 1854 CE, a major tsunami struck the Nankaido region of Japan. Documented in the NOAA/NCEI Global Historical Tsunami Database, the event occurred at 08:00 UTC (8:00 AM) and is classified with a validity of 4, indicating definite tsunami occurrence.

Event Characteristics and Earthquake Association

The tsunami was directly associated with an earthquake measuring magnitude 8.4. The geographic coordinates recorded for the event are latitude 33.1 and longitude 135.0 off the coast of Nankaido, Japan. Historical records compiled in the database attribute 3,000 deaths to the event.

Measurements and Severity

Observations for the Nankaido event include a maximum recorded water height of 28.0 meters. In tsunami datasets, this figure represents the maximum measured runup or wave height recorded at specific reporting locations rather than a uniform height across the entire coastline.

Frequently asked questions

When did the 1854 Nankaido tsunami occur?

The tsunami occurred on December 24, 1854 CE, at 08:00 UTC.

What was the magnitude of the earthquake associated with the tsunami?

The associated earthquake had a magnitude of 8.4.

What was the maximum water height recorded for the 1854 Nankaido tsunami?

The maximum recorded water height was 28.0 meters.

How many fatalities were recorded in the NOAA/NCEI database for this event?

The database records 3,000 deaths resulting from the event.

Sources and further context

Official datasets support the event-specific facts.