FIGURE I.1 Map of Samoa tsunami source. SOURCE: http://news.bbc.co.uk/2/hi/8281616.stm; with permission from the BBC.

FIGURE I.1 Map of Samoa tsunami source. SOURCE: http://news.bbc.co.uk/2/hi/8281616.stm; with permission from the BBC.

TABLE I.1 Timeline for Key Events During Samoa Tsunami

Arrival time (HR:MIN:SEC) received by USGS QDDS system

Elapsed time (HR:MIN:SEC)

What

17:48:10

0:00:00

Earthquake origin time

17:48:37

0:00:27

P ARRIVAL at AFI (179km)

17:48:58

0:00:48

S ARRIVAL at AFI (179km)

17:49:50

0:01:40

Strong shaking abates at AFI

17:56:24

0:08:14

PTWC M7.1 Hypocenter

17:57:15

0:09:05

WC/ATWC M7.9 Hypocenter

18:03:15

0:15:05

WC/ATWC Tsunami Information Statement (message states 18:02 release)

18:05:10

0:17:00

PTWC Expanding Regional Warning (message states 18:04 release and M7.9)

18:07:15

0:19:05

NEIC M7.9 Hypocenter

SOURCE: Committee staff.



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