PSN-L Email List Message

Subject: Hawaiian quake redux
From: Mark Robinson mark.robinson@...............
Date: Tue, 19 Dec 2006 11:25:28 +1300

Big Hawaiian Earthquake Had Surprising Trigger
15 December 2006
SAN FRANCISCO—A new fault formed off the northwest coast of Hawaii on Oct. 15
of this year, and now scientists are figuring out what caused the crack and the
ensuing 6.7 magnitude earthquake.

The surprising results were announced here today at a meeting of the American
Geophysical Union.

The crack extends about 9 miles in length in the oceanic plate that supports
the island. It  formed about 35 miles below the sea-surface level, much deeper
than quakes typically originate in that region. The temblor set off a chain of
events, including a shallower earthquake of magnitude 6.0 and more than 80
aftershocks within a 24-hour period.


Mark Robinson
19 Dec 1642 Maori kill 4 men in Zeehauen cockboat.
19 Dec 1688 Robinson Crusoe leaves his island after 28 years shipwrecked.
19 Dec 1843 Charles Dickens' A Christmas Carol is published in the United
19 Dec 1848 Emily Bronte died aged 30.
19 Dec 1959 Last Veteran of American civil war dies in Texas.

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