National Tsunami Warning Center, NOAA/NWS

TSUNAMI of 9 October, 2014 (Southern East Pacific Rise)

A major earthquake with a moment magnitude of 7.1 (USGS magnitude) occurred at 02:14:32 9 0ctober, 2014 (day 282) and was located 351 mi/565 km SSW of Hanga Roa, Chile {Easter Island}, (32.115 S, 110.779 W, 9.6 mi/15.5 km depth--USGS location).

This earthquake caused a tsunami that was recorded at tide gages monitored by the National Tsunami Warning Center (NTWC). Many observatories provide data to the Center; such as the NOAA National Ocean Service, the U. of Hawaii Sea Level Center, the Chilean Navy, the Japan Meteorological Agency 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 wave arrival computed at the NTWC based on the earthquake origin time and location. The Sample Interval column shows the time between data samples.

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

 

Earthquake Location
(click to enlarge)

Travel Time Map
(click to enlarge)

 

Tide gage/
Measurement Location

Estimated Arrival Time
[UTC (J.Day)]

Observed Arrival time
[UTC (J.Day)]

Peak amplitude
(above sea level in cm)

Time of Peak Amplitude Measurement
[UTC (J.Day)]

Model Forecast Amplitude
(above sea level in cm)

Initial motion

Sample Interval
(min)

Data File
(Julian Day Starts
at 0000 UTC)

Juan Fernandez, Chile

0640 (282)

0705 (282)

4

0712 (282)

-

-

1

282

San Felix, Chile

0645 (282)

0658 (282)

11

0713 (282)

-

up

1

282

Santa Cruz, Galapogos

-

≈ 0901(282)

12

0908 (282)

-

up

1

282

Bahia Mansa, Chile

-

0753 (282)

11

0809 (282)

-

up

1

282

Easter Island, Chile

-

-

47

-

-

-

-

**


** The NTWC data feed from Easter Island was interrupted about 15 minutes prior to the wave ETA and was out for approximately 3 hours. The Chilean Navy reported a tsunami wave with an approximate 47 cm amplitude at Easter island/Isla de Pascua.


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