National Tsunami Warning Center, NOAA/NWS

Tsunami of 1 April 2007

A great earthquake with a moment magnitude of 8.0 (USGS magnitude) occurred at 2040 UTC 1 April 2007 (day 091) and was located near the Solomon Islands (8.453S, 156.937E, 10.0km depth - USGS location).

The earthquake produced a tsunami that was recorded at tide gages monitored at the Tsunami Warning Centers. Many observatories provide data to the centers; such as the NOAA National Ocean Service, the Japanese Meteorological Agency, the U. of Hawaii Sea Level Center, the Chilean Navy, and the National Tidal Facility in Australia among others. Click on the site name to see a graph of the tsunami, when available. Listed wave heights are maximum amplitude in cm (above sea level). Observed Arrival time is the actual tsunami arrival time in UTC on gages where it could be determined. The Computed Arrival time 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.

For additional information about this tsunami see the Pacific Tsunami Warning Center's homepage .

 

travel time map maximum wave heights
Travel Time Map
(click to enlarge)
Maximum Wave Heights, Modeled
by Bill Knight at NTWC
(click to enlarge)





Tide gage

Peak amplitude (above sea level in cm)

Observed Initial Arrival time (UTC)

Computed Initial Arrival time (UTC)

Initial motion

Sample Interval (min)

Data File (Julian Day Starts at  0000 UTC)

 

 

 

 

 

 

 

Honiara, Solomon Is.

21

2125

2121

rise

6

091   092   093

Kwajalein, Marshall Is.

8

0028

1

091   092   093

Pago Pago, American Samoa

8

0146

1

091   092   093

Nukualofa, Tonga

7

0147

6

091   092   093

Midway Island

7

0354

1

091   092   093

Jackson Bay, New Zealand

34

0430

0254

rise

6

091   092   093

Hilo, Hawaii

7

0615

0502

rise

1

091   092   093

Adak, Alaska

7

0631

1

091   092   093

Honolulu, Hawaii

3

0438

1

091   092   093

Port San Luis, California

9

0955

1

091   092   093

Kahului, Hawaii

13

0513

1

091   092   093

Santa Monica, California

11

1012

1

091   092   093

San Diego, California

10

1

091   092   093


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