National Tsunami Warning Center, NOAA/NWS
Tsunami of 25 March, 2007
A major earthquake with an initial magnitude of 7.1 ocurred at 0042 UTC 25
March 2007, off the west coast of Honshu, Japan (37.281°N, 136.602°E,
50Km depth - USGS location).
The earthquake produced a small tsunami that was
recorded at several tide gages operated by the Japanese Meteorological Agency. The magnitude
of the earthquake was subsequently resized to M 6.7. Wave heights are maximum peak-to-trough height in cm. Arrival
time is the actual tsunami arrival time in UTC on gages where it could be determined.
The ETA is the estimated time of arrival computed at the National
Tsunami Warning Center (NTWC) based on the origin time and location. The
Sample Interval column shows the time between samples.
*** NTWC does not have a data feed for these Japanese tide gauges and therefore, is not able to provide the data, or actual/computed ETAs for these sites.